Utility / owner / operatorWAMunicipally-owned utilityHow EIA classifies an organization, such as a public utility, cooperative or investor-owned company.Definition ↗Consumer-ownedUtilities owned by the public they serve: municipal, cooperative, public utility district and other political subdivisions, state and federal. A grouping the atlas defines from EIA's owner types.Definition ↗
Operated nameplate capacity, operating generatorsFull nameplate MW of operating generators at plants this organization runs, including shares held by other owners.Definition ↗
12MW
Source & method
Sum of operating generator nameplate MW at plants where this organization is the reported operator
2024 inventory · reported · derived · valid · final
1 of 1 plants included.
Reported operating capacity; partial plant/unit coverage is marked
Owned nameplate capacity, operating generatorsOperating generator nameplate MW multiplied by this organization’s ownership share, once per generator. This can include plants another organization operates.Definition ↗
12MW
Source & method
Sum over operating generators of nameplate MW x this organization's ownership fraction (reported schedule or EIA-860 schedule-4 default)
2024 inventory · reported · derived · valid · final
Example: an operating 100 MW generator with a 25% ownership share contributes 25 MW to owned capacity. Its operator counts the full 100 MW. Neither quantity establishes who buys its electricity.
Operates
Operating MWFull operating nameplate capacity at plants this organization runs, including shares held by other owners.Definition ↗
Share-weighted MWAn organization with a reported share of a generator. Owned MW applies that share to operating nameplate capacity; it does not establish who buys the output.Definition ↗
Through BPA: 87.5% of sales; unspecified purchases: 10.3%. Filed as claimant “Centralia City Light”.
By report year MWh and shares of Washington retail sales including losses; not generation, not a compliance finding
Each year as Commerce's fuel-mix system holds it: MWh and shares of the utility's Washington retail sales including line losses, never generation and never a compliance finding. Years before CY2018 are Commerce's restatement under the 2019 method, not the disclosure published for the year; no change is taken across that break.
Disclosed supply by report year
Report year
Washington retail sales · MWh
Mix · share of Washington sales
Through BPA · share
Unspecified · share
CY2018 onUnspecified power is disclosed as its own category, as the statute has required since ESHB 1428 (2019); Commerce's statutory aggregate carries an unspecified row from CY2018. CY2022-Aggregate Fuel Mix Time Series.xlsx ↗ (Info!A10; Info!A16)
CY2024
270,028 MWh
Hydro 78.4% · Nuclear 11.3% · Market 10.3%
87.5%
10.3%
CY2023
273,797 MWh
Hydro 76.4% · Market 14.0% · Nuclear 9.6%
85.6%
14.0%
CY2022
274,995 MWh
Hydro 79.6% · Nuclear 10.3% · Coal 6.3%
93.5%
3.8%
CY2021
276,255 MWh
Hydro 74.9% · Coal 13.4% · Nuclear 8.2%
75.4%
3.5%
CY2020
265,247 MWh
Hydro 75.1% · Coal 14.1% · Nuclear 7.7%
70.9%
3.1%
CY2019
269,289 MWh
Hydro 84.4% · Nuclear 8.3% · Market 3.9%
72.9%
3.9%
CY2018
270,920 MWh
Hydro 88.1% · Nuclear 7.5% · Market 4.4%
70.4%
4.4%
Before CY2018: restatedCommerce's current system run over what utilities reported for a year before CY2018. The disclosure published for that year followed the old law, which required Commerce to assign fuel shares to unspecified power; this run keeps unspecified power as its own Market category, and Commerce's statewide totals for these years differ from the statutory reports. Not the label customers received, and not comparable with CY2018 on. CY2022-Aggregate Fuel Mix Time Series.xlsx ↗ (Info!A10; Info!A16)
Categories and shares as Commerce computed them from declared resources, the BPA system mix (BPA's own mix applied to BPA deliveries, remainder unspecified) and unspecified purchases; a declared resource needs ownership or an auditable contract and its REC; renewable power without the REC counts as unspecified. Not an emissions accounting.
