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Atlas / Plants / Grand Coulee Dam
Hydro plant · with pumped-storage hydroWA

Grand Coulee Dam

Listed by EIA as “Grand Coulee”.

About this record

Grant County, WA. Reports to the Bonneville Power Administration balancing authorityThe organization that balances electricity supply and demand in a reporting area.Definition ↗.

2024 inventory / 2024 calendar year

Show on the map ↗

Nameplate capacity, operating generatorsFull nameplate rating of the operating generators, before ownership shares. MW measures rated power; annual output is energy in MWh.Definition ↗
6,809MW
Source & method

Sum of generator nameplate MW with operational status code OP in the inventory year; one row per generator; unscaled by ownership

2024 inventory · reported · derived · valid · final

33 of 33 operating generators included.

out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Net generationEnergy produced over the stated period after the plant’s own use, including signed storage output. Plant output is not allocated to owners or buyers.Definition ↗
15,443,458MWh
2024
Source & method

Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained

2024 calendar year · reported · derived · valid · final

2 of 2 plant x prime-mover x fuel rows included.

out_eia923__yearly_generation_fuel_combined.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Capacity factor
0.258fraction
2024
Source & method

Net generation MWh / (operating nameplate MW x hours in year); only when every operating generator was operating before the year began and none retired during it

2024 calendar year · reported · derived · valid · final

derived: net_generation_mwh@2024 / (nameplate_mw_op x 8784 h)

Publisher & attribution ↗ Cite this released fact ↗

Output over time

Net generation · MWhElectricity produced after the plant’s own use. A negative value means it used more electricity than it produced.Definition ↗

Annual net generation · MWh. Bars below zero are negative net generation; a hollow mark means not reported. Missing years are not filled.

Annual values as a table · MWh
Reported annual net generation. Missing years are not filled.
Calendar yearNet generation · MWhEvidence
201518,878,623MWhreported · final
201619,011,492MWhreported · final
201720,983,990MWhreported · final
201821,042,561MWhreported · final
201916,639,421MWhreported · final
202020,290,172MWhreported · final
202118,325,318MWhreported · final
202221,176,202MWhreported · final
202315,582,026MWhreported · final
202415,443,458MWhreported · final

Sum of unique plant x prime-mover x fuel rows per year; negative values retained; missing years absent, not zero; no monthly curve inferred

Why capacity and output differ: field note ↗

Ownership & operation

Ownership basisHow a generator's owners were established: from EIA-860's ownership schedule (reported), from EIA's rule that a unit absent from a complete schedule is wholly owned by its operator (derived), or unknown.Definition ↗

Operating nameplate MW x ownership fraction, once per generator; reported schedule or EIA-860 schedule-4 default. Ownership source & rules ↗

Generators at this plant

Unscaled nameplateA generator’s rated maximum power, in MW. Capacity is a rating, not how much electricity it produced.Definition ↗
33 generators, including non-operating units where reported. Status is the inventory-year status.
GeneratorTechnology / statusWhether a generator or project is operating, planned, on standby or retired, as its source reports it.Definition ↗NameplateA generator’s rated maximum power, in MW. Capacity is a rating, not how much electricity it produced.Definition ↗ · MWOwnership basisHow a generator's owners were established: from EIA-860's ownership schedule (reported), from EIA's rule that a unit absent from a complete schedule is wholly owned by its operator (derived), or unknown.Definition ↗
1 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

10 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

11 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

12 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

13 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

14 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

15 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

16 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

17 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

18 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

19 Conventional Hydroelectricoperating (OP)600MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 600MW owned · reported, derived

2 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

20 Conventional Hydroelectricoperating (OP)600MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 600MW owned · reported, derived

21 Conventional Hydroelectricoperating (OP)600MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 600MW owned · reported, derived

22 Conventional Hydroelectricoperating (OP)805MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 805MW owned · reported, derived

