Washington State Electric Utility Resource Planning 2022 Report — Report to the Legislature (April 2024)
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Summary
The Washington State Electric Utility Resource Planning 2022 Report is a report to the Legislature required under RCW 19.280.060 and issued by the Washington State Department of Commerce in April 2024. It summarizes resource plans submitted by 63 utilities for a 10-year planning cycle, with most utilities using 2021 as the base year and 2026 and 2031 as the five-year and 10-year points. Key findings state that utilities plan to reduce coal-fired generation and short-term contracts, increase natural gas, wind, other renewables and Bonneville Power Administration resources, and that hydropower will remain the dominant source. Table 1 reports statewide loads of 10,202 aMW in the base year, rising to 11,363 aMW in the 10-year forecast. The report includes utility cover sheets and closes with a glossary of terms.
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Cite this document
“Washington State Electric Utility Resource Planning 2022 Report — Report to the Legislature (April 2024).”
Original at app.leg.wa.gov. Archived at Pandemic Darlings, https://pandemicdarlings.com/source-documents/2024-washington-state-electric-utility-resource-planning-2022-report-final/
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Washington State Electric
Utility Resource Planning
2022 Report
April 2024
ENERGY Report to the Legislature
Director Mike Fong
v3.4
Acknowledgments
Washington State Department of Commerce
Aaron Tam
Electric and Natural Gas Data Specialist
Glenn Blackmon
Director, Energy Policy Office
Austin Scharff
Senior Energy Policy Specialist
1011 Plum St. SE
P.O. Box 42525
Olympia, WA 98504-2525
www.commerce.wa.gov
For people with disabilities, this report is available on
request in other formats. To submit a request, please
call 711.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 2
2.0
Table of Contents
Executive summary .........................................................................................................................................4
Introduction ....................................................................................................................................................6
Utility reporting ...............................................................................................................................................7
Results............................................................................................................................................................8
Overgeneration .............................................................................................................................................16
Resource adequacy .......................................................................................................................................17
Regional resource forecasts .........................................................................................................................18
Appendix A: Utility Cover Sheets ...................................................................................................................22
Appendix B: Washington Utility Customer Count, Revenue, Sales, and Average Price ...................................79
Appendix C: Glossary of Terms .....................................................................................................................81
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 3
Executive summary
Chapter 19.280 RCW requires electric utilities develop resource plans to assess their specific future load and
resource requirements. The Department of Commerce is tasked with collecting and analyzing the utility
resource plans and creating a summary report for the Legislature.1
The 2022 Utility Resource Plan Report summarizes the findings of Washington state load and resource
information for a 10-year planning cycle – with most utilities using 2021 as the base year.2 Key findings of the
2022 Utility Resource Plan report are:
Utilities plan to reduce their use of coal-fired electricity generation serving Washington retail customers
and net use of short-term contracts in the forecast periods, and to increase their use of natural gas-fired
generation, wind power, other renewables, and Bonneville Power Administration resources. Hydropower
will remain the dominant source of electric for Washington utilities over the 10-year forecast period.
There was no significant variation in the electricity needed to serve the state from 2008 through 2022.
Statewide aggregate load growth forecasts by utilities for the next five and 10 years has trended down
with each successive Commerce Utility Resource Plan report.
The statewide aggregate load growth in electricity demand for 2026 and 2031 is expected to be
moderate, and most of this growth will be offset through energy conservation programs operated by
utilities. With the majority of load growth met by energy conservation programs, new renewable
resources primarily serve to replace retiring coal-fired generation and thermal natural gas generation.
However, several utilities (Chelan, Douglas and Grant PUDs) are forecasting high load growth rates over
the next 10 years due to growth in data centers, computing demand, and cryptocurrency mining.
Most utilities plan to meet load requirements in the lowest-cost, least-risk way by renewing Bonneville Power
Administration contracts (for slice or block products or shifting to a load following product), maximizing
energy conservation measures, and implementing new demand response measures. While several consumer-
owned utilities plan to remove natural gas from their resource portfolios in their five-year forecast, all the
investor-owned utilities plan to maintain relatively steady amounts of natural gas in their resource portfolio.
Regional resource planning studies have found the Northwest has adequate resources to meet current
demand for electricity and does not face significant risk of outages in the short term, but there needs to be a
concerted effort to bolster the electric grid to serve the dual objectives of reducing fossil-fired generation and
increasing electric loads for transportation, buildings, and industry.
The Clean Energy Transformation Act (CETA), Washington's 100% clean electricity law, includes requirements
for utilities to establish specific standards for resource adequacy and incorporate those standards into their
planning and compliance. As utilities reduce reliance on coal-fired and gas-fired power plants and add variable
renewable energy such as wind and solar, new approaches and resources will be required to maintain resource
1 Section 19.280.060, Department's duties—Report to the legislature. (2022, June 29). Retrieved from Revised Code of Washington:
https://app.leg.wa.gov/RCW/default.aspx?cite=19.280.060. This report was completed prior to the close of the 2024 legislative
session. Any amendments to this statute will be taken into consideration in future reports.
2 Completed reporting of utility plans under Washington's 100% clean electricity law (RCW 19.405) and proposed legislation to amend
this report led Commerce to delay the release of the 2022 report.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 4
adequacy to ensure reliable service to customers. It is equally important to incorporate risks associated with
fossil generating resources, including fuel supply risk and weather-driven forced outage risks.
While resource adequacy is an obligation of each electric utility serving end use customers in the state, it also
is a shared responsibility of the overall electric power system and the entities that operate, plan, regulate,
design, and fund the generation, transmission, and delivery of that system.
At the state level, Commerce and the Utilities and Transportation Commission hold an annual resource
adequacy meeting in accordance with RCW 19.280.065.3 A summary of that meeting is available on
Commerce's Resource Adequacy webpage.
Legislative mandate
This report is required biennially per RCW 19.280.060, which states:
The department shall review the plans of consumer-owned utilities and investor-owned utilities, and data
available from other state, regional, and national sources, and prepare an electronic report to the
legislature aggregating the data and assessing the overall adequacy of Washington's electricity supply.
The report shall include a statewide summary of utility load forecasts, load/resource balance, and utility
plans for the development of thermal generation, renewable resources, conservation and efficiency
resources, and an examination of assessment methods used by utilities to address overgeneration events.
The commission shall provide the department with data summarizing the plans of investor-owned utilities
for use in the department's statewide summary. The department shall submit any reports it receives of
existing and potential combined heat and power facilities as reported by utilities to the Washington State
University extension energy program for analysis. The department may submit its report within the
biennial report required under RCW 43.21F.045.
3 Section 19.280.065, Department and commission meeting—Summary to the governor and legislature. (2022, June 29). Retrieved from
Revised Code of Washington: https://app.leg.wa.gov/RCW/default.aspx?cite=19.280.065
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 5
Introduction
Background
Washington consumers and businesses depend on electricity service from more than 60 electric utilities
operating in this state. These utilities vary greatly in size, geographic scope, history and governance, but each
is responsible for ensuring an adequate supply of an essential resource.
Washington law requires each utility plan for the future by examining the projected amounts of electricity that
will be required by customers in the coming decade and identifying the power resources that will be used to
meet those demands.4 Each utility must prepare a report every two years and submit it to Commerce.
Commerce reviews the utility reports and submits a summary to the Legislature. This is the eighth report since
the Legislature enacted the resource planning law in 2006.
Depending on their size and power sources, utilities submit either a resource plan (RP) or an integrated
resource plan (IRP). The RP is a short-form report of load5 and resources and may be submitted only if the
utility has fewer than 25,000 customers and is a full requirements customer"6 of Bonneville Power
Administration. The IRP is a more detailed plan and must incorporate a number of specific requirements
identified in statute.
Purpose
Utilities develop resource plans to assess their future load and resource situations. This report aggregates the
individual reports to provide an assessment at the statewide level of whether utilities are planning for adequate
supplies, and what resources are expected to meet any growth in electric power demand.
This report summarizes the electricity loads and resources reported by Washington utilities in their 2022
reports to Commerce. It compares them to estimated summaries of previous years. Resources proposed to
meet load are categorized by generating fuel type and source type (such as contract or market). An imbalance
of loads and resources may indicate either a resource surplus or deficit.
The information collected for this report is limited to the identification of loads and resources and their
associated aggregate quantities. It does not attempt to evaluate specific goals or outcomes for resource
acquisition strategies used by utilities.
This report provides information on utilities’ energy efficiency and renewable energy resources. It does not
analyze issues related to the energy efficiency and renewable energy requirement of, or compliance with, the
Energy Independence Act (Chapter 19.285 RCW) or the Clean Energy Transformation Act (Chapter 19.405
RCW).
4 Chapter 19.280, Electric Utility Resource Plans. (2022, June 29). Retrieved from Revised Code of Washington:
https://app.leg.wa.gov/RCW/default.aspx?cite=19.280
5 As used in the statute and this report, “load” means the amount of electric energy demanded by a utility’s customers during a defined
period.
6 "Full requirements customer" as defined in Section 19.280.020(7) means an electric utility that relies on the Bonneville Power
Administration for all power needed to supply its total load requirement other than that served by nondispatchable generating
resources totaling no more than six megawatts or renewable resources.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 6
Utility reporting
The utility resource planning statutes (Chapter 19.280 RCW) require that each utility prepare a resource plan
(RP) and submit it to Commerce by Sept. 1 of each even-numbered year. Commerce received reports from 63
utilities. The individual reports are presented in Appendix A.
Electric utilities in Washington vary significantly in size and the scope of operations. This is reflected in the
way utilities approach resource planning and forecasting. Larger utilities typically use multiple sources of
electricity supply to meet their customers’ requirements and engage in sophisticated assessments of risks and
benefits in evaluating alternative sources of new energy. Many smaller utilities rely on the Bonneville Power
Administration, which undertakes the complex planning and forecasting exercise that leads to a resource plan.
The resource planning statute reflects this difference in approaches. It requires that larger utilities prepare and
submit IRPs, which are the product of a thorough assessment of future needs and alternatives for meeting
those needs through both demand-side and supply-side resources. Smaller utilities are allowed to prepare and
submit a simplified assessment of loads and resources.
Interpretation of base year, five-year and 10-year data
The resource plan summary submitted to Commerce includes load and resource information for three points
in a 10-year planning cycle. These points are the base year, five-year and 10-year plans. In 2022, most utilities
used 2021 as the base year, and the five-year and 10-year points are 2026 and 2031, respectively. However,
utilities vary in their planning cycles, and some utilities use an earlier or later set of years in their reporting; the
base year ranges from 2020 to 2022. For purposes of the statewide summary, Commerce aggregates all base-
year data into a single value (2021) and does likewise for the five-year (2026) data and 10-year data (2031).
Interpretation of conservation and load data
An important principle of integrated resource planning is that all resources should be evaluated on a
consistent basis. This includes different generating resources, such as wind and natural gas, as well as energy
conservation measures and demand response resources. With energy conservation measures and demand
response being analyzed and compared to supply-side options, utilities are able to determine whether
customers are better served by increasing energy efficiency, demand reduction, or energy supply.
Consequently, energy conservation measures are sometimes portrayed as a reduction in the utility’s load and
sometimes portrayed as resources available to meet load. This can lead to confusion in interpreting utility
plans.
Here is how this potential confusion is resolved:
Utilities report a base year load amount that reflects whatever conservation has occurred in the past. For
the five-year and 10-year values, utilities are directed to report the load that they would expect to serve in
the absence of any additional conservation savings. The report separately lists the conservation resources
that the utility expects to acquire during the five-year and 10-year periods.
For example, Avista reports that its load in 2022 (base year) was 680 average megawatts (aMW).7 This
figure represents the actual load of its customers in the base year. It reflects many years of conservation
programs at Avista and would be significantly higher without those historical conservation achievements.