Carbon allowances · no-cost allocationAn emissions allowance Washington assigns to an eligible utility without charge. It is not measured emissions.Definition ↗
Cap-and-investWashington’s program that limits covered greenhouse gas emissions and requires allowances for them.Definition ↗ period 1 · t CO2e
No-cost carbon allowances
13,059t CO2e
2023 calendar year
Source & method
Ecology's Electric Utility Allowance Allocation Schedule under WAC 173-446-230: allowances allocated at no cost to a CETA-obligated electric utility for the calendar year, one allowance = one metric ton of CO2 equivalent. An allocation computed from Ecology's forecast of the utility's Washington retail load and resource supply, not measured emissions and not a cap on the utility
2023 calendar year · reported · direct · valid · final
sheet AllowanceAllocation; Centralia, City of; 2023
Ecology's Electric Utility Allowance Allocation Schedule under WAC 173-446-230: allowances allocated at no cost to a CETA-obligated electric utility for the calendar year, one allowance = one metric ton of CO2 equivalent. An allocation computed from Ecology's forecast of the utility's Washington retail load and resource supply, not measured emissions and not a cap on the utility
2024 calendar year · reported · direct · valid · final
sheet AllowanceAllocation; Centralia, City of; 2024
Ecology's Electric Utility Allowance Allocation Schedule under WAC 173-446-230: allowances allocated at no cost to a CETA-obligated electric utility for the calendar year, one allowance = one metric ton of CO2 equivalent. An allocation computed from Ecology's forecast of the utility's Washington retail load and resource supply, not measured emissions and not a cap on the utility
2025 calendar year · reported · direct · valid · final
sheet AllowanceAllocation; Centralia, City of; 2025
Ecology's Electric Utility Allowance Allocation Schedule under WAC 173-446-230: allowances allocated at no cost to a CETA-obligated electric utility for the calendar year, one allowance = one metric ton of CO2 equivalent. An allocation computed from Ecology's forecast of the utility's Washington retail load and resource supply, not measured emissions and not a cap on the utility
2026 calendar year · reported · direct · valid · final
sheet AllowanceAllocation; Centralia, City of; 2026
The utility's no-cost allocation for the year multiplied by the settlement price of the most recent quarterly Cap-and-Invest auction. An illustration of scale, not revenue received: a utility consigns only part of its allocation, the price changes every quarter, and the proceeds of any sale must go back to customers
2026 calendar year · reported · derived · valid · final
2026 allocation at the $39.50 settlement price of auction #15 on 2026-09-02
At the settlement price of $39.50 per allowance from auction #15 on 2026-09-02 (Ecology’s summary report ↗), where 3,484,205 allowances were sold on behalf of consigning entities statewide. What the allocation would fetch at one auction's price. Utilities consign part of their allowances to these auctions and must return the proceeds to customers; the rest they hold for compliance or bank.
Allocated to “Centralia, City of” on Ecology’s schedule, filed as consumer-owned utility. A utility cannot sell these allowances to another company: it uses them for compliance, banks them, transfers them to an eligible generator, or consigns them to a quarterly auction, and the proceeds must go back to customers.
How Ecology computed each year
Year
Forecast WA load (MWh)
Forecast supply
Allowances (t CO2e)
Forecast filed in
2023
284,174MWh
Bonneville Power Administration 74.1% · Renewable or non-emitting 22.7% · Unspecified market purchases 3.2%
13,059t CO2e
IRP
2024
284,061MWh
Bonneville Power Administration 75.0% · Renewable or non-emitting 22.0% · Unspecified market purchases 3.0%
12,648t CO2e
IRP
2025
284,060MWh
Bonneville Power Administration 78.1% · Renewable or non-emitting 21.9%
10,023t CO2e
BPA
2026
293,960MWh
Bonneville Power Administration 78.8% · Renewable or non-emitting 21.2% · Unspecified market purchases 0.0%
10,447t CO2e
BPA
Supply shares are Ecology’s forecast for the allocation, taken from the utility’s own filing. They are not the disclosed fuel mix above, which reports what was actually sold.
An allocation of allowances, not a measurement of emissions and not a cap on the utility. Ecology computes it from its forecast of the utility's Washington retail load and resource supply, and reissues the schedule as forecasts and the BPA emission factor change; the supply shares here are that forecast, not the disclosed fuel mix.
Money · FERC Form 1The annual financial report large investor-owned utilities file with the federal energy regulator.Definition ↗
FERC Form 1: not a respondent (public power, cooperative, federal or non-utility); checked PUDL v2026.9.0 respondent list 2026-09-18
Retail electricity sold
Full serviceA utility that sells electricity to customers. Full-service sales include both electricity and delivery.Definition ↗
Average revenue per kWhRevenue divided by electricity sold. This average is not a tariff or a household bill.Definition ↗ is realized revenue ÷ sales, not a tariff.