23 Conventional Hydroelectricoperating (OP)805MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 805MW owned · reported, derived

24 Conventional Hydroelectricoperating (OP)805MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 805MW owned · reported, derived

3 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

4 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

5 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

6 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

7 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

8 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

9 Conventional Hydroelectricoperating (OP)125MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 125MW owned · reported, derived

LS1 Conventional Hydroelectricoperating (OP)10MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 10MW owned · reported, derived

LS2 Conventional Hydroelectricoperating (OP)10MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 10MW owned · reported, derived

LS3 Conventional Hydroelectricoperating (OP)10MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 10MW owned · reported, derived

PG10 Hydroelectric Pumped StoragePumped-storage hydrooperating (OP)53.5MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 53.5MW owned · reported, derived

PG11 Hydroelectric Pumped StoragePumped-storage hydrooperating (OP)53.5MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 53.5MW owned · reported, derived

PG12 Hydroelectric Pumped StoragePumped-storage hydrooperating (OP)53.5MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 53.5MW owned · reported, derived

PG7 Hydroelectric Pumped StoragePumped-storage hydrooperating (OP)50MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 50MW owned · reported, derived

PG8 Hydroelectric Pumped StoragePumped-storage hydrooperating (OP)50MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 50MW owned · reported, derived

PG9 Hydroelectric Pumped StoragePumped-storage hydrooperating (OP)53.5MW
EIA schedule default · derived

Generator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived)

Bureau of Reclamation · 1 fraction · 53.5MW owned · reported, derived

Dam and river

Reviewed identity · 2026-09-21
  • Grand Coulee DamNational Inventory of Dams WA00262· Power plant is included in the EHA. Hydropower is not reported as a purpose in any dam inventory.
    usace-nid
  • Grand Coulee DamUSACE CWMS location NWDP GCL · USACE's NIDID agency-alias group maps NID WA00262 (this plant's reviewed dam) to NWDP location GCL; CWMS location 'Grand Coulee Dam' is a PROJECT in WA, 0.26 km from the EIA plant point; its name shares 'grand', 'coulee' with the NID dam name
    usace-cwms-history
  • Grand CouleeColumbia River
    EHA hc0021_p01ornl-eha-2026
  • GRanD reservoir
    310ornl-hilarri-v4
  • HUC-12 watershed
    170200050203ornl-hilarri-v4
  • NHDPlus reach
    23057946ornl-hilarri-v4

EHA 2026 EIA_PtID 6163 = EIA plant; state WA; EHA point 0.00 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00262 (Grand Coulee Dam, Columbia River), NID point 0.26 km from EIA point; NID purposes: Flood Risk Reduction;Irrigation. These rows identify the same structures across inventories; they carry no generation, storage or flow figures.Link evidence ↗

River and reservoir · January 2024 cold spell

USACE CWMS · revised series

USACE's revised (CBT-REV) river and reservoir series at the project this plant belongs to, as the CWMS Data API served them. Water quantities, not generation: the API serves no generation series for this project, and the plant's generation on this page is EIA-923's. 2024-01-10 09:00 UTC to 2024-01-20 08:00 UTC: 240 hours, hour ending, UTC, the same hours as January 2024 cold spell.

Forebay elevationft NGVD29Forebay elevation: The reading at the stamp: the end of each hour shown. The axis spans this window’s range, not zero.
1,280.51,2811,281.51,2821,282.5Jan 11Jan 12Jan 13Jan 14Jan 15Jan 16Jan 17Jan 18Jan 19Jan 20
Daily inflow · OutflowcfsDaily inflow: The mean over one US/Pacific local day, stamped at the local midnight that ends it (08:00Z in PST, 07:00Z in PDT). Outflow: The mean over the hour ending at the stamp, the same hour-ending convention as the episode.
050k100k150kJan 11Jan 12Jan 13Jan 14Jan 15Jan 16Jan 17Jan 18Jan 19Jan 20Daily inflowOutflow

Point at a chart, or move the slider, to read one hour.