For the five-year interval (2027), Avista forecasts a load of 692 aMW and conservation savings of 33 aMW.
7 aMW, or average megawatt, is an amount of electric energy equal to one megawatt-hour per hour for an entire year, or 8,760
megawatt-hours.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 7
The first number represents the load that Avista would expect if it achieved no conservation savings after
the base year. Without additional conservation, its load would increase by 12 aMW, but with future
conservation the forecast load with conservation decreases by 21 aMW for an adjusted total load of 659
aMW at the end of the five-year interval.
In summary, the amounts reported as load for the five-year and 10-year intervals are based on an assumption
of no new conservation. The actual loads at these future time points are likely to be lower by the amount of
energy conservation identified by each utility.
Results
The 2022 resource plans submitted to Commerce are summarized in Table 1-5 and Figures 1 and 3.
Table 1 presents utility report information in units of average-Megawatts (aMW) on statewide annual utility
load and resources, including imports and exports, for the base year (2021), and the five and 10-year forecasts.
The right two columns in the table illustrate the difference between the base year and the five and 10-year
forecasts.
Table 1 also presents the composition of electric generation resources for the base year, and the five and 10-
year forecasts.
Figure 1 presents the composition of electric generation resources for the five-year and 10-year forecasts.
Table 1 and Figure 1 show that utilities plan to continue relying mostly on Bonneville Power Administration
(BPA), hydroelectric generation and thermal natural gas plants to meet electricity demand. The BPA resource
is a blended resource and is typically 85% hydropower, 11% nuclear, and 4% unspecified market purchases.
Figure 1 reveals that hydropower will remain the largest source of electricity for Washington utilities. While
several consumer-owned utilities plan to remove natural gas from their resource portfolios in their five-year
forecast, all the investor-owned utilities plan to maintain relatively steady amounts of natural gas in their
resource portfolio.
Table 1: Washington's Projected Requirements and Resources - Annual
Energy aMW
Base Year 5-year forecast 10-year forecast 5-year change 10-year change
Requirements
Loads 10,202 10,818 11,363 616 1,161
Exports 226 217 190 (9) (36)
Energy Conservation Measures - (405) (816) (405) (816)
Demand Response 0 (23) (33) (23) (33)
Total Net Requirements 10,428 10,607 10,704 179 276
Resources
Total BPA 4,360 4,492 4,669 132 309
Hydro 2,681 3,316 3,553 635 872
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 8
Base Year 5-year forecast 10-year forecast 5-year change 10-year change
Thermal Natural Gas 2,692 2,563 2,433 (129) (259)
Wind 638 1,070 1,026 432 388
Other Renewables 142 342 538 200 395
Net Short-Term Contracts 214 78 114 (136) (100)
Net Long-Term Contracts 1,080 197 103 (883) (977)
Other 37 44 77 7 40
Thermal Coal 726 156 67 (570) (658)
Imports 89 56 51 (33) (38)
Distributed Generation 5 11 18 6 13
Cogeneration 15 15 15 0 0
Undecided - 1 13 1 13
Market Purchase 2 (2) (2)
Total Resources 12,680 12,341 12,676 (339) (4)
Load Resource Balance 2,252 1,735 1,972 (517) (280)
Of note is that coal resources listed after 2025 are entirely attributable to PacifiCorp's integrated resource
plan. PacifiCorp pro-rated its total system resources to Washington based on the ratio of Washington’s energy
usage to PacifiCorp’s total system energy usage. In the company’s April 13, 2023, submission, Washington is
seeing a share of coal resources because PacifiCorp does not have a Washington-specific load and resource
balance and therefore all resources (regardless of type) were pro-rated. This methodology notwithstanding,
Washington will no longer receive either the costs or benefits from PacifiCorp’s coal resources after 2025, in
accordance with Washington Clean Energy Transformation Act (CETA) requirements and Washington Utilities
and Transportation Commission (WUTC) orders.
Figure 1: Forecast Available Resources
5,000
4,500
4,000
Annual Energy aMW
3,500
3,000
2,500
2,000
1,500
1,000
500
-
5-year Forecast 10-year Forecast
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 9
Table 2 presents in average-megawatts the differences between the 2022 and 2020 resource reports on
statewide annual utility load and resources and the five and 10-year forecasts.
Table 2 shows a diminished contribution from coal-fired electricity generation in the forecast period, and an
increased reliance on natural gas-fired generation, wind power, other renewables, and BPA resources.
The shift in electric generation resources shows progress towards meeting the requirements of the Clean
Energy Transformation Act (CETA). CETA prohibits utilities from using coal generation after 2025.8 It requires
all retail sales of electricity to Washington be greenhouse gas neutral by 20309 and 100% non-emitting by
2045.10
Table 2: Difference between 2022 and 2020 Requirements and Resources -
Annual Energy aMW
Base Year 5-year Forecast 10-year Forecast
Requirements
Loads (105) 43 (9)
Exports (107) (40) (1)
Energy Conservation Measures - 88 (2)
Demand Response - (13) (23)
Total Net Requirements (213) 78 (35)
Resources
Total BPA (57) 212 265
Hydro (379) 127 193
Thermal Natural Gas 606 675 690
Wind 119 395 448
Other Renewables 61 188 257
Net Short-Term Contracts (32) (243) (221)
Net Long-Term Contracts 553 (302) 8
Other 42 49 71
Thermal Coal (252) (527) (402)
Imports (76) 2 (6)
Distributed Generation 2 4 5
Cogeneration 2 (0) 11
Undecided - (10) (14)
8 Section 19.405.030(1), Coal-fired resources-Depreciation schedule-Penalties. (2022, June 29). Retrieved from Revised Code of
Washington: https://app.leg.wa.gov/RCW/default.aspx?cite=19.405.030
9
Section 19.405.040(1), Greenhouse gas neutrality-Responsibilities for electric utilities-Energy transformation project criteria-Penalties.
(2022, June 29). Retrieved from Revised Code of Washington: https://app.leg.wa.gov/RCW/default.aspx?cite=19.405.040
10 Section 19.405.050(1), Clean energy implementation-Hydroelectric facilities-Special contracts. (2022, June 29). Retrieved from
Revised Code of Washington: https://app.leg.wa.gov/RCW/default.aspx?cite=19.405.050
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 10
Base Year 5-year Forecast 10-year Forecast
Market Purchase (10) (34) (43)
Total Resources 580 535 1,262
Load Resource Balance 792 459 1,297
Most Washington utilities experience their annual peak load during the winter months. Table 3 presents
utilities' aggregated report information for their highest estimated one-hour load during the winter season,11
including imports and exports, for the base year (2021), and the five and 10-year forecasts. Because electricity
demand tends to be higher during the winter season compared to other seasons, utilities rely more extensively
on dispatchable thermal resources and short-term contracts to meet load during the winter season. Demand
response is also an important resource during the winter, as this reduces the need for utilities to operate gas
turbines or make market purchases during periods of very high demand. Utilities forecast reduced use of long-
term contracts, coal, and BPA resources to meet summer peak and winter peak requirements in the five-year
and 10-year forecasts.
Table 3: Washington Projected Requirements and Resources - Winter
Capacity MW
Base Year 5-year forecast 10-year forecast 5-year change 10-year change
Requirements
Loads 12,721 13,623 14,640 902 1,919
Exports 263 188 162 (75) (102)
Energy Conservation Measures (524) (1,006) (524) (1,006)
Demand Response (202) (387) (202) (387)
Total Net Requirements 12,985 13,086 13,409 102 425
Resources
Hydro 3,225 4,595 5,146 1,370 1,920
Total BPA 3,762 3,506 3,650 (256) (112)
Wind 233 310 323 77 90
Other Renewables 68 130 179 61 111
Thermal Natural Gas 3,175 2,849 3,258 (326) 83
Cogeneration 15 16 16 0 0
Thermal Coal 935 342 263 (593) (672)
Other 20 112 244 92 224
Undecided - - - - -
Imports 309 323 305 13 (5)
Distributed Generation 1 2 3 1 2
Net Short-Term Contracts 1,836 1,816 1,892 (20) 56
11 Table 1 expressed in energy units of aMW, Table 3 in capacity units of MW.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 11
Base Year 5-year forecast 10-year forecast 5-year change 10-year change
Net Long-Term Contracts 1,396 114 70 (1,282) (1,326)
Market Purchase - -
Total Resources 14,976 14,114 15,349 (862) 372
Load Resource Balance 1,991 1,028 1,939 (964) (52)
Table 4 presents a time series of Commerce Utility Resource Plans. The information in the table presents
aggregated annual utility loads (base year, five-year and 10-year) for the 2008 through 2022 Commerce
reports. The forecast loads do not include the energy conservation measure (ECM) forecast by utilities. Figure
2 presents the information in Table 4 in a graphical format. Table 5 and Figure 3 present the aggregated
annual utility loads (base-year, five-year and 10-year) and include energy conservation measures and demand
response forecasts by utilities.
Table 4 and Table 5 and Figure 2 and Figure 3 show load growth forecasts by utilities for the five and 10-year
out points have been trending down with each successive report. By comparing Figure 2 and Figure 3 it is
evident that utility conservation programs significantly reduce aggregate load growth.
Table 4: Utility Report Time Series — Base Year and Forecast Loads Without
Energy Conservation Measures
Utility Report
Base Year Base Year, aMW 5-year Est. 5-year Est. aMW 10-year Est. 10-year Est. aMW
Year
2008 2007 10,008 2012 11,304 2017 12,270
2010 2009 10,606 2014 11,737 2019 12,717
2012 2011 10,265 2016 11,264 2021 12,126
2014 2013 10,166 2018 11,502 2023 12,380
2016 2015 10,099 2020 10,875 2025 11,576
2018 2017 10,231 2022 10,816 2027 11,356
2020 2019 10,307 2024 10,775 2029 11,372
2022 2021 10,202 2026 10,818 2031 11,363
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 12
Figure 2: Utility Report Time Series — Base Year and Forecast Loads
Without Energy Conservation Measures
13,000
12,500
12,000
11,500
aMW
11,000
10,500
10,000
9,500
Base Year 5-year Forecast 10-year Forecast
2008 2010 2012 2014 2016 2018 2020 2022
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 13
Table 5: Utility Report Time Series — Base Year and Forecast Loads with
ECM and Demand Response
Utility Report
Base Year Base Year, aMW 5-year Est. 5-year Est. aMW 10-year Est. 10-year Est. aMW
Year
2008 2007 10,008 2012 10,890 2017 11,524
2010 2009 10,555 2014 11,145 2019 11,691
2012 2011 10,265 2016 10,692 2021 11,107
2014 2013 10,166 2018 11,017 2023 11,423
2016 2015 10,099 2020 10,347 2025 10,629
2018 2017 10,231 2022 10,345 2027 10,582
2020 2019 10,307 2024 10,272 2029 10,548
2022 2021 10,202 2026 10,389 2031 10,514
Figure 3: Utility Report Time Series — Base Year and Forecast Loads with
ECM and Demand Response
13,000
12,500
12,000
11,500
aMW
11,000
10,500
10,000
9,500
Base Year 5-year Forecast 10-year Forecast
2008 2010 2012 2014 2016 2018 2020 2022
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 14
Table 6 presents the individual utility growth forecasts and the percent of load growth anticipated to be met by
energy conservation measures. For example, Benton County PUD No 1 estimates a load growth of 14.2 aMW
or 6.52% by 2031. Benton County PUD No 1 estimates 11.72 aMW of energy conservation measures by 2031,
and 82.52% of that load growth will be met by energy conservation measures (11.72 aMW/14.2 aMW=82.52%).
