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8.0avg. commissioner years of serviceSource: Advanced Energy United
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10.13ยขavg. price per kWhSource: EIA
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4legislative session length, monthsSource: Legislative Session
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33%residential market share of the largest utilitySource: December 2024, Advanced Energy United
breakdown of market shareUtility Percentage Market Share in Washington
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Puget Sound Energy Inc
Market Share33% -
City of Seattle - (WA)
Market Share14% -
PUD 1 of Snohomish County
Market Share10% -
Avista Corp
Market Share7% -
PUD No 1 of Clark County - (WA)
Market Share7%
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12governor years servedSource: December 2024, Advanced Energy United
Utilities
Washington Utilities
In most cases, we only provide profiles for the largest five utilities with more than 100,000 total customers.
The schedules listed here reflect what is established in statute, rules, or Orders. However, PUCs and utilities sometimes deviate from these schedules. Please check the most recent proceeding by going to the "Important Recurring Proceedings" section for each utility below.
Policy AreaIntegrated Resource Plan
ScheduleUnless otherwise ordered by the commission, each electric utility must file an integrated resource plan (IRP) with the commission by January 1, 2021, and every four years thereafter. At least every two years after the utility files its IRP, beginning January 1, 2023, the utility must file a two-year progress report.
Policy AreaEnergy Efficiency Resource Standard
ScheduleOn or before November 1 of every odd-numbered year, a utility must file with the Washington Utilities and Transporation Commission (UTC) a biennial conservation plan. In the same docket, a utility must file with the UTC an annual conservation plan containing any changes to program details and annual budget by November 15 of each even-numbered year. Finally, a utility must file in the same docket an annual conservation report regarding its progress in meeting its conservation target during the preceding year by June 1 each year. Each utility must also complete annual renewable resource energy reports to the Department of Commerce.
Policy AreaRenewable Portfolio Standard
ScheduleOn or before every June 1st, each utility must file an annual renewable portfolio standard report with the Washington Utilities and Transporation Commission and the Department of Commerce detailing the resources the utility has acquired or contracted to acquire to meet its renewable resource obligation for the target year.
Puget Sound Energy Inc
Ownership TypeInvestor Owned
Balancing AuthorityPuget Sound Energy
NERC Regional EntityWECC
Holding Company
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in WA33%
City of Seattle - (WA)
Ownership TypeMunicipal
Balancing AuthoritySeattle City Light
NERC Regional EntityWECC
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in WA14%
PUD 1 of Snohomish County
Ownership TypePolitical Subdivision
Balancing AuthorityBonneville Power Administration
NERC Regional EntityWECC
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in WA10%
Avista Corp
Ownership TypeInvestor Owned
Balancing AuthorityAvista Corporation
NERC Regional EntityWECC
Holding Company
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in WA7%
PUD No 1 of Clark County - (WA)
Ownership TypePolitical Subdivision
Balancing AuthorityBonneville Power Administration
NERC Regional EntityWECC
Structure
Owns Generation
Owns Transmission
Share of Residential Customers in WA7%