  • Forebay elevation · ft NGVD29The reading at the stamp: the end of each hour shown. 240 of 240 hours with a value.GCL.Elev-Forebay.Inst.1Hour.0.CBT-REV
    CDA query ↗retrieved 2026-09-29 05:01:14 UTC
  • Daily inflow · cfsThe mean over one US/Pacific local day, stamped at the local midnight that ends it (08:00Z in PST, 07:00Z in PDT). 10 of 10 days with a value.GCL.Flow-In.Ave.~1Day.1Day.CBT-REV
    CDA query ↗retrieved 2026-09-29 05:01:16 UTC
  • Outflow · cfsThe mean over the hour ending at the stamp, the same hour-ending convention as the episode. 240 of 240 hours with a value.GCL.Flow-Out.Ave.1Hour.1Hour.CBT-REV
    CDA query ↗retrieved 2026-09-29 05:01:19 UTC
  • Storage · ac-ft · not shownUSACE's hourly storage series is not active storage. USACE's system map bounds it at 3,921,900 to 9,107,400 acre-feet; that span, 5,185,500 acre-feet, equals the usable storage USACE's project page gives between the 1,208 ft minimum pool and the 1,290 ft full pool, which places the series' floor at the minimum pool: its values count the water below that pool. Nor is it the total on any published table: USACE's own CWMS levels for this location put full pool at 9,715,346 acre-feet, USBR publishes 9,386,000 and 9,652,000, and neither agency names the elevation-storage table behind the series. Active storage is never computed here.USACE system map (storage-series bounds) ↗ · USACE project page (usable storage 1,208-1,290 ft) ↗ · USACE CWMS storage levels at GCL ↗ · USACE Grand Coulee fact sheet ↗ · USBR Grand Coulee statistics (capacities) ↗ · USBR Grand Coulee Dam project data ↗GCL.Stor.Inst.1Hour.0.CBT-REV
    Not in this release

The API serves these series unversioned: USACE revises values in place, so a later retrieval can differ. These are the publisher's revised series as served at the retrieval time recorded with each query. Each value keeps the CWMS quality code it was served with; code 0 is CWMS's code for an unscreened value. A value served with CDA's missing-value placeholder, or with a code that marks it missing or rejected, is shown as missing. Codes served here: 0. Keyed by USACE’s own alias: USACE's NIDID agency-alias group maps NID WA00262 (this plant's reviewed dam) to NWDP location GCL; CWMS location 'Grand Coulee Dam' is a PROJECT in WA, 0.26 km from the EIA plant point; its name shares 'grand', 'coulee' with the NID dam name. NIDID alias group ↗ · Location record ↗ · Source record. U.S. Army Corps of Engineers, Northwestern Division, CWMS Data API (revised CBT series, as served at retrieval). Checks: water.units_match_declared passed · water.missing_stays_null passed · water.location_key_verified passed · water.series_complete passed.