Several utilities (Chelan, Douglas, and Grant PUDs) are forecasting very high load growth rates over the next 10
years due to the growth of data centers, computing demand, and cryptocurrency mining. Chelan County PUD
forecasts the average base case annual growth rate for High Density Loads, Cryptocurrency Loads, and Large
Loads combined to be 31.88% for their 2023-2032 planning period. In comparison, Chelan County PUD expects
its base case residential average annual growth rate to be 1.44% and its base case commercial sector average
annual growth rate to be 1.97% during the same planning period.12 As a result of data center proliferation and
the growth of computing demand, especially artificial intelligence, Douglas PUD will experience significant
increases in new data loads in the next several years as well. By 2029, new data load will increase from 22% of
2024 load to 58% of 2029 energy load.13 For Grant County PUD, over the past the decade, industrial class load
growth has made up an ever-increasing portion of their total retail load, and data centers have grown to
dominate load growth in that sector.14
Table 6: Individual Utility Load Forecasts With and Without Conservation
Utility Name Load Growth with No Conservation % of Load Growth Met by Conservation
5-year Change % 10-year Change % 5-year Conservation 10-year Conservation
Alder Mutual Light Co, Inc -2.91% -2.91% -5.12% -5.12%
Asotin County PUD No 1 -0.22% 2.27% 0.00% 0.00%
Avista Corp 1.76% 2.65% 275.00% 372.22%
Benton County PUD No 1 2.21% 6.52% 108.46% 82.52%
Benton Rural Electric Assn -9.18% -8.28% -9.40% -10.43%
Big Bend Electric Coop, Inc -4.62% -2.39% -10.24% -19.81%
Blaine City Public Works 0.49% 1.14% #N/A #N/A
Centralia City Light 2.64% 2.65% #N/A #N/A
Chelan County PUD No 1 16.38% 22.25% 16.69% 31.12%
Chewelah Electric Dept 2.94% 2.96% 8.33% 8.29%
City of Cheney Light Dept 15.93% 22.63% #N/A #N/A
City of Coulee Dam Light Dept 4.84% 7.27% 14.76% 9.82%
City of McCleary Public Utility 3.85% 7.20% 2.11% 1.13%
City of Milton Electric Division -0.27% -0.07% -44.63% -178.78%
City of Sumas Electric Services 4.77% 2.28% 2.34% 4.88%
Clallam County PUD No 1 0.31% 0.32% 257.00% 251.45%
Clark County PUD No 1 4.65% 18.40% #N/A #N/A
Columbia Rural Elec Assn, Inc 2.80% 5.78% #N/A #N/A
12 Chelan County PUD. (2023, p. 15-16). Integrated Resource Plan Progress Report. Retrieved from
https://www.chelanpud.org/docs/default-source/default-document-library/irp-2023-book.pdf
13
Douglas PUD. (2024, p. 14, 21-23). Integrated Resource Plan. Retrieved from https://douglaspud.org/wp-
content/uploads/2024/02/2024-Draft-IRP.pdf
14 Grant County PUD. (2022, p.25). Integrated Resource Plan. Retrieved from
https://www.grantpud.org/templates/galaxy/images/Exhibit_A_2022_Integrated_Resource_Plan.pdf
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 15
Utility Name Load Growth with No Conservation % of Load Growth Met by Conservation
5-year Change % 10-year Change % 5-year Conservation 10-year Conservation
Consolidated Irrigation District No 19 -29.94% -29.94% #N/A #N/A
Cowlitz County PUD No 1 13.04% 20.26% #N/A #N/A
Douglas County PUD No 1 21.07% 36.99% 6.66% 8.53%
Eatonville Power & Light Dept 0.73% 1.39% 58.19% 30.61%
Ellensburg Energy Services Dept 1.20% 2.74% 3.49% 1.53%
Elmhurst Mutual Power & Light Co 1.65% 3.66% 33.86% 15.26%
Ferry County PUD No 1 -9.17% -8.26% -2.75% -3.05%
Franklin County PUD No 1 29.74% 33.72% #N/A #N/A
Grant County PUD No 2 28.53% 44.52% 4.53% 6.47%
Grays Harbor County PUD No 1 -2.27% -3.79% -22.00% -18.00%
Inland Power & Light Company 10.41% 21.90% 2.72% 2.93%
Jefferson County PUD No 1 2.49% 4.11% 23.00% 13.94%
Kalispel Tribal Utilities 20.05% 27.45% 0.00% 0.00%
Kittitas County PUD No 1 2.99% 8.03% 19.96% 7.43%
Klickitat County PUD No 1 4.77% 11.31% #N/A #N/A
Lakeview Light & Power 1.21% 2.23% 65.56% 35.63%
Lewis County PUD No 1 4.49% 7.69% 52.04% 96.94%
Mason County PUD No 1 -2.16% -0.28% -6.06% -47.36%
Mason County PUD No 3 9.77% 16.92% 15.20% 24.96%
Modern Electric Water Company 0.74% 2.93% 157.74% 39.88%
Nespelem Valley Elec Coop, Inc -0.07% 0.66% -252.67% 27.55%
Ohop Mutual Light Company, Inc -0.59% -0.59% -3.15% -3.15%
Okanogan County Elec Coop, Inc 3.95% 16.38% #N/A #N/A
Okanogan County PUD No 1 1.05% 3.60% 0.00% 0.00%
Orcas Power & Light Coop 0.67% 4.08% 25.57% 4.18%
Pacific County PUD No 2 7.18% 10.22% 38.46% 24.32%
PacifiCorp 3.46% 9.07% 206.79% 139.63%
Parkland Light & Water Company -0.09% 0.93% -320.63% 29.33%
Pend Oreille County PUD No 1 3.75% 11.77% #N/A #N/A
Peninsula Light Company -5.20% -4.78% -13.26% -28.82%
Port Angeles City Light -1.36% -1.36% -7.12% -7.12%
Port of Seattle 6.66% 6.66% 15.93% 15.93%
Puget Sound Energy, Inc 5.88% 12.80% 144.90% 130.31%
Richland Energy Services 0.77% 1.77% 388.37% 504.04%
Seattle City Light 0.47% 2.99% 960.00% 265.63%
Skamania County PUD No 1 -4.08% -2.15% -0.88% -1.68%
Snohomish County PUD No 1 1.87% 5.16% 183.80% 189.06%
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 16
Utility Name Load Growth with No Conservation % of Load Growth Met by Conservation
5-year Change % 10-year Change % 5-year Conservation 10-year Conservation
Steilacoom Public Works -0.12% 2.30% -10.97% 5.62%
Tacoma Power 1.51% -3.70% 150.62% -129.65%
Tanner Electric Coop 0.42% 3.19% 18.37% 2.44%
Town of Ruston Utility Dept 1.85% -3.70% #N/A #N/A
Vera Irrigation District #15 -3.23% -0.78% -3.36% -13.84%
Wahkiakum County PUD No 1 -1.96% -0.50% -1.89% -7.46%
Whatcom County PUD No 1 14.43% 13.19% 0.00% 0.00%
The current round of utility resource plans indicates a continued reliance on energy conservation measures as
the primary resource for balancing electricity supply and demand. The statewide aggregate growth in
electricity demand is expected to be moderate with an average load growth of 3.15% over the five-year
forecast and 6.16% over the 10-year forecast without conservation. The load growth projections may be
conservative for 2022 because some of the utility resource plan results do not fully account for the impacts of
climate change or new policies passed after 2021. Several utilities (Avista, Benton PUD, Seattle City Light,
PacifiCorp and Puget Sound Energy) project that their energy conservation programs will result in more
electricity savings than their projected amount of load growth. These utilities expect to experience negative
growth in observed electric loads. With the majority of load growth met by energy conservation programs, new
renewable resources primarily serve to replace retiring coal-fired generation and thermal natural gas
generation.
Overgeneration
In 2013, the Legislature amended the resource planning statute to address concerns about the potential for
“overgeneration” events.15 The legislation required that utilities consider this potential in their planning “if
applicable to the utility's resource portfolio,” and required that Commerce include in this report an assessment
of utility approaches to overgeneration.
The statute defines an overgeneration event as:
An event within an operating period of a balancing authority when the electricity supply, including generation
from intermittent renewable resources, exceeds the demand for electricity for that utility's energy delivery
obligations and when there is a negatively priced regional market.
Overgeneration is also referred to as oversupply, and the consequence is generation curtailment. It might
occur when high river flows and high wind volumes coincide. It might also occur when the hours of solar
generation misaligns with peak electricity demand. The capacity of the hydroelectric system to store extra river
flow is limited, and even the option of spilling water over the dams is restricted by fish mortality concerns. In
these circumstances, the regional power system may have more electric generation from hydroelectric, wind,
and solar resources than what is required to meet regional loads and export opportunities.
15 Section 19.280.060, Department's duties—Report to the legislature. (2022, June 29). Retrieved from Revised Code of Washington:
https://app.leg.wa.gov/RCW/default.aspx?cite=19.280.060
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 17
Since 2013, the Bonneville Power Administration has adopted an Oversupply Management Protocol, providing
tools for the operators of the hydroelectric system and transmission grid to manage oversupply situations. 16
The implementation of this protocol has generally shifted the overgeneration issue from a planning concern to
an operational concern.
In many cases, utilities did not find it necessary in their 2020-2022 resource plans to address overgeneration,
or generation curtailment, as an issue separate from the more general assessment of generating resource
alternatives.
Resource adequacy
Most utilities plan to meet load requirements in the lowest-cost, least-risk way by renewing BPA contracts (for
slice or block products or shifting to a load following product), maximizing energy conservation measures, and
implementing new demand response programs. Many consumer-owned utilities already have 80% or more
renewable electric generation, and they plan to comply with CETA requirements between 2030 and 2045 using
renewable energy credits.17 With increased demand for renewables, some utilities, such as Clark PUD and
Seattle City Light, have requested 100% clean block products from BPA. Some utilities, such as Centralia City
Light, would like BPA to find a way to eliminate unspecified power purchases; otherwise, they would have to
purchase renewable energy credits to cover the unspecified purchases by BPA to comply with CETA.18
Other strategies utilities reported considering include:
• Developing the Western Resource Adequacy Program
• Investigating dispatchable, renewable and non-emitting resources such as batteries, hydrogen,
geothermal, and small modular nuclear reactors
• Diversifying the geographic location of their renewable resources
• Utilities reported transmission constraints as a key constraint to accessing cheap renewable
resources.
There has been significant progress in the development of a Resource Adequacy Program; however, significant
work remains in developing the Western Resource Adequacy Program. Grant PUD explains: "[T]he Western
Resource Adequacy Program (WRAP), aims to set regional standards for planning methods and metrics,
provide load and resource diversity savings, and establish a robust procurement process... There are many
challenges that will need to be overcome for establishing a Resource Adequacy program unique to the
Northwest, including the lack of an organized market administrator, the large number of consumer-owned
utilities, the significant amount of hydropower resources and the size and role of Bonneville Power
Administration (BPA). In addition, questions remain on how WRAP might coexist with energy imbalance and
day-ahead markets."19
16 Oversupply. (n.d.). Retrieved from Bonneville Power Administration: https://www.bpa.gov/energy-and-
services/transmission/oversupply
17 Section 19.405.040(1) states that it is the policy of the state that all retail sales be greenhouse gas neutral by January 1, 2030, and
that through December 31, 2044, an electric utilities may satisfy up to 20% of its compliance obligation using an alternative compliance
option, such as unbundled renewable energy credits.
18
Centralia City Light. (2022, p.34). 2022 Electric Utility Resource Plan Update. Retrieved from
https://cityofcentralia.com/DocumentCenter/View/1938/2022-Electric-Utility-Resource-Plan-PDF?bidId=
19 Grant Public Utility District. (2022, p.32). Integrated Resource Plan. Retrieved from
https://www.grantpud.org/templates/galaxy/images/Exhibit_A_2022_Integrated_Resource_Plan.pdf
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 18
Regional resource forecasts
PNUCC 2022 Northwest Regional Forecast
The Pacific Northwest Utilities Conference Committee (PNUCC) is an electric utility association that compiles
information on expected loads and resources of electric utilities in the Pacific Northwest. It includes the loads
and resources of Washington utilities along with those of utilities in Oregon, Idaho and Montana.20 Washington
state is the largest state in the Northwest Regional Planning Area which is the area defined by the Pacific
Northwest Electric Power Planning and Conservation Act.