WA · commercial
Retail sales
32,928MWh
2024
Source & method
EIA-861 electricity sold to ultimate customers for the stated utility, state, customer class and service type; calendar year
2024 calendar year · reported · direct · valid · final
Sold to retail customers in the stated state (utility x state grain); bundled full-service rows only in the summaries; energy-only and delivery-only rows are listed but never added to bundled sales. Realized average revenue per kWh is not a tariff.
Clean-energy obligationsFive separate records of a clean-energy obligation, never merged: applicability (which statute reaches this utility and why), target (the figure as enacted or ordered, or as a filing or compilation restates it, with that standing marked), filed achievement (what the utility itself reported for a period), determination (what the issuing body decided about the filing, with its order number and date) and deciding event (the open proceeding, its next step and where to comment). A fuel-mix value is none of these, and a filing that restates a target does not enact it.Definition ↗
checked 2026-09-18
Five kinds kept apart: what applies, what is owed, what the utility filed, what the issuing body decided, and the open proceeding. The disclosed-supply block above is the same utility's fuel mix as Commerce computed it; read it beside these rows, never as a verdict on them. Rows checked through 2026-09-18; a row past its review date is marked, not removed.
Clean Energy Transformation Act RCW 19.405 ↗ · Washington State Department of Commerce (plan adopted by the utility's governing board)
Applicability not yet curated for this utility.
Clean energy implementation plan every four years (RCW 19.405.060) with interim targets; coal out of the allocation by 2025-12-31, greenhouse gas neutral retail sales from 2030-01-01, 100 percent renewable or nonemitting by 2045-01-01
What is owed The obligation as enacted or ordered; a utility’s own restatement does not enact it.
interim target for the 2022-2025 compliance periodcompiled Washington State Department of Commerce · CEIP Draft Aggregate Workbook 22.12.15.xlsx, sheet Interim targets· of retail electric load As the document puts itAnnual interim targets 2022 89, 2023 89, 2024 91, 2025 91 percent. Split over the period: renewable 83 percent, nonemitting 7 percent. Utility Number in the Commerce workbook is the EIA utility identifier.
eliminate coal-fired resources from the utility's allocation of electricityenacted Washington State Legislature · RCW 19.405.030 Coal-fired resources - Depreciation schedule - Penalties· of the utility's allocation of electricity supplied by coal-fired resources As the document puts itOn or before December 31, 2025. Excludes decommissioning and remediation costs; long-term BPA purchases are exempt unless the electricity is known to be coal-fired. The commission must set depreciation schedules ending no later than 2025-12-31.
greenhouse gas neutral retail sales, at least 80 percent from renewable and nonemitting resourcesenacted Washington State Legislature · RCW 19.405.040 Greenhouse gas neutral electricity supply· of retail sales of electricity to Washington retail electric customers As the document puts itBy January 1, 2030. Up to 20 percent of the obligation may be met by alternative compliance: alternative compliance payments, unbundled renewable energy credits or energy transformation projects. Four-year compliance periods 2030-2033, 2034-2037, 2038-2041 and 2042-2044.
nonemitting generation and renewable resources supply 100 percent of retail salesenacted Washington State Legislature · RCW 19.405.050 One hundred percent renewable and nonemitting electricity supply· of retail sales of electricity to Washington retail electric customers As the document puts itBy January 1, 2045, with an annual demonstration of compliance after that date.
What the utility filed Its own report of what it did; a number it reports, not a verdict.
Not yet curated As the document puts itThe atlas has not curated an assertion of this kind for this utility; this is the atlas's coverage, not the utility's record, and it is not a finding of compliance or of its absence The atlas has not curated this kind for this utility; that is the atlas’s coverage, not the utility’s record.
What the issuing body decided Orders and acknowledgments on the filings.
Not yet curated As the document puts itThe atlas has not curated an assertion of this kind for this utility; this is the atlas's coverage, not the utility's record, and it is not a finding of compliance or of its absence The atlas has not curated this kind for this utility; that is the atlas’s coverage, not the utility’s record.
The open proceeding Where the next decision is being made, and how to take part.
Not yet curated As the document puts itThe atlas has not curated an assertion of this kind for this utility; this is the atlas's coverage, not the utility's record, and it is not a finding of compliance or of its absence The atlas has not curated this kind for this utility; that is the atlas’s coverage, not the utility’s record.