Every hour as a table
Hourly values at the hour-ending UTC stamp; a daily value sits on the row of the local midnight that ends its day. Blank cells were not served.
Hour ending (UTC)Local timeForebay elevation · ft NGVD29Outflow · cfsDaily inflow · cfs
2024-01-10 09:00Jan 10, 1:00 AM PST1,281.338,700
2024-01-10 10:00Jan 10, 2:00 AM PST1,281.438,700
2024-01-10 11:00Jan 10, 3:00 AM PST1,281.537,700
2024-01-10 12:00Jan 10, 4:00 AM PST1,281.442,200
2024-01-10 13:00Jan 10, 5:00 AM PST1,281.450,900
2024-01-10 14:00Jan 10, 6:00 AM PST1,281.459,500
2024-01-10 15:00Jan 10, 7:00 AM PST1,281.474,900
2024-01-10 16:00Jan 10, 8:00 AM PST1,281.389,500
2024-01-10 17:00Jan 10, 9:00 AM PST1,281.477,200
2024-01-10 18:00Jan 10, 10:00 AM PST1,281.549,600
2024-01-10 19:00Jan 10, 11:00 AM PST1,281.542,300
2024-01-10 20:00Jan 10, 12:00 PM PST1,281.531,900
2024-01-10 21:00Jan 10, 1:00 PM PST1,281.527,300
2024-01-10 22:00Jan 10, 2:00 PM PST1,281.532,200
2024-01-10 23:00Jan 10, 3:00 PM PST1,281.526,200
2024-01-11 00:00Jan 10, 4:00 PM PST1,281.725,600
2024-01-11 01:00Jan 10, 5:00 PM PST1,281.760,200
2024-01-11 02:00Jan 10, 6:00 PM PST1,281.761,300
2024-01-11 03:00Jan 10, 7:00 PM PST1,281.772,800
2024-01-11 04:00Jan 10, 8:00 PM PST1,281.761,700
2024-01-11 05:00Jan 10, 9:00 PM PST1,281.855,300
2024-01-11 06:00Jan 10, 10:00 PM PST1,281.846,200
2024-01-11 07:00Jan 10, 11:00 PM PST1,281.944,600
2024-01-11 08:00Jan 11, 12:00 AM PST1,281.939,30072,300mean of 2024-01-10
2024-01-11 09:00Jan 11, 1:00 AM PST1,281.939,500
2024-01-11 10:00Jan 11, 2:00 AM PST1,281.931,000
2024-01-11 11:00Jan 11, 3:00 AM PST1,281.927,300
2024-01-11 12:00Jan 11, 4:00 AM PST1,28230,500
2024-01-11 13:00Jan 11, 5:00 AM PST1,28235,000
2024-01-11 14:00Jan 11, 6:00 AM PST1,282.145,100
2024-01-11 15:00Jan 11, 7:00 AM PST1,28261,200
2024-01-11 16:00Jan 11, 8:00 AM PST1,28279,700
2024-01-11 17:00Jan 11, 9:00 AM PST1,28279,800
2024-01-11 18:00Jan 11, 10:00 AM PST1,281.979,800
2024-01-11 19:00Jan 11, 11:00 AM PST1,281.974,700
2024-01-11 20:00Jan 11, 12:00 PM PST1,28266,400
2024-01-11 21:00Jan 11, 1:00 PM PST1,28257,200
2024-01-11 22:00Jan 11, 2:00 PM PST1,282.138,600
2024-01-11 23:00Jan 11, 3:00 PM PST1,282.137,200
2024-01-12 00:00Jan 11, 4:00 PM PST1,282.145,200
2024-01-12 01:00Jan 11, 5:00 PM PST1,28263,000
2024-01-12 02:00Jan 11, 6:00 PM PST1,28280,000
2024-01-12 03:00Jan 11, 7:00 PM PST1,28283,700
2024-01-12 04:00Jan 11, 8:00 PM PST1,282.173,500