The 2022 Northwest Regional Forecast (through 2032) highlighted three key themes:
A significant transition from thermal generation to clean energy resources is underway in the Pacific
Northwest and the rest of the Western Interconnection, with coal plant retirements and increasing adoption
of variable clean energy resources. The transition in the Pacific Northwest in large part due to
Washington's Clean Energy Transformation Act and Oregon's Renewable Porfolio Standard.21
A variety of new policies that promote electrification such as Washington's Climate Commitment Act,
Washington State's new building code standards, and Oregon's Climate Change Executive Order 20-40 are
contributing to the challenges of electricity demand forecasting. The shift to a more variable clean power
supply coinciding with growth in electricity demand due to electrification results in a growing need to
address resource adequacy issues and increasing winter and summer peak deficits.
Continued robust energy efficiency acquisition efforts and new demand response efforts by Northwest
utilities.
The report concluded that more regional utilities are expecting modest growth in retail loads through the
forecast period compared to the previous year. Load growth is largely coming from new industrial loads that
include server farms and a growing population in eastern Washington, Idaho, and western Montana. The load
growth is diminished due to energy efficiency programs, as well as energy codes and standards. However,
estimates of load growth may be conservative because many utilities are only just beginning to examine the
implications of electrification and climate change in their load forecasts. In PNUCC's request for data, utilities
representing just over 25% of load indicated that they factored in climate change, and utilities making up 30%
of regional load are directly accounting for some electrification.22 The inclusion of electrification in load
forecasts will increase load estimates, and the inclusion of climate change impacts will increase summer load
estimates while decreasing winter supply estimates.
PNUCC highlights winter-peaking requirements as a continuing concern. Additionally, as shown in
20 Pacific Northwest Utilities Conference Committee. (2022). Northwest Regional Forecast of Power Loads and Resources 2022
through 2032. Retrieved from https://www.pnucc.org/wp-content/uploads/2022-PNUCC-Northwest-Regional-Forecast-final.pdf
21
Idaho and Montana do not have any renewable portfolio standards. Montana's renewable portfolio standard of fifteen percent
renewable energy by 2015 was repealed in 2021. Source: State Renewable Portfolio Standards and Goals. (2021). Retrieved from
National Conference of State Legislatures: https://www.ncsl.org/energy/state-renewable-portfolio-standards-and-goals
22 (Pacific Northwest Utilities Conference Committee, 2022, p. 6)
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 19
Figure 4, the summer peak deficit is widening to nearly match the expected winter peak deficit in the future.
The region’s projected peak demand is projected to exceed utilities’ firm resources in every year of the
planning period. The supply of winter peaking and summer peaking resources does not include out-of-region
imports, the capacity of independent power projects within the Northwest or hydroelectric system capacity in
excess of critical water conditions.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 20
Figure 4: Northwest Utilities Peak Capacity Load/Resource
Source: Pacific Northwest Utilities Conference Committee
The compiled results from PNUCC indicate that the Northwest utilities collectively expect to have surplus
energy resources for the 2022-23 operating years on an annual energy basis. The regional forecast shows an
energy deficit starting in 2023-2024 (19 aMW) and continuing to grow through the end of the 10-year planning
period (3,790 aMW). Much of the deficit is the result of the retirement of coal plants. Just over 2,100 MW of
coal have already retired in the Northwest, with more to come. And by 2025, two coal plants23 (almost 1,100
MW) will be converted to natural gas-fired generation.24
According to PNUCC, Northwest utilities made capacity additions of 58 MW in 2019 and are committed to
adding nearly 1,647 MW of capacity from 2020 through 2025 -- primarily wind, solar, battery projects with one
natural gas plant. PNUCC identifies a larger amount of planned resources in the region. Planned resources
through 2032 are estimated at 9,447 MW of capacity and include 3,385 MW of wind, 2,130 MW of standalone
solar, 2,541 MW of solar capacity with battery storage, as well as over 2,000 MW of dispatchable resources,
such as natural gas and storage (for peak demand). However, they are not included in the forecast because
they have less certainty from a financial or regulatory standpoint.
23 PacifiCorp is converting Jim Bridger 1 and 2 in Wyoming to natural gas in order to keep operating them while complying with federal
regional haze requirements. Source: NewsData. (2023, August 25). PacifiCorp Coal Units Set for Conversion to Natural Gas This Fall.
Retrieved from https://www.newsdata.com/clearing_up/supply_and_demand/pacificorp-coal-units-set-for-conversion-to-natural-gas-
this-fall/article_9802600e-435f-11ee-9dba-a3fe639f5da2.html
24 (Pacific Northwest Utilities Conference Committee, 2022, p. 4)
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 21
Pacific Northwest Power Supply Adequacy Assessment for 2027
The Northwest Power and Conservation Council , which is the region’s premier power planning body, evaluated
the adequacy of the Northwest electric power supply in 2023 and concluded that the 2027 regional power
supply would be adequate if the region's utilities add the resources identified in the Council's most recent
regional power plan. Power supply would not be adequate if the region relied solely on existing resources,
existing reserve levels, and no new energy efficiency measures.
Traditionally, resource adequacy was assessed through the loss of load probability metric which is limited to
5%. However, this metric fails to indicate the shortfall magnitude, duration, or frequency. To better assess
customer risk, the Council examined additional metrics and proposed standards for each one. These metrics
are loss of load events (LOLEV), duration value at risk (VaR Duration), and peak (VaR Peak) and energy value at
risk (VaR Energy).25 If demand growth remains consistent with the plan's baseline forecast, then the power
supply would be adequate with resources and reserves identified in the 2021 Power Plan's resource strategy.
However, if future electricity market supplies are significantly limited, if new policy commitments to
electrification accelerate demand growth, or if major coal resources are retired earlier than expected without
replacement, then additional resources and reserves will be required to maintain system adequacy. More work
needs to be done to understand how the average load increase in the regional load forecast compare to the
actual expected load growth driven by new policies implemented since the adoption of the 2021 Power Plan.
Given the passage of recent electrification policies and recent global instability, the current resource strategy
may be inadequate to ensure resource adequacy and reliability in 2027 based on the estimates of resource
adequacy metrics.
This assessment also found that the 2021 Power Plan resource strategy is effective at eliminating nearly all
summer shortfalls, when resource needs peak in the rest of the Western Interconnection (outside of the Pacific
Northwest region).26 Implementing the strategy does not eliminate winter shortfall events, but it does mitigate
them by reducing shortfall event magnitude and shortening event duration to only a few hours during the
morning and evening ramps.27 New clean energy policies will result in market supply and demand dynamic
changes because the hours of renewable generation will not always coincide with the hourly pattern of
greatest energy need. Under the limited markets and high Western Electricity Coordinating Council (WECC)
interconnection demand scenarios, summer market imports decrease in the morning and summer evening
imports are eliminated. Under the limited markets and high WECC demand scenarios, the winter morning ramp
period has increased imports. Transmission limitations within the Western grid may have a larger influence on
market dynamics, as it may not be adequate to meet the import needs of California and Canada under certain
scenarios.
25 Northwest Power and Conservation Council. (2023, p.4). Pacific Northwest Power Supply Adequacy Assessment for 2027. Retrieved
from https://www.nwcouncil.org/reports/2023-1/
26
(Northwest Power and Conservation Council, 2023, p. 5). The Northwest Power Plan applies to the Pacific Northwest states
(Washington, Oregon, Idaho, and Montana). The interconnected Western power grid encompasses 14 states, two Canadian provinces,
and a portion of Mexico.
27 (Northwest Power and Conservation Council, 2023, p. 29)
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 22
2022 Western Assessment of Resource Adequacy28
The WECC is a regional entity with authority delegated under the Federal Power Act to ensure a reliable and
secure bulk power system in the Western Interconnection. As the only independent, interconnection-wide
organization in the West, WECC creates and enforces reliability standards.
The Western Assessment of Resource Adequacy provides assessments for the Western Interconnection and
five subregions. Washington is part of the Northwest Power Pool subregion. Over the next decade, entities will
retire nearly 26 GW of resources, mostly coal and natural gas, while building close to 80 GW of new generation
and energy storage resources, three-quarters of which will be solar, wind, and battery storage. The resource
mix in 2032 will be very different and highly variable. This is because solar and wind resources have constantly
changing energy outputs and limited dispatchability. Additionally, it is uncertain how electrification, energy
efficiency, and new technologies will affect demand over the next decade. The assessment shows some near-
term reduction in resource adequacy risk, but WECC foresees an increasing risk over the next 10 years. Not
only is resource adequacy risk growing, but it is spreading throughout beyond the peak load seasons.
WECC uses two measures of resource adequacy: demand-at-risk indicator and planning reserve margin
indicator. The demand-at risk indicator (DRI) is the number of hours in a year when demand is at risk. Planning
reserve margin indicator (PRMI) is a measure of variability on the system. WECC presents major findings and
recommendations to manage resource adequacy risks:
The increase in PRMI indicates that entities may need to plan for more reserves or take other actions to
account for the increased variability. Mitigation actions could include adding dispatchable resources;
increasing demand management measures; participating in subregional cooperative efforts; supporting the
research and development of new technology; and improving coordination of transmission planning and
operation.
New challenges like supply chain disruption, skilled workforce shortages, and siting issues may impede
or delay the build-out of new resources. WECC recommends resource plans should include contingency
plans to manage the risk of impediments to building planned resources. State commissions and regulatory
bodies should continue to scrutinize integrated resource plans to ensure that utilities are planning for the
increased risks.
All subregions rely on imports to help be resource adequate; however, the risk of wide-spread variability
could create situations where the imports that entities depend on are not available. WECC recommends
that the Western Interconnection evaluate resource and transmission adequacy in a coordinated fashion
through comprehensive wide-area system planning.
Uncertainty about future impacts to demand of electrification, energy efficiency, new technology, and
other factors creates difficulties for load forecasting. WECC recommends that some entities will need to
evaluate and adapt their resource planning approaches to account for increased future uncertainty.
28 Western Electricity Coordinating Council. (2022). Western Assessment of Resource Adequacy. Retrieved from
https://www.wecc.org/Reliability/2022%20Western%20Assessment%20of%20Resource%20Adequacy.pdf
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 23
Appendix A: Utility Cover Sheets
Washington Electric Utility Loads and Resources Estimates reported to the Department of Commerce in 2022
Avista Utilities
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Mike Hermanson
Base 5 Year 10 Year
Year Estimate Estimate
Estimate Year 2022 2027 2032
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 1,086.00 1,019.00 680.00 1,135.00 1,037.00 692.00 1,186.00 1,056.00 698.00
Exports 36.00 5.00 19.00 0.00 0.00 0.00 0.00 0.00 0.00
Resources:
Future
Conservation/Efficiency 34.00 38.00 33.00 70.00 75.00 67.00
Demand Response 23.00 23.00 26.00 25.00
Cogeneration
Hydro 773.00 748.00 371.00 720.00 696.00 351.00 711.00 639.00 344.00
Wind 8.00 8.00 60.00 75.00 75.00 151.00 103.00 106.00 196.00
Other Renewables 31.00 37.00 31.00 31.00 37.00 31.00 31.00 37.00 31.00
Thermal - Natural Gas 576.00 478.00 425.00 483.00 403.00 370.00 483.00 403.00 370.00
Thermal - Coal 222.00 222.00 222.00 0.00 0.00 0.00 0.00 0.00 0.00
Net Long Term Contracts 26.00 22.00 25.00 26.00 22.00 25.00 26.00 22.00 25.00
Net Short Term Contracts
BPA
Other
Imports
Distributed Generation
Undecided
Total Resources 1,636.00 1,515.00 1,134.00 1,392.00 1,294.00 961.00 1,450.00 1,307.00 1,033.00
Load Resource Balance 514.00 491.00 435.00 257.00 257.00 269.00 264.00 251.00 335.00
Date of Board/Commission Approval: N/A
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Loads are 1 in 2 expected values and do not include any consideration of planning margin. Reported loads and resources represent the Washington
share of Avista's system. Resources include new resource selection in 2027 of 100 MW of NG CT new facilities and upgrades, 67 MW of wind, and 23
MW of DR. New Resources in addition to those selected in 2027 include 3 additional MW of DR, 44 MW of hydro, and an additional 28 MW of wind.
