Utility / owner / operatorWAOwner type not reportedHow EIA classifies an organization, such as a public utility, cooperative or investor-owned company.Definition ↗
Elmhurst Mutual Power & Light Co
About this record
Operates 0 plants; owns no reported shares; sells retail electricity.
Retail seller
2024 inventory
Operated nameplate capacity, operating generatorsFull nameplate MW of operating generators at plants this organization runs, including shares held by other owners.Definition ↗
Not reported
Source & method
Sum of operating generator nameplate MW at plants where this organization is the reported operator
2024 inventory · reported · derived · missing · final
0 of 0 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 ↗
Not applicable
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 · not_applicable · final
Through BPA: 100.0% of sales; unspecified purchases: 11.8%. Filed as claimant “Elmhurst Mutual Power & 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
287,466 MWh
Hydro 75.3% · Nuclear 12.9% · Market 11.8%
100.0%
11.8%
CY2023
290,785 MWh
Hydro 78.0% · Nuclear 11.3% · Market 10.7%
100.0%
10.7%
CY2022
295,605 MWh
Hydro 85.0% · Nuclear 11.0% · Market 4.1%
100.0%
4.1%
CY2021
289,227 MWh
Hydro 84.5% · Nuclear 10.9% · Market 4.6%
100.0%
4.6%
CY2020
281,274 MWh
Hydro 84.7% · Nuclear 10.9% · Market 4.4%
100.0%
4.4%
CY2019
280,524 MWh
Hydro 83.2% · Nuclear 11.5% · Market 5.4%
100.0%
5.4%
CY2018
278,604 MWh
Hydro 86.5% · Nuclear 10.7% · Market 2.8%
100.0%
2.8%
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
10,460t 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; Elmhurst Mutual P & L; 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; Elmhurst Mutual P & L; 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; Elmhurst Mutual P & L; 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; Elmhurst Mutual P & L; 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
auction #15 2026-09-02; Elmhurst Mutual P & L; 2026
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 “Elmhurst Mutual P & L” 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
287,013MWh
Bonneville Power Administration 100.0%
10,460t CO2e
IRP
2024
287,643MWh
Bonneville Power Administration 100.0%
10,339t CO2e
IRP
2025
289,366MWh
Bonneville Power Administration 100.0%
13,080t CO2e
BPA
2026
291,111MWh
Bonneville Power Administration 100.0%
13,349t 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
47,127MWh
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 itSplit over the period: renewable 82 percent, nonemitting 10 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.
Filed EIA-861 for this year without reliability values. Source
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 2024, 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
256 MWh
0 MW
3,077 MWh
0 MW
12 years
$71,000
$71,000
not reported
not reported
IndustrialBPAT
not reported
not reported
not reported
not reported
0 years
not reported
not reported
not reported
not reported
ResidentialBPAT
118 MWh
0 MW
2,022 MWh
0 MW
17.1 years
$101,000
$101,000
not reported
not reported
TransportationBPAT
not reported
not reported
not reported
not reported
0 years
not reported
not reported
not reported
not reported
Filer's totalBPAT
374 MWh
0.1 MW
5,099 MWh
0.1 MW
not applicable
$172,000
$172,000
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
95count
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 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)