2024-01-12 05:00Jan 11, 9:00 PM PST1,282.164,800
2024-01-12 06:00Jan 11, 10:00 PM PST1,282.263,000
2024-01-12 07:00Jan 11, 11:00 PM PST1,282.255,900
2024-01-12 08:00Jan 12, 12:00 AM PST1,282.148,70066,200mean of 2024-01-11
2024-01-12 09:00Jan 12, 1:00 AM PST1,282.144,600
2024-01-12 10:00Jan 12, 2:00 AM PST1,282.142,100
2024-01-12 11:00Jan 12, 3:00 AM PST1,282.243,400
2024-01-12 12:00Jan 12, 4:00 AM PST1,282.244,500
2024-01-12 13:00Jan 12, 5:00 AM PST1,282.258,000
2024-01-12 14:00Jan 12, 6:00 AM PST1,282.271,100
2024-01-12 15:00Jan 12, 7:00 AM PST1,282.289,700
2024-01-12 16:00Jan 12, 8:00 AM PST1,282.1102,400
2024-01-12 17:00Jan 12, 9:00 AM PST1,282107,700
2024-01-12 18:00Jan 12, 10:00 AM PST1,282121,500
2024-01-12 19:00Jan 12, 11:00 AM PST1,282.1122,400
2024-01-12 20:00Jan 12, 12:00 PM PST1,282.1122,500
2024-01-12 21:00Jan 12, 1:00 PM PST1,282.1112,700
2024-01-12 22:00Jan 12, 2:00 PM PST1,282.194,800
2024-01-12 23:00Jan 12, 3:00 PM PST1,28283,700
2024-01-13 00:00Jan 12, 4:00 PM PST1,281.989,000
2024-01-13 01:00Jan 12, 5:00 PM PST1,281.9100,700
2024-01-13 02:00Jan 12, 6:00 PM PST1,281.999,300
2024-01-13 03:00Jan 12, 7:00 PM PST1,281.996,400
2024-01-13 04:00Jan 12, 8:00 PM PST1,281.9105,200
2024-01-13 05:00Jan 12, 9:00 PM PST1,281.9108,300
2024-01-13 06:00Jan 12, 10:00 PM PST1,281.999,300
2024-01-13 07:00Jan 12, 11:00 PM PST1,281.991,600
2024-01-13 08:00Jan 13, 12:00 AM PST1,281.974,60079,200mean of 2024-01-12
2024-01-13 09:00Jan 13, 1:00 AM PST1,281.991,400
2024-01-13 10:00Jan 13, 2:00 AM PST1,281.987,900
2024-01-13 11:00Jan 13, 3:00 AM PST1,281.985,300
2024-01-13 12:00Jan 13, 4:00 AM PST1,281.898,600
2024-01-13 13:00Jan 13, 5:00 AM PST1,281.7103,300
2024-01-13 14:00Jan 13, 6:00 AM PST1,281.898,500
2024-01-13 15:00Jan 13, 7:00 AM PST1,281.7102,100
2024-01-13 16:00Jan 13, 8:00 AM PST1,281.7115,700
2024-01-13 17:00Jan 13, 9:00 AM PST1,281.6116,200
2024-01-13 18:00Jan 13, 10:00 AM PST1,281.6116,600
2024-01-13 19:00Jan 13, 11:00 AM PST1,281.6119,400
2024-01-13 20:00Jan 13, 12:00 PM PST1,281.5132,300
2024-01-13 21:00Jan 13, 1:00 PM PST1,281.5139,500
2024-01-13 22:00Jan 13, 2:00 PM PST1,281.5148,000
2024-01-13 23:00Jan 13, 3:00 PM PST1,281.4138,000
2024-01-14 00:00Jan 13, 4:00 PM PST1,281.4133,300
2024-01-14 01:00Jan 13, 5:00 PM PST1,281.3137,200
2024-01-14 02:00Jan 13, 6:00 PM PST1,281.3138,200
2024-01-14 03:00Jan 13, 7:00 PM PST1,281.2133,700
2024-01-14 04:00Jan 13, 8:00 PM PST1,281.2130,600