These resource selections provide a resource balance commensurate with Avista planning parameters.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 24
PUD No. 1 of Chelan County
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Becky Keating
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2020 2025 2030
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 446.00 243.00 204.50 522.93 274.73 238.00 547.16 289.01 250.00
Exports
Resources:
Future Conservation/Efficiency 11.93 6.73 5.59 30.16 17.01 14.16
Demand Response
Cogeneration
Hydro 419.00 220.00 189.00 770.00 386.00 338.00 1,227.00 603.00 532.00
Wind 0.37 0.33 2.58 1.38 0.76 2.25 1.38 0.76 2.25
Other Renewables
Thermal - Natural Gas
Thermal - Coal
Net Long Term Contracts
Net Short Term Contracts
BPA
Other
Imports
Distributed Generation
Undecided
Total Resources 419.37 220.33 191.58 783.31 393.49 345.84 1,258.54 620.77 548.41
Load Resource Balance -26.63 -22.67 -12.92 260.38 118.76 107.84 711.38 331.76 298.41
Date of Board/Commission Approval: December 21
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Appendix B in Chelan PUD's IRP includes this cover sheet with supplemental information on loads and resources.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 25
Clark Public Utilities
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Steve Andersen
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 967.96 1,016.20 553.68 1,024.00 579.41 1,331.00 655.58
Exports
Resources:
Future Conservation/Efficiency
Demand Response
Cogeneration
Hydro 5.00 5.00 1.75 80.00 51.74 80.00 51.74
Wind 6.00 0.00 16.31 9.00 18.13 9.00 18.00
Other Renewables
Thermal - Natural Gas 255.40 203.80 221.80 265.00 227.16 265.00 102.00
Thermal - Coal
Net Long Term Contracts
Net Short Term Contracts 200.56 473.40 72.00
BPA 506.00 340.00 323.74 554.00 363.96 762.00 500.48
Other 4.00 4.18 5.00 4.72
Imports
Distributed Generation
Undecided
Total Resources 972.96 1,022.20 635.59 912.00 0.00 665.17 1,121.00 0.00 676.94
Load Resource Balance 5.00 6.00 81.91 -112.00 0.00 85.76 -210.00 0.00 21.36
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 10: Historic 2021 actual winter and summer peak demands and annual energy. Projected 2026 and 2031 winter peak demands and annual energy.
A summer peak demand forecast is not included in the IRP update. Line 16: Hydro includes the Packwood Hydroelectric Project (CPU receives an 18%
share of project generation) and a future Power Purchase Agreement
Line 17: Wind is the Combine Hills II Wind Project (CPU receives 100% of project generation)
Line 19: Natural Gas is the River Road Generating Plant
Line 21: Net Short Term Contracts includes all historic market purchases
Line 24: Other is future market balancing purchases
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 26
Cowlitz PUD
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: TEA
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 725.03 608.54 515.24 893.34 780.77 582.41 977.36 846.58 619.63
Exports
Resources:
Future Conservation/Efficiency
Demand Response
Cogeneration
Hydro 76.20 78.50 24.49 79.00 79.00 15.80 79.00 79.00 15.80
Wind 0.82 1.04 40.01 0.00 0.00 34.71 0.00 0.00 0.00
Other Renewables
Thermal - Natural Gas
Thermal - Coal
Net Long Term Contracts
Net Short Term Contracts 212.68 173.87 340.84 193.81 61.89
BPA 776.00 614.00 455.06 601.66 527.90 541.70 557.52 573.77 541.94
Other
Imports
Distributed Generation
Undecided
Total Resources 853.02 693.54 519.56 893.34 780.77 592.21 977.36 846.58 619.63
Load Resource Balance 127.99 85.00 4.32 0.00 0.00 9.80 0.00 0.00 0.00
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 10: Base year seasonal peak loads are not weather adjusted. Actual summer peak occurred: 8/11/21 HE 19 Actual winter peak occurred: 12/27/21
HE 18; Annual average load is weather normalized
Line 13: Loads were forecasted using regression methodology that captured conservation effects and trends, therefore conservation is not captured as
a separate line item
Line 16: Hydro resources include Swift No. 2, Wanapum, and Priest Rapids, Winter and Summer values represent actual average peak generation and
the Annual value reflects the yearly average
Line 17: Wind resources include White Creek Wind, Nine Canyon Wind, and Harvest Wind--Peak MW represent wind actuals on winter and summer load
peaks
Line 22 (Net Short Term Contracts): Future energy and capacity beyond the District portfolio will continue to be supplemented with market purchases on
a short-term basis.
Line 23: Winter and Summer values for 2021 represent the maximum peak slice + block BPA power and the Annual value is based on actual average
slice + block, for 2026 and 2031 critical water assumptions were used for the federal system, the deficits resulting from the critical water assumptions
are captured in the Net Short Term Contracts (line 22) and would be purchased from the market.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 27
Public Utility District No. 1 of Douglas County
Washington State Utility Integrated Resource Plan Year 2020 2022
Prepared by: Jeff Johnson
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 239.00 179.00 142.56 289.40 209.20 172.60 319.50 226.50 195.30
Exports
Resources:
Future Conservation/Efficiency 2.00 2.00 2.00 4.50 4.50 4.50
Demand Response 5.00 5.00 1.00 10.00 10.00 2.00
Cogeneration
Hydro 355.50 227.30 181.50 444.00 339.00 268.00 452.00 434.00 323.00
Wind 10.00 10.00 2.29 10.00 10.00 2.95 10.00 10.00 2.95
Other Renewables
Thermal - Natural Gas
Thermal - Coal
Net Long Term Contracts 47.00 47.00 47.00
Net Short Term Contracts
BPA
Other
Imports
Distributed Generation
Undecided
Total Resources 412.50 284.30 230.79 461.00 356.00 273.95 476.50 458.50 332.45
Load Resource Balance 173.50 105.30 88.23 171.60 146.80 101.35 157.00 232.00 137.15
Date of Board/Commission Approval: September 22
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 28
Public Utility District No. 2 of Grant County
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Lisa Stites
Base 5 Year 10 Year
Year Estimate Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 833.57 929.18 639.33 1,008.99 1,146.55 821.73 1,134.57 1,289.25 923.95
Exports
Resources:
Future
Conservation/Efficiency 8.14 8.40 8.27 17.91 18.91 18.41
Demand Response
Cogeneration
Hydro 114.46 124.00 117.74 1,089.19 1,011.29 628.70 1,142.00 1,059.18 638.90
Wind 0.93 1.56 3.52 8.74 12.85 50.10 7.80 10.47 46.82
Other Renewables 62.95 82.30 93.85 114.40 149.41 210.57
Thermal - Natural Gas 198.00 198.00 11.51 270.00 270.00 5.91
Thermal - Coal
Net Long Term Contracts 702.73 788.18 401.59
Net Short Term Contracts 110.57 23.90 -2.06
BPA 15.44 15.44 5.90 15.44 15.44 5.40 15.44 15.44 5.40
Other
Imports
Distributed Generation
Undecided
Total Resources 833.57 929.18 639.33 1,382.46 1,328.28 821.73 1,567.55 1,523.41 923.96
Load Resource Balance 0.00 0.00 0.00 373.47 181.73 0.00 432.98 234.16 0.00
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 10: Base year load is actual load for 2021
Line 18: Our other renewables includes both stand-alone solar PV and solar PV+battery hybrids
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 29
Lewis County PUD 1
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Luke Canfield
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 213.08 148.36 114.63 239.34 154.40 119.78 239.34 158.35 123.45
Exports
Resources:
Future Conservation/Efficiency 4.30 2.60 2.68 14.40 9.50 8.55
Demand Response
Cogeneration
Hydro 5.12 4.52 1.19 5.12 4.52 1.19 5.12 4.52 1.19
Wind 1.80 1.40 1.60 1.80 1.40 1.60 1.80 1.40 1.60
Other Renewables
Thermal - Natural Gas
Thermal - Coal
Net Long Term Contracts
Net Short Term Contracts
BPA 142.00 111.40 114.60 151.22 118.88 120.89 156.63 117.75 126.04
Other
Imports
Distributed Generation
Undecided
Total Resources 148.92 117.32 117.39 162.44 127.40 126.36 177.95 133.17 137.38
Load Resource Balance -64.16 -31.04 2.76 -76.90 -27.00 6.58 -61.39 -25.18 13.93
Date of Board/Commission Approval: September 22
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 30
Grays Harbor PUD
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Shailesh Shere
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 235.00 143.00 132.00 224.00 138.00 129.00 219.00 136.00 127.00
Exports
Resources:
Future Conservation/Efficiency 0.66 0.90
Demand Response
Cogeneration 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00 13.00
Hydro
Wind 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00
Other Renewables
Thermal - Natural Gas 45.00 45.00 45.00
Thermal - Coal
Net Long Term Contracts
Net Short Term Contracts
BPA 170.00 129.00 135.70 170.00 129.00 135.00 170.00 129.00 135.00
Other
Imports
Distributed Generation
Undecided
Total Resources 236.00 195.00 201.70 191.00 150.00 156.66 191.00 150.00 156.90
Load Resource Balance 1.00 52.00 69.70 -33.00 12.00 27.66 -28.00 14.00 29.90
Date of Board/Commission Approval: September 6
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 13: Annual data from 2021 Conservation Potential Assessment.
Lines 15 and 17: Assumption Resource Power Contract's will be extended.
Line 23: Assumption we will purchase similar product to the current Slice/Regional Dialogue contract. Current contract expires 9/30/2028.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 31
PacifiCorp
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Brian Osborn
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2022 2027 2032
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 699.25 716.34 528.18 767.83 802.04 546.43 803.37 822.11 576.08
Exports 33.23 35.17 6.33 26.60 29.78 3.19 26.63 27.87 3.15
Resources:
Future Conservation/Efficiency 30.96 74.95 37.74 47.94 120.30 66.88
Demand Response 50.20 61.53 10.75 28.92 27.94 11.32
Cogeneration
Hydro 91.97 78.57 45.97 73.08 63.83 34.11 70.45 63.12 33.54
Wind 25.31 31.44 103.14 48.75 69.02 166.77 49.99 51.50 177.20
Other Renewables 8.26 31.94 46.61 6.39 48.50 99.45 5.63 11.31 178.56
Thermal - Natural Gas 218.67 192.50 102.65 213.81 187.26 98.54 190.33 172.98 98.88
Thermal - Coal 405.91 372.08 256.54 341.72 318.50 155.81 262.73 256.08 67.31
Net Long Term Contracts 0.00 0.00 6.98 0.00 0.00 0.10 0.00 0.00 0.10
Net Short Term Contracts 49.61 114.11 23.08 0.00 0.00 28.46 0.00 0.00 35.98
BPA
Other 19.98 26.41 -1.40 108.16 108.68 2.71 238.77 234.65 35.35
Imports 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Distributed Generation 0.21 5.57 2.46 0.71 7.45 3.54 1.25 14.58 6.83
Undecided
Total Resources 819.93 852.63 586.04 873.76 939.73 637.98 896.01 952.44 711.95
Load Resource Balance 87.44 101.11 51.53 79.33 107.92 88.35 66.01 102.46 132.72
Date of Board/Commission Approval:
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Information is based on the 2021 Update Integrated Resource Plan filed with the Washington Utilities and Transportation Commission on March 31,
2022.