What stays uncertain in these sources
No documented JSON API; the `apiproxy` host answered HTTP 500.30 all session and detail pages said "Record not found".The document endpoint served every filing read on 2026-09-19 and 2026-09-21; it remains undocumented.
resolved
Docket files before 2024 are not available. We are working to resolve the issue.
open
The collection of 2026-2029 CEIPs … are still ongoing.
SAIDISystem Average Interruption Duration Index: the minutes of sustained interruption the average customer had over the year, customer-minutes interrupted divided by customers served. Each utility calculates and reports its own figure on EIA-861 Schedule 3, under the method it declares. A system average says nothing about one address.Definition ↗, SAIFISystem Average Interruption Frequency Index: how many sustained interruptions the average customer had over the year, customers interrupted divided by customers served, as the utility reports it on EIA-861 Schedule 3.Definition ↗ and CAIDICustomer Average Interruption Duration Index: minutes per sustained interruption, SAIDI divided by SAIFI on the same basis. EIA-861 asks utilities for SAIDI and SAIFI only; EIA publishes CAIDI with the data and the atlas shows it as published, never recomputed.Definition ↗ count sustained interruptions. Figures with and without major event daysDays a utility sets apart from normal operation: EIA describes them as events such as snowstorms, floods or heatwaves, or periods of outages that differ greatly from the utility's own five-year history. EIA-861 asks for the indices both with and without them. Part B respondents determine them under IEEE 1366; Part C respondents define a major event themselves. The two series answer different questions and are never blended.Definition ↗ are different measures; compare like with like.
WA · IEEE 1366EIA-861 Schedule 3 has two parts. Part B is for utilities that calculate SAIDI and SAIFI and determine major event days under IEEE 1366-2003 or IEEE 1366-2012; Part C is for any other method, where the utility also states how it defines a momentary interruption and whether inactive accounts count as customers. Figures from the two parts are not comparable and the atlas never pools them; utilities under Part C do not share one method either.Definition ↗
Index
Major event days included
Major event days excluded
Included, loss of supply removed
SAIDIminutes/customer/year
179.9
55.7
179.9
SAIFIinterruptions/customer/year
0.96
0.34
0.96
CAIDIminutes/interruption
187.4
162.8
187.4
Customers the indices are based on
10,745 customers
Highest voltage counted as distribution
12.5 kV
How it was measuredDetermined under IEEE 1366-2003 or IEEE 1366-2012; the form does not record which edition
Outages recorded automatically: no
Others reporting the same way · major event days included21 utilities in WA under IEEE 1366. Each counts once whatever its size; this is context, not a ranking.
SAIDI median 258.5 (52.9–1,887) minutes/customer/yearSAIFI median 1.41 interruptions/customer/year
Others reporting the same way · major event days excluded21 utilities in WA under IEEE 1366. Each counts once whatever its size; this is context, not a ranking.
SAIDI median 136.1 (39.5–604.7) minutes/customer/yearSAIFI median 1 interruptions/customer/year
Every year filed
As filed each year. SAIDI in minutes per customer per year; SAIFI in interruptions per customer per year. Blank cells were not reported.
Year
State
Standard
SAIDI with
SAIDI without
SAIFI with
SAIFI without
Customers
2024
WA
IEEE 1366
179.9
55.7
0.96
0.342
10,745
2023
WA
IEEE 1366
208.6
57.1
1.675
0.464
10,745
2022
WA
IEEE 1366
256.2
68.5
2.006
0.461
10,745
2021
WA
IEEE 1366
232
79.3
2.039
0.707
10,539
2020
WA
IEEE 1366
76.8
76.8
0.451
0.451
10,418
2019
WA
IEEE 1366
638.4
188
3.535
1.212
10,418
2018
WA
IEEE 1366
123.9
123.9
1.112
1.112
10,324
2017
WA
IEEE 1366
394.6
130.2
2.092
1.2
10,236
2016
WA
IEEE 1366
203.3
101.6
1.023
0.914
10,236
2015
WA
IEEE 1366
166.9
49.7
1.2
0.5
10,220
2014
WA
IEEE 1366
104.4
74.4
0.7
0.6
10,030
2013
WA
IEEE 1366
62
62
0.569
0.569
10,030
Reported by the utility on EIA-861 Schedule 3 under the method it declares. IEEE 1366 and other-method figures are not comparable, and values with and without major event days answer different questions. A system average says nothing about one address. CAIDI is published by EIA as SAIDI divided by SAIFI; it is not a line on the form. A value the utility left blank stays blank. Source and licence· Frozen facts for this utility ↗
Customer programmes
EIA-861 Schedule 6, as filed
Programme results as each utility filed them, by customer class and report year, each in its own unit. Classes are never added into a total, years are never added into a period, and savings are never divided by sales. The one ratio shown, enrolled demand-response customers against the utility's own EIA-861 customer count for the same state, class and year, carries both counts.