2024-01-14 05:00Jan 13, 9:00 PM PST1,281.1130,700
2024-01-14 06:00Jan 13, 10:00 PM PST1,281.1112,200
2024-01-14 07:00Jan 13, 11:00 PM PST1,281.289,600
2024-01-14 08:00Jan 14, 12:00 AM PST1,281.293,90088,000mean of 2024-01-13
2024-01-14 09:00Jan 14, 1:00 AM PST1,281.283,800
2024-01-14 10:00Jan 14, 2:00 AM PST1,281.185,600
2024-01-14 11:00Jan 14, 3:00 AM PST1,28179,600
2024-01-14 12:00Jan 14, 4:00 AM PST1,28177,600
2024-01-14 13:00Jan 14, 5:00 AM PST1,28187,600
2024-01-14 14:00Jan 14, 6:00 AM PST1,28196,100
2024-01-14 15:00Jan 14, 7:00 AM PST1,281102,600
2024-01-14 16:00Jan 14, 8:00 AM PST1,281107,900
2024-01-14 17:00Jan 14, 9:00 AM PST1,280.9122,100
2024-01-14 18:00Jan 14, 10:00 AM PST1,280.8120,300
2024-01-14 19:00Jan 14, 11:00 AM PST1,280.8115,700
2024-01-14 20:00Jan 14, 12:00 PM PST1,280.888,500
2024-01-14 21:00Jan 14, 1:00 PM PST1,280.975,200
2024-01-14 22:00Jan 14, 2:00 PM PST1,280.963,900
2024-01-14 23:00Jan 14, 3:00 PM PST1,280.964,100
2024-01-15 00:00Jan 14, 4:00 PM PST1,280.874,400
2024-01-15 01:00Jan 14, 5:00 PM PST1,280.798,200
2024-01-15 02:00Jan 14, 6:00 PM PST1,280.7118,900
2024-01-15 03:00Jan 14, 7:00 PM PST1,280.8127,700
2024-01-15 04:00Jan 14, 8:00 PM PST1,280.8127,100
2024-01-15 05:00Jan 14, 9:00 PM PST1,280.8113,600
2024-01-15 06:00Jan 14, 10:00 PM PST1,280.8104,800
2024-01-15 07:00Jan 14, 11:00 PM PST1,280.889,800
2024-01-15 08:00Jan 15, 12:00 AM PST1,280.781,20079,100mean of 2024-01-14
2024-01-15 09:00Jan 15, 1:00 AM PST1,280.768,500
2024-01-15 10:00Jan 15, 2:00 AM PST1,280.848,500
2024-01-15 11:00Jan 15, 3:00 AM PST1,280.838,600
2024-01-15 12:00Jan 15, 4:00 AM PST1,280.840,700
2024-01-15 13:00Jan 15, 5:00 AM PST1,280.869,300
2024-01-15 14:00Jan 15, 6:00 AM PST1,280.793,600
2024-01-15 15:00Jan 15, 7:00 AM PST1,280.6122,800
2024-01-15 16:00Jan 15, 8:00 AM PST1,280.6126,400
2024-01-15 17:00Jan 15, 9:00 AM PST1,280.6128,400
2024-01-15 18:00Jan 15, 10:00 AM PST1,280.7122,000
2024-01-15 19:00Jan 15, 11:00 AM PST1,280.799,000
2024-01-15 20:00Jan 15, 12:00 PM PST1,280.779,100
2024-01-15 21:00Jan 15, 1:00 PM PST1,280.669,000
2024-01-15 22:00Jan 15, 2:00 PM PST1,280.670,400
2024-01-15 23:00Jan 15, 3:00 PM PST1,280.672,900
2024-01-16 00:00Jan 15, 4:00 PM PST1,280.679,200
2024-01-16 01:00Jan 15, 5:00 PM PST1,280.692,600
2024-01-16 02:00Jan 15, 6:00 PM PST1,280.694,500
2024-01-16 03:00Jan 15, 7:00 PM PST1,280.778,600
2024-01-16 04:00Jan 15, 8:00 PM PST1,280.763,400
2024-01-16 05:00Jan 15, 9:00 PM PST1,280.657,300