The Load Resource Balance in Capacity primarily reflects the 13% Planning Reserve Margin not included in Loads.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 32
Puget Sound Energy
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Chris Schaefer
Base 5 Year 10 Year
Year Estimate Estimate
Estimate Year 2022 2027 2032
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 4,687.00 3,515.00 2,500.00 4,949.00 3,848.00 2,647.00 5,269.00 4,220.00 2,820.00
Exports 24.00 324.00 59.00 0.00 300.00 47.00 0.00 300.00 47.00
Resources:
Future Conservation/Efficiency 383.00 188.00 213.00 693.00 335.00 417.00
Demand Response 89.00 89.00 198.00 198.00
Cogeneration
Hydro 743.00 774.00 514.00 762.00 808.00 505.00 757.00 801.00 504.00
Wind 118.00 118.00 295.00 113.00 113.00 485.00 129.00 129.00 475.00
Other Renewables 28.00 28.00 52.00 28.00 28.00 52.00 27.00 27.00 52.00
Thermal - Natural Gas 2,050.00 1,689.00 1,856.00 1,689.00 2,050.00 1,856.00 2,050.00 1,689.00 1,856.00
Thermal - Coal 307.00 307.00 247.00
Net Long Term Contracts 612.00 612.00 534.00 63.00 63.00 107.00 44.00 44.00 45.00
Net Short Term Contracts 1,518.00 1,487.00 1,479.00 1,433.00 1,479.00 1,435.00 0.00
BPA
Other
Imports 303.00 303.00 50.00 303.00 303.00 50.00 303.00 303.00 50.00
Distributed Generation
Undecided
Total Resources 5,679.00 5,318.00 3,548.00 4,909.00 5,075.00 3,268.00 5,680.00 4,961.00 3,399.00
Load Resource Balance 968.00 1,479.00 989.00 -40.00 927.00 574.00 411.00 441.00 532.00
Date of Board/Commission Approval:
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 18: PSE's Other Renewables are Solar and Biomass. PSE's Integrated Resource Plan ("IRP") includes the least cost combination of conservation
and supply-side resources to meet requirements per WAC 480-100-620. This information is also available in PSE's 2021 IRP, Appendix B, page 30, filed
with the Washington Utilities and Transportation Commission ("WUTC") Docket UE-200304, filed April 20, 2021.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 33
City of Richland
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Sandi Edgemon
Base Year 5 Year Estimate 10 Year Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 189.78 211.82 111.84 194.40 193.80 112.70 199.10 198.50 113.82
Exports
Resources:
Future Conservation/Efficiency 3.34 3.34 3.34 9.98 9.98 9.98
Demand Response 0.00 0.00 0.00 0.00 0.00 0.00
Cogeneration
Hydro
Wind
Other Renewables 0.79 1.05 0.70 0.75 1.00 0.67 0.71 0.95 0.63
Thermal - Natural Gas
Thermal - Coal
Net Long Term Contracts 8.00 8.00 8.00 0.00 0.00 0 0.00 0.00 0
Net Short Term Contracts
BPA 180.99 202.77 103.63 190.31 189.46 108.69 188.41 187.57 103.21
Other
Imports
Distributed Generation
Undecided
Total Resources 189.78 211.82 112.33 194.40 193.80 112.70 199.10 198.50 113.82
Load Resource Balance 0.00 0.00 0.49 0.00 0.00 0.00 0.00 0.00 0.00
Date of Board/Commission Approval: August 20
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 34
Seattle City Light (SCL)
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Paul Nissley
Base 5 Year 10 Year
Year Estimate Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 1,072.00 1,077.00 1,104.00
Exports 25.00
Resources:
Future Conservation/Efficiency 48.00 85.00
Demand Response 20.00 14.00 89.00 53.00
Cogeneration
Hydro 719.00 742.00 733.00
Wind 41.00 95.00 95.00
Other Renewables 12.00 64.00 64.00
Thermal - Natural Gas
Thermal - Coal
Net Long Term Contracts
Net Short Term Contracts
BPA 470.00 418.00 416.00
Other 37.00 37.00 37.00
Imports 31.00
Distributed Generation 3.00 4.00
Undecided
Total Resources 0.00 0.00 1,310.00 20.00 14.00 1,407.00 89.00 53.00 1,434.00
Load Resource Balance 0.00 0.00 213.00 20.00 14.00 330.00 89.00 53.00 330.00
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 10: this row's 1072 aMW base year load is weather adjusted** (includes 3aMW OwnUse & 5.5% line loss). 2026 and 2031 load estimates don't
include conservation. Line 11: this row's Exports include Lucky Peak contract, but no contract in place after 2025. Line 16: This row represents City
Light's hydro resources and long-term hydro contracts. For purposes of 2026 & 2031 estimates, a hypothetical median hydro year was created based on
individual median months from historical period 1999 to 2020.
Line 17: this row's Stateline wind contract expires in 2021; 95 aMW new Gorge wind resources planned in 2026.
Line 18:this row's Other renewables include landfill gas and sewage treatment plant digester gas (~13aMW in 2026 & 2031) and 51 aMW planned SE OR
and/or WA utility solar by 2026.
Line 24: this row's Other includes SCL long term PPAs with BC Hydro classified as unspecified power. Line 25: this row's Imports include Lucky Peak
exchange energy. Line 26: this row's estimated incremental distributed solar generation in Seattle associated w/ customer programs.**Annual estimates
of weather normalized system load are computed by summing together the weather normalized monthly system loads. The monthly system load model
is fit using 5 years of daily observed system load and temperature data. Additional effects like day of the week, holidays, annual level shifts, and a
trigonometric seasonal component are also included to capture non-weather drivers. This isn’t an exhaustive list of explanatory variables that could
drive day-to-day changes in load, but it is sufficient to get an accurate estimate of the non-linear relationship between load and temperature which is the
crux of the weather normalization process. To model the non-linear link between system load and temperature a Multivariate Adaptive Regression Spline
(MARS) model is used to estimate a piece wise linear function. The MARS model selects break points in temperature to estimate the system response
to changes in temperature
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 35
Public Utility District #1 of Snohomish County
Washington State Utility Integrated Resource Plan Year 2022
Prepared by: Landon Snyder
5 Year 10 Year
Base Year Estimate Estimate
Estimate Year 2021 2026 2031
Period Winter Summer Annual Winter Summer Annual Winter Summer Annual
Units (MW) (MW) (MWa) (MW) (MW) (MWa) (MW) (MW) (MWa)
Loads 946.89 663.73 784.42 948.90 685.07 799.11 977.19 710.02 824.93
Exports 170.16 158.59 116.51 161.74 212.78 166.86 135.25 167.03 140.19
Resources:
Future
Conservation/Efficiency 28.77 25.58 27.00 81.22 73.43 76.59
Demand Response 4.54 0.00 1.74 25.18 0.00 9.82
Cogeneration 2.29 1.63 2.06 2.78 1.87 2.34 2.78 1.87 2.34
Hydro 99.87 34.64 59.31 89.45 40.09 62.22 94.00 37.52 63.52
Wind 48.72 67.97 56.48 28.06 54.22 41.30 0.00 0.00 0.00
Other Renewables 0.03 0.14 0.09 0.45 1.48 0.98 0.45 1.48 0.98
Thermal - Natural Gas 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Thermal - Coal 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Net Long Term Contracts 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Net Short Term Contracts 25.00 0.00 8.33 50.00 0.00 16.67 0.00 0.00 0.00
BPA 940.35 714.36 772.56 905.21 768.34 810.03 906.77 753.48 806.41
Other 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Imports 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Distributed Generation 0.79 3.58 2.10 1.38 6.27 3.69 2.04 9.27 5.46
Undecided 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Total Resources 1,117.05 822.32 900.93 1,110.64 897.85 965.97 1,112.44 877.05 965.12
Load Resource Balance 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Date of Board/Commission Approval: December 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
1. Not in the categories listed, so not in the table, Snohomish has identified a storage need of up to 70MW by 2031.
2. Snohomish plans to add 5MW of local, utility-scale solar by 2031. (Line 18)
3. Snohomish plans to offer Smart Rate programs to customers in conjunction with AMI meter rollout in the early 2020's, in order to achieve over 25MW
of peak demand reduction by 2031. (Line 14)
4. Snohomish currently plans to let existing wind contracts expire at the end of their term without renewal (line 17)
5. Snohomish plans to add winter capacity via short-term contract from 2022-2026 (line 22)
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 36
Alder Mutual Light Co.