Energy efficiency EIA-861 Schedule 6 Part A
Reported by the utility on EIA-861 Schedule 6 Part A as adjusted gross savings at the customer meter under its own evaluation; figures are not comparable across utilities. Reporting-year incremental savings are annualized for participants new that year; life-cycle savings run over the programmes' planned life (energy as a lump sum, peak as the average annual reduction). Each class is shown as filed and the total row is the filer's own; nothing is summed here. Costs are nominal dollars of the report year (the form collects thousands; PUDL publishes dollars). A blank stays blank.
Report year 2023, WA. Each row is one customer class as filed; the filer's total is its own line and is not the sum of the rows above. Costs are nominal dollars.
Class
Incremental annual energy savings, reporting year (annualized)MWh
Customer incentives, incremental life-cycle cost (nominal)USD · life cycle
Other costs, incremental life-cycle (nominal)USD · life cycle
Other costs, reporting-year incremental (nominal)USD
CommercialBPAT
90 MWh
0 MW
1,086 MWh
0 MW
12 years
$21,182
$21,182
not reported
not reported
IndustrialBPAT
387 MWh
0.1 MW
4,648 MWh
0.1 MW
12 years
$74,231
$74,231
not reported
not reported
ResidentialBPAT
32 MWh
0 MW
472 MWh
0 MW
14.8 years
$14,000
$14,000
not reported
not reported
TransportationBPAT
not reported
not reported
not reported
not reported
not reported
not reported
not reported
not reported
not reported
Filer's totalBPAT
509 MWh
0.1 MW
6,206 MWh
0.1 MW
not applicable
$109,413
$109,413
not reported
not reported
Demand response EIA-861 Schedule 6 Part B
A long-form filer with no Schedule 6 row: either no programme, or a separate administrator reports it.
Population: organizations of this release with EIA-861 rows in the core states. A short-form respondent has no figures to file; a long-form respondent without a row may have no programmes or may have a nonutility administrator reporting for it. Years without a row are listed against the table's span, not against the years this utility filed the form.
Distributed generationCustomer-sited and small generation reported by utilities in aggregate on EIA-861; no locations; a separate population from the plant inventory, never added to it.Definition ↗
Utility reports · no locations
Distributed generation reported by this utility to EIA-861 for 2024, by state
Utility-reported, no locations, not in the EIA-860 plant inventory (>= 1 MW). Storage is listed separately and never added to generation capacity. Non-net-metered units >= 1 MW can also appear in EIA-860; the overlap is disclosed, not resolved. Source rollup rows are excluded from every sum.
Sum of EIA-861 utility-reported nameplate capacity over leaf technology classes, excluding storage and source rollup rows; utility x state grain; no locations; not part of the EIA-860 plant inventory
2024 calendar year · reported · derived · valid · final
1 of 1 reporting utilities included.
net-metered + non-net-metered; the two EIA-861 schedules are disjoint by design
Customer counts can include the same customer under more than one technology. Energy sold to utilities measures exports; it does not measure all generation at customer sites.
Net-metered customers
128count
2024
Source & method
EIA-861 net metering customer count over leaf technology classes; a customer with two technologies can be counted twice by the source
2024 calendar year · reported · derived · valid · final
Washington State Legislature (RCW 19.405, RCW 19.285), Washington Utilities and Transportation Commission orders and docket filings, Washington State Department of Commerce EIA and CEIP report summaries, and each utility's own filings, cited per row
One assertion per row, five kinds kept apart: what applies, what is owed, what the utility filed, what the issuing body decided, and the open proceeding. A fuel-mix value is not a compliance verdict, and a filing that restates a target does not enact it; standing on each row says whose figure it is. An absent row states what was checked and when; a utility not in the file has not been curated.
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Form 861
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Form 861
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)