2024-01-16 06:00Jan 15, 10:00 PM PST1,280.659,800
2024-01-16 07:00Jan 15, 11:00 PM PST1,280.754,600
2024-01-16 08:00Jan 16, 12:00 AM PST1,280.846,90080,900mean of 2024-01-15
2024-01-16 09:00Jan 16, 1:00 AM PST1,280.933,800
2024-01-16 10:00Jan 16, 2:00 AM PST1,28137,200
2024-01-16 11:00Jan 16, 3:00 AM PST1,280.942,100
2024-01-16 12:00Jan 16, 4:00 AM PST1,280.955,500
2024-01-16 13:00Jan 16, 5:00 AM PST1,280.865,000
2024-01-16 14:00Jan 16, 6:00 AM PST1,280.887,900
2024-01-16 15:00Jan 16, 7:00 AM PST1,280.8125,400
2024-01-16 16:00Jan 16, 8:00 AM PST1,280.8123,500
2024-01-16 17:00Jan 16, 9:00 AM PST1,280.8126,000
2024-01-16 18:00Jan 16, 10:00 AM PST1,280.8114,500
2024-01-16 19:00Jan 16, 11:00 AM PST1,280.8111,600
2024-01-16 20:00Jan 16, 12:00 PM PST1,280.8103,200
2024-01-16 21:00Jan 16, 1:00 PM PST1,280.791,100
2024-01-16 22:00Jan 16, 2:00 PM PST1,280.788,500
2024-01-16 23:00Jan 16, 3:00 PM PST1,280.786,700
2024-01-17 00:00Jan 16, 4:00 PM PST1,280.890,500
2024-01-17 01:00Jan 16, 5:00 PM PST1,280.789,100
2024-01-17 02:00Jan 16, 6:00 PM PST1,280.788,300
2024-01-17 03:00Jan 16, 7:00 PM PST1,280.784,800
2024-01-17 04:00Jan 16, 8:00 PM PST1,280.878,000
2024-01-17 05:00Jan 16, 9:00 PM PST1,280.863,200
2024-01-17 06:00Jan 16, 10:00 PM PST1,280.949,100
2024-01-17 07:00Jan 16, 11:00 PM PST1,280.948,500
2024-01-17 08:00Jan 17, 12:00 AM PST1,280.942,70083,300mean of 2024-01-16
2024-01-17 09:00Jan 17, 1:00 AM PST1,280.953,100
2024-01-17 10:00Jan 17, 2:00 AM PST1,28137,200
2024-01-17 11:00Jan 17, 3:00 AM PST1,28140,700
2024-01-17 12:00Jan 17, 4:00 AM PST1,28143,800
2024-01-17 13:00Jan 17, 5:00 AM PST1,281.149,000
2024-01-17 14:00Jan 17, 6:00 AM PST1,28166,000
2024-01-17 15:00Jan 17, 7:00 AM PST1,280.997,500
2024-01-17 16:00Jan 17, 8:00 AM PST1,280.9109,100
2024-01-17 17:00Jan 17, 9:00 AM PST1,281107,400
2024-01-17 18:00Jan 17, 10:00 AM PST1,28197,800
2024-01-17 19:00Jan 17, 11:00 AM PST1,28199,300
2024-01-17 20:00Jan 17, 12:00 PM PST1,280.9105,700
2024-01-17 21:00Jan 17, 1:00 PM PST1,280.8105,400
2024-01-17 22:00Jan 17, 2:00 PM PST1,280.7105,900
2024-01-17 23:00Jan 17, 3:00 PM PST1,280.7100,100
2024-01-18 00:00Jan 17, 4:00 PM PST1,280.783,900
2024-01-18 01:00Jan 17, 5:00 PM PST1,280.876,100
2024-01-18 02:00Jan 17, 6:00 PM PST1,280.878,500
2024-01-18 03:00Jan 17, 7:00 PM PST1,280.865,500
2024-01-18 04:00Jan 17, 8:00 PM PST1,280.851,200
2024-01-18 05:00Jan 17, 9:00 PM PST1,280.842,500