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 0.67 0.65 0.65
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 0.55 0.55 0.55
BPA Tier 2 0.13 0.10 0.10
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 0.67 0.65 0.65
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 37
Asotin County PUD No 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 0.63 0.58 0.58
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 0.57 0.57 0.57
BPA Tier 2 0.05 0.01 0.01
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 0.63 0.58 0.58
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 38
Benton Rural Electric Association
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 71.37 64.82 65.46
Resources:
Future Conservation/Efficiency 0.62 0.62
Demand Response
BPA Tier 1 (include BPA PF) 59.34 59.66 59.66
BPA Tier 2 12.03 4.54 5.19
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 71.37 64.82 65.46
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 39
City of Centralia
Washington State Utility Resource Plan Year 2022
Prepared by: David Hayes
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2027 2032
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 31.57 32.41 32.41
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 23.98 24.37 24.37
BPA Tier 2 0.48 0.92 0.93
Non BPA:
Co-generation
Hydro (critical water) 7.11 7.11 7.11
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 31.57 32.41 32.41
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
SEE 2022 ELECTRIC UTILITY RESOURCE PLAN UPDATE
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 40
City of Cheney
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 15.82 18.34 19.40
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 14.82 18.34 19.40
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA) 1.00 0.00 0.00
Other
Distributed Generation
Undecided
Total Resources 15.82 18.34 19.40
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 41
City of Chewelah
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 2.45 2.52 2.52
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 2.45 2.51 2.51
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 2.45 2.52 2.52
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 42
Clallam County PUD No. 1
Washington State Utility Resource Plan Year 2022
Prepared by: Tyler King
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2020 2025 2030
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 77.23 77.47 77.48
Resources:
Future Conservation/Efficiency 0.62 0.62
Demand Response
BPA Tier 1 (include BPA PF) 75.62 76.03 76.03
BPA Tier 2 0.94 0.15 0.16
Non BPA:
Co-generation
Hydro (critical water) 0.67 0.67 0.67
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 77.23 77.47 77.48
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Data is reported using the Federal fiscal year (October through September). The base year is 2020 actual load. The 2025 and 2028 load forecasts are
based on 2020 weather normalized actual load applied to BPA using a flat growth rate, including mandated conservation from the Energy Independence
Act. The non-federal hydro resource "Line 17" is Clallam's share of the Packwood Lake project owned by Energy Northwest. We have current contracts
for RECs to meet the 15% Washington State Renewable Energy Portfolio Standard through 2028. The PUD is planning a Demand Response pilot project
within 5 years load shifting 0.10 aMW. The 10 year projected demand response is contingent on an estimated BPA demand rate, with the pilot project
saving 0.80 aMW.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 43
Columbia REA
Washington State Utility Resource Plan Year 2022
Prepared by: Jim Cooper
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 42.54 43.73 45.00
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 37.85 37.57 43.93
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water) 1.07 1.07 1.07
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA) 3.62 5.09 0.00
Other
Distributed Generation
Undecided
Total Resources 42.54 43.73 45.00
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval: October 23
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 44
Consolidated Irrigation District
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 0.31 0.22 0.22
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 0.23 0.22 0.22
BPA Tier 2 0.08
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 0.31 0.22 0.22
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 45
Town of Coulee Dam
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 1.96 2.05 2.10
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 1.96 2.02 2.02
BPA Tier 2 0.02 0.07
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 1.96 2.05 2.10
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval:
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 46
Town of Eatonville
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 3.29 3.31 3.33
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 3.29 3.30 3.32
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 3.29 3.31 3.33
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 47
City of Ellensburg
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 23.89 24.18 24.55
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 23.89 23.98 23.98
BPA Tier 2 0.19 0.55
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 23.89 24.18 24.55
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 48
Elmhurst Mutual Power & Light Company
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 32.62 33.16 33.81
Resources:
Future Conservation/Efficiency 0.18 0.18
Demand Response
BPA Tier 1 (include BPA PF) 32.24 32.24 32.24
BPA Tier 2 0.38 0.74 1.39
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 32.62 33.16 33.81
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 49
Ferry County PUD No 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 9.12 8.28 8.37
Resources:
Future Conservation/Efficiency 0.02 0.02
Demand Response
BPA Tier 1 (include BPA PF) 9.12 8.26 8.34
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 9.12 8.28 8.37
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 50
Jefferson County PUD No 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 45.20 46.33 47.06
Resources:
Future Conservation/Efficiency 0.26 0.26
Demand Response
BPA Tier 1 (include BPA PF) 45.17 45.17 45.17
BPA Tier 2 0.03 0.90 1.63
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 45.20 46.33 47.06
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 51
Inland Power & Light
Washington State Utility Resource Plan Year 2022
Prepared by: Brian Hess
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 127.53 140.80 155.46
Resources:
Future Conservation/Efficiency 0.36 0.82
Demand Response
BPA Tier 1 (include BPA PF) 104.89 104.89 120.70
BPA Tier 2 12.37 35.55 33.94
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA) 10.27 0.00 0.00
Other
Distributed Generation
Undecided
Total Resources 127.53 140.80 155.46
Load Resource Balance 0.00 0.00 0.00
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Starting in 2025, Inland Power & Light will supply all needed resources from BPA and transition away from any market purchases in order to better
comply with CETA obligations.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 52
Kalispel Indian Community of the Kalispel Reservation
Washington State Utility Resource Plan Year 2002
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 3.44 4.13 4.38
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 3.44 4.07 4.07
BPA Tier 2 0.06 0.31
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 3.44 4.13 4.38
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 53
Kittitas County PUD No. 1
Washington State Utility Resource Plan Year 2022
Prepared by: EES Consulting
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 13.75 14.15 14.84
Resources:
Future Conservation/Efficiency 0.08 0.08
Demand Response
BPA Tier 1 (include BPA PF) 9.70 9.70 9.70
BPA Tier 2 2.74 2.79 3.20
Non BPA:
Co-generation
Hydro (critical water) 0.98 0.98 0.98
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation 0.33 0.60 0.88
Undecided
Total Resources 13.75 14.15 14.84
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval: November 22
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 54
Public Utility District No. 1 of Klickitat County
Washington State Utility Resource Plan Year 2022
Prepared by: Mike DeMott-Director of Finance and Power Management
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 60.32 63.20 67.14
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 36.28 37.20 45.00
BPA Tier 2 10.74 21.60 17.74
Non BPA:
Co-generation
Hydro (critical water) 4.80 4.40 4.40
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA) 8.50 0.00 0.00
Other
Distributed Generation
Undecided
Total Resources 60.32 63.20 67.14
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 55
Lakeview Light & Power
Washington State Utility Resource Plan Year 2022
Prepared by: PBA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 29.99 30.35 30.66
Resources:
Future Conservation/Efficiency 0.24 0.24
Demand Response
BPA Tier 1 (include BPA PF) 29.99 30.12 30.42
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 29.99 30.35 30.66
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 56
Mason County PUD No. 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 10.69 10.45 10.66
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 8.85 8.99 8.99
BPA Tier 2 1.30 0.91 1.11
Non BPA:
Co-generation
Hydro (critical water) 0.54 0.54 0.54
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 10.69 10.45 10.66
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 57
Mason PUD 3
Washington State Utility Resource Plan Year 2022
Prepared by: Michele Patterson
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 80.76 88.65 94.42
Resources:
Future Conservation/Efficiency 1.20 3.41
Demand Response 0.00 0.00
BPA Tier 1 (include BPA PF) 77.79 79.93 79.93
BPA Tier 2 0.00 5.04 0.00
Non BPA:
Co-generation 0.00 0.00 0.00
Hydro (critical water) 0.97 0.66 0.66
Wind 1.97 1.80 0.00
Other Renewables 0.00 0.00 0.00
Thermal-Natural Gas 0.00 0.00 0.00
Thermal-Coal 0.00 0.00 0.00
Market Purchase (non BPA) 0.00 0.00 0.00
Other 0.00 0.00 0.00
Distributed Generation 0.02 0.02 0.02
Undecided 0.00 0.00 10.40
Total Resources 80.76 88.65 94.42
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval: August 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Based on federal fiscal year to align with BPA.
Line 5: actuals used for base year load; forecast not weather adjusted.
Line 20: distributed generation source is solar.
Line 21: decision to be made at a later date once 2028 BPA contract terms better understood.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 58
City of McCleary
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 3.70 3.84 3.97
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 3.70 3.72 3.72
BPA Tier 2 0.12 0.25
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 3.70 3.84 3.97
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 59
City of Milton
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 6.63 6.62 6.63
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 6.63 6.61 6.62
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 6.63 6.62 6.63
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 60
Modern Electric Water Company
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 26.88 27.08 27.67
Resources:
Future Conservation/Efficiency 0.31 0.31
Demand Response
BPA Tier 1 (include BPA PF) 26.29 26.29 26.29
BPA Tier 2 0.59 0.48 1.07
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 26.88 27.08 27.67
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 61
Nespelem Valley Electric Cooperative Inc.
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 8.20 8.20 8.26
Resources:
Future Conservation/Efficiency 0.02 0.02
Demand Response
BPA Tier 1 (include BPA PF) 5.88 5.88 5.88
BPA Tier 2 2.32 2.30 2.36
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 8.20 8.20 8.26
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 62
Okanogan County Electric Cooperative
Washington State Utility Resource Plan Year 2022
Prepared by: Jeff Kugel
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2022 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 8.85 9.20 10.30
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 8.10 8.00 8.00
BPA Tier 2 0.56
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA) 0.19
Other
Distributed Generation
Undecided 1.20 2.30
Total Resources 8.85 9.20 10.30
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 63
PUD No. 1 of Okanogan County
Washington State Utility Resource Plan Year 2022
Prepared by: Ron Gadeberg
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 75.04 75.83 77.74
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response 0.00 0.00
BPA Tier 1 (include BPA PF) 45.00 45.00 45.00
BPA Tier 2 0.00 0.00 0.00
Non BPA:
Co-generation 0.00 0.00 0.00
Hydro (critical water) 0.00 0.00 0.00
Wind 0.00 0.00 0.00
Other Renewables 0.00 0.00 0.00
Thermal-Natural Gas 0.00 0.00 0.00
Thermal-Coal 0.00 0.00 0.00
Market Purchase (non BPA) 30.04 30.83 32.74
Other 0.00 0.00 0.00
Distributed Generation 0.00 0.00 0.00
Undecided 0.00 0.00 0.00
Total Resources 75.04 75.83 77.74
Load Resource Balance 0.00 0.00 0.00
Date of Board/Commission Approval: June 23
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Loads: Used Actual 2021 Loads at POD (Point of Delivery). Used Actual 2021 Resources at POD. Forecasted Load based on BPA approved load forecast.
Forecasted Resources: BPA based on Block Slice Contract. Future load growth met via PGE Load following product.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 64
Ohop Mutual Light Company
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 10.73 10.67 10.67
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 10.16 10.16 10.16
BPA Tier 2 0.57 0.51 0.51
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 10.73 10.67 10.67
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 65
Orcas Power and Light Cooperative
Washington State Utility Resource Plan Year 2022
Prepared by: RHS
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 26.47 26.64 27.55
Resources:
Future Conservation/Efficiency 0.05 0.05
Demand Response 0.00 0.00
BPA Tier 1 (include BPA PF) 26.39 26.01 26.40
BPA Tier 2 0.00 0.00 0.00
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation 0.08 0.59 1.10
Undecided
Total Resources 26.47 26.64 27.55
Load Resource Balance 0.00 0.00 0.00
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
No plans demand response at this point 2.) 5/10 year projections on load comes from BPA 3.)Distributed generation is solely solar
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 66
Pacific PUD #2
Washington State Utility Resource Plan Year 2022
Prepared by:
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 36.20 38.80 39.90
Resources:
Future Conservation/Efficiency 1.00 0.90
Demand Response
BPA Tier 1 (include BPA PF) 35.60 36.87 39.00
BPA Tier 2 0.93
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA) 2.00
Other
Distributed Generation
Undecided
Total Resources 37.60 38.80 39.90
Load Resource Balance 1.40 0.00 0.00
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
BPA has not set contract high water marks for new contract just yet.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 67
Parkland Light & Water Company
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 13.49 13.48 13.62
Resources:
Future Conservation/Efficiency 0.04 0.04
Demand Response
BPA Tier 1 (include BPA PF) 13.49 13.45 13.58
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 13.49 13.48 13.62
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 68
Pend Oreille PUD
Washington State Utility Resource Plan Year 2022
Prepared by: April Owen
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 34.40 35.69 38.45
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 29.20 0.00 0.00
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water) 94.90 94.90 94.90
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation 0.01 0.01 0.01
Undecided
Total Resources 124.11 94.91 94.91
Load Resource Balance 89.71 59.22 56.46
Date of Board/Commission Approval: September 22
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
Line 17: Pend Oreille PUD is anticipating it will sell approximately 54.00 of the 94.90 MWa reported Hydro as a wholesale product beginning in 2026.
Line 24: We have a limited amount of distributed generation, mostly in the form of solar. We are not expecting a material amount of growth in this area.
Pend Oreille PUD currently sells its length as a wholesale product. Loads reported are the District's base load and do not include cryptomining
consumption of approximately 90 MWa.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 69
City of Port Angeles
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 47.41 46.76 46.76
Resources:
Future Conservation/Efficiency 0.05 0.05
Demand Response
BPA Tier 1 (include BPA PF) 47.41 46.71 46.71
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 47.41 46.76 46.76
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 70
Port of Seattle
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 15.83 16.89 16.89
Resources:
Future Conservation/Efficiency 0.17 0.17
Demand Response
BPA Tier 1 (include BPA PF) 15.83 16.72 16.72
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 15.83 16.89 16.89
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 71
Town of Ruston
Washington State Utility Resource Plan Year 2022
Prepared by: Rick Applegate
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 1.08 1.10 1.04
Resources:
Future Conservation/Efficiency
Demand Response
BPA Tier 1 (include BPA PF) 0.79 0.80 0.74
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water) 0.69 0.41 0.40
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 1.47 1.21 1.14
Load Resource Balance 0.39 0.11 0.10
Notes: Explain resource choices other than conservation / use of renewable energy credits in planning/ distributed generation sources
The Town of Ruston is a full requirements customer of Tacoma Power. As a result, the Resource Plan has been derived from the Tacoma Power IRP,
scaled to load values for the Town of Ruston. The assumed load for Ruston is as follows: 2021 uses actual load for the calendar year; 2026 and 2031
reflect the same load growth percentage rates as forecast in the Tacoma Power IRP for the same periods.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 72
Skamania County PUD No 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 16.68 16.00 16.32
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 15.91 15.91 15.91
BPA Tier 2 0.77 0.09 0.41
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 16.68 16.00 16.32
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 73
Town of Steilacoom
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 4.65 4.64 4.75
Resources:
Future Conservation/Efficiency 0.00 0.01
Demand Response
BPA Tier 1 (include BPA PF) 4.65 4.64 4.75
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 4.65 4.64 4.75
Load Resource Balance 0.01 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 74
City of Sumas
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 3.59 3.76 3.67
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 3.59 3.64 3.64
BPA Tier 2 0.11 0.03
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 3.59 3.76 3.67
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 75
Tanner Electric Cooperative
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 11.57 11.62 11.94
Resources:
Future Conservation/Efficiency 0.01 0.01
Demand Response
BPA Tier 1 (include BPA PF) 11.03 11.03 11.03
BPA Tier 2 0.54 0.58 0.90
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 11.57 11.62 11.94
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 76
Vera Water and Power
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 27.67 26.781 27.457
Resources:
Future Conservation/Efficiency 0.03 0.03
Demand Response
BPA Tier 1 (include BPA PF) 25.91 26.751 27.157
BPA Tier 2 0.77 0.00 0.27
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other* 1.00
Distributed Generation
Undecided
Total Resources 27.67 26.78 27.46
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 77
Wahkiakum County PUD No 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 5.39 5.29 5.37
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 5.01 5.01 5.01
BPA Tier 2 0.39 0.28 0.36
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 5.39 5.29 5.37
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 78
Whatcom County PUD No 1
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 26.45 30.27 29.94
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 26.45 26.83 26.83
BPA Tier 2 3.44 3.11
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 26.45 30.27 29.94
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 79
Yakama Power
Washington State Utility Resource Plan Year 2022
Prepared by: BPA
Base Year 5 Yr. Est. 10 Yr Est.
Estimate Year 2021 2026 2031
Period Annual Annual Annual
Units (MWa) (MWa) (MWa)
Loads 17.66 18.59 18.80
Resources:
Future Conservation/Efficiency 0.00 0.00
Demand Response
BPA Tier 1 (include BPA PF) 17.66 18.59 18.80
BPA Tier 2
Non BPA:
Co-generation
Hydro (critical water)
Wind
Other Renewables
Thermal-Natural Gas
Thermal-Coal
Market Purchase (non BPA)
Other
Distributed Generation
Undecided
Total Resources 17.66 18.59 18.80
Load Resource Balance 0.00 0.00 0.00
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 80
Appendix B: Washington Utility Customer Count,
Revenue, Sales, and Average Price29
2021 Utility Data
Customers Revenue (Thousand Retail Sales Average Price
(Count) Dollars) (Megawatthours) (Cents/kWh)
Cooperatives
Inland Power & Light Company 42,755 $62,455 977,541 6¢
Peninsula Light Company 34,707 $60,505 602,240 10¢
Elmhurst Mutual Power & Light Co 15,741 $19,527 287,017 7¢
Orcas Power & Light Coop 15,569 $32,011 219,743 15¢
Benton Rural Electric Assn 15,309 $42,519 592,182 7¢
Modern Electric Water Company 10,420 $14,926 224,121 7¢
Lakeview Light & Power 10,311 $23,531 252,098 9¢
Big Bend Electric Coop, Inc 9,686 $39,958 582,631 7¢
Columbia Rural Elec Assn, Inc 5,999 $33,350 381,765 9¢
Tanner Electric Coop 5,186 $12,316 95,867 13¢
Parkland Light & Water Company 4,603 $8,799 113,343 8¢
Ohop Mutual Light Company, Inc 4,591 $7,542 90,949 8¢
Okanogan County Elec Coop, Inc 3,952 $6,356 65,828 10¢
Nespelem Valley Elec Coop, Inc 1,536 $5,311 64,234 8¢
Clearwater Power Company 1,030 $2,305 22,054 10¢
Alder Mutual Light Co, Inc 315 $405 5,019 8¢
Kootenai Electric Cooperative 97 $245 2,807 9¢
Northern Lights, Inc 15 $15 117 13¢
Investor Owned
Puget Sound Energy Inc 1,196,851 $2,367,219 23,282,858 10¢
Avista Corp 263,559 $568,172 5,730,590 10¢
PacifiCorp 134,816 $339,381 4,198,960 8¢
Municipal
City of Seattle - (WA) 485,155 $952,665 8,922,444 11¢
City of Tacoma - (WA) 184,103 $380,881 4,642,537 8¢
City of Richland - (WA) 26,485 $74,590 950,951 8¢
City of Port Angeles - (WA) 11,864 $24,942 374,660 7¢
City of Centralia - (WA) 10,550 $26,480 266,777 10¢
29 Energy Information Administration. (2023, October 5). Annual Electric Power Information Report. Retrieved from
https://www.eia.gov/electricity/data/eia861/
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 81
Customers Revenue (Thousand Retail Sales Average Price
(Count) Dollars) (Megawatthours) (Cents/kWh)
City of Ellensburg - (WA) 10,345 $18,148 206,175 9¢
City of Cheney - (WA) 5,879 $8,325 134,942 6¢
City of Blaine - (WA) 3,612 $6,853 81,074 8¢
City of Milton - (WA) 3,541 $4,989 55,790 9¢
Town of Steilacoom 2,990 $4,069 38,973 10¢
City of Chewelah 1,341 $2,001 21,433 9¢
Town of Eatonville - (WA) 1,278 $2,210 27,312 8¢
City of McCleary - (WA) 1,227 $2,892 32,390 9¢
City of Sumas - (WA) 1,050 $2,300 30,431 8¢
City of Coulee Dam - (WA) 605 $1,169 16,749 7¢
Town of Ruston - (WA) 575 $1,160 9,330 12¢
Public Utility Districts
PUD No 1 of Asotin County 3 $18 302 6¢
PUD 1 of Snohomish County 367,096 $623,345 6,587,977 9¢
PUD No 1 of Clark County - (WA) 224,988 $381,092 4,675,496 8¢
PUD No 1 of Benton County 56,072 $130,786 1,807,315 7¢
PUD No 2 of Grant County 53,213 $231,937 5,382,366 4¢
PUD No 1 of Cowlitz County 52,217 $261,272 4,509,075 6¢
PUD No 1 of Chelan County 48,576 $80,373 1,984,267 4¢
PUD No 1 of Grays Harbor County 43,620 $107,549 1,164,781 9¢
PUD No 3 of Mason County 35,082 $71,024 675,366 11¢
PUD No 1 of Lewis County 33,873 $79,825 948,798 8¢
PUD No 1 of Clallam County 33,397 $68,656 651,819 11¢
PUD No 1 of Franklin County 28,824 $85,833 1,104,954 8¢
PUD No 1 of Okanogan County 21,663 $49,357 616,510 8¢
PUD No 1 of Jefferson County 20,440 $38,776 377,797 10¢
PUD No 2 of Pacific County 18,071 $25,814 309,414 8¢
PUD No 1 of Douglas County 16,779 $38,958 1,222,085 3¢
PUD No 1 of Klickitat County 13,696 $36,090 442,246 8¢
Vera Irrigation District #15 12,920 $19,233 234,126 8¢
PUD No 1 of Pend Oreille County 9,648 $20,298 275,483 7¢
PUD No 1 of Skamania Co 6,470 $14,079 127,678 11¢
PUD No 1 of Mason County 5,505 $9,711 81,779 12¢
PUD No 1 of Kittitas County 4,888 $11,687 110,501 11¢
PUD No 1 of Ferry County 3,700 $7,179 72,939 10¢
PUD No 1 of Wahkiakum County 2,685 $4,422 43,860 10¢
PUD No 1 of Whatcom County 1 $11,479 223,343 5¢
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 82
Appendix C: Glossary of Terms
Average Annual Energy: one megawatt is equal to one million watts. One million watts delivered continuously
24 hours a day for a year (8,760 hours) is called an average megawatt. The maximum amount of power a
generating plant is capable of producing over the course of an average year is called its generating capability
or average annual energy, expressed in average megawatts.
Cogeneration: the sequential production of electricity and useful thermal energy from a common fuel source.
Demand Response: the voluntary and temporary reduction in consumers’ use of electricity when the power
system is stressed. It includes voluntary demand response, demand response with paid incentives, time-of-
use, and demand voltage reduction programs.
Distributed Generation: an eligible renewable resource where the facility or any integrated cluster of
generating units has a generating capacity of not more than five megawatts.
Duration Value at Risk (VaR Duration): longest shortfall event for the 97.5th worst simulation year. VaR
Duration sets a limit for shortfall duration during rare (once per 40 year) events. To calculate this metric, the
duration of the longest shortfall event for each simulation year is recorded (or zero if there is no shortfall). The
Duration VaR97.5 is the 97.5th highest duration from that record. Choosing the 97.5th percentile limits the risk
of an excessively long shortfall event to no more than once per 40 years.
Energy Conservation Measures: any reduction in electric power consumption resulting from increases in the
efficiency of energy use, production, or distribution.
Energy Value at Risk (VaR Energy): total annual shortfall energy for the 97.5th worst simulation year. VaR
Energy set limits for the big energy shortfalls during rare (once per 40 year) events.
Loss of Load Probability (LOLP): traditionally, a power supply is deemed to be adequate when its annual Loss
of Load Probability (LOLP) is 5% or less; that is, when the likelihood of having one or more shortfalls during an
operating year is less than or equal to 5%. A 5% LOLP means that the simulated operation of the power supply
yields only one year out of 20 with shortfalls.
Loss of Load Events (LOLEV): the expected number of shortfall events per year. A shortfall event is a set of
contiguous hours of unserved demand. LOLEV is equal to the total number of shortfall events divided by the
total number of simulation years.
Net short-term contracts/Market Purchases: refers to limited duration wholesale power purchase not to
exceed one month, made by an electric utility for delivery to Washington retail electric customers for which the
source of the power is not known at the time of entry into the transaction to procure the electricity.
Loads: electric loads include retail sales + line losses + utility needs. The base year includes existing
conservation or demand reduction as a part of base year load. All projected electric loads (non-base year) are
estimated before reductions from energy conservation measure programs or demand response program
estimates. Additional future conservation and demand response are treated as resources to meet future load.
Peak Energy: highest estimated one-hour load for summer and winter, normalized for weather.
Peak Value at Risk (VaR Peak): highest single-hour shortfall for the 97.5th worst simulation year. VaR Peak set
limits for occurrences of big energy shortfalls during rare (once per 40 year) events.
WASHINGTON STATE UTILITY RESOURCE PLANNING REPORT 2022 83
Resource Adequacy: the ability of the electricity system to supply the aggregate electric power and energy
requirements of the electricity consumers at all times, taking into account scheduled and expected
unscheduled outages of system components.
Renewable Resources: RCW 19.280, Electricity Utility Resource Plans, defines “renewable resources” as
“electricity generation facilities fueled by: (a) Water; (b) wind; c) solar energy, (d) geothermal energy, (e) landfill
gas, (f) biomass energy utilizing animal waste, solid organic fuels from wood, forest or field residues or
dedicated energy crops that do not include wood pieces that have been treated with chemical preservatives
such as creosote, pentachlorophenol, or copper-chrome-arsenic; (g) by-products of pulping or wood
manufacturing processes, including but not limited to bark, wood chips, sawdust, and lignin in spent pulping
liquors; (h) ocean thermal, wave or tidal power; and (i) gas from sewage treatment facilities.”
Western Electricity Coordinating Council (WECC): WECC promotes bulk power system reliability and security
in the Western Interconnection. WECC is the regional entity responsible for compliance monitoring and
enforcement and oversees reliability planning and assessments. In addition, WECC provides an environment
for the development of reliability standards and the coordination of the operating and planning activities of its
members.
Western Interconnection: the geographic area containing the synchronously operated electric grid in the
western part of North America, which includes parts of Montana, Nebraska, New Mexico, South Dakota, Texas,
Wyoming and Mexico and all of Arizona, California, Colorado, Idaho, Nevada, Oregon, Utah, Washington and the
Canadian provinces of British Columbia and Alberta.
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