2024-01-18 06:00Jan 17, 10:00 PM PST1,280.934,600
2024-01-18 07:00Jan 17, 11:00 PM PST1,28132,800
2024-01-18 08:00Jan 18, 12:00 AM PST1,28140,10077,600mean of 2024-01-17
2024-01-18 09:00Jan 18, 1:00 AM PST1,281.140,100
2024-01-18 10:00Jan 18, 2:00 AM PST1,281.141,800
2024-01-18 11:00Jan 18, 3:00 AM PST1,281.147,600
2024-01-18 12:00Jan 18, 4:00 AM PST1,281.152,400
2024-01-18 13:00Jan 18, 5:00 AM PST1,281.255,400
2024-01-18 14:00Jan 18, 6:00 AM PST1,281.261,500
2024-01-18 15:00Jan 18, 7:00 AM PST1,281.265,700
2024-01-18 16:00Jan 18, 8:00 AM PST1,281.286,000
2024-01-18 17:00Jan 18, 9:00 AM PST1,281.287,000
2024-01-18 18:00Jan 18, 10:00 AM PST1,281.280,600
2024-01-18 19:00Jan 18, 11:00 AM PST1,281.185,900
2024-01-18 20:00Jan 18, 12:00 PM PST1,281.188,800
2024-01-18 21:00Jan 18, 1:00 PM PST1,281.285,100
2024-01-18 22:00Jan 18, 2:00 PM PST1,281.278,200
2024-01-18 23:00Jan 18, 3:00 PM PST1,281.177,500
2024-01-19 00:00Jan 18, 4:00 PM PST1,281.187,800
2024-01-19 01:00Jan 18, 5:00 PM PST1,28187,400
2024-01-19 02:00Jan 18, 6:00 PM PST1,28187,900
2024-01-19 03:00Jan 18, 7:00 PM PST1,281.179,500
2024-01-19 04:00Jan 18, 8:00 PM PST1,281.264,300
2024-01-19 05:00Jan 18, 9:00 PM PST1,281.246,200
2024-01-19 06:00Jan 18, 10:00 PM PST1,281.243,300
2024-01-19 07:00Jan 18, 11:00 PM PST1,281.248,900
2024-01-19 08:00Jan 19, 12:00 AM PST1,281.246,90074,300mean of 2024-01-18
2024-01-19 09:00Jan 19, 1:00 AM PST1,281.256,000
2024-01-19 10:00Jan 19, 2:00 AM PST1,281.357,000
2024-01-19 11:00Jan 19, 3:00 AM PST1,281.360,000
2024-01-19 12:00Jan 19, 4:00 AM PST1,281.466,100
2024-01-19 13:00Jan 19, 5:00 AM PST1,281.359,900
2024-01-19 14:00Jan 19, 6:00 AM PST1,281.359,400
2024-01-19 15:00Jan 19, 7:00 AM PST1,281.278,400
2024-01-19 16:00Jan 19, 8:00 AM PST1,281.2108,700
2024-01-19 17:00Jan 19, 9:00 AM PST1,281.2100,400
2024-01-19 18:00Jan 19, 10:00 AM PST1,281.394,300
2024-01-19 19:00Jan 19, 11:00 AM PST1,281.296,900
2024-01-19 20:00Jan 19, 12:00 PM PST1,281.286,300
2024-01-19 21:00Jan 19, 1:00 PM PST1,281.372,500
2024-01-19 22:00Jan 19, 2:00 PM PST1,281.271,500
2024-01-19 23:00Jan 19, 3:00 PM PST1,281.169,800
2024-01-20 00:00Jan 19, 4:00 PM PST1,281.276,400
2024-01-20 01:00Jan 19, 5:00 PM PST1,281.278,000
2024-01-20 02:00Jan 19, 6:00 PM PST1,281.283,600
2024-01-20 03:00Jan 19, 7:00 PM PST1,281.280,300
2024-01-20 04:00Jan 19, 8:00 PM PST1,281.370,700
2024-01-20 05:00Jan 19, 9:00 PM PST1,281.351,900
2024-01-20 06:00Jan 19, 10:00 PM PST1,281.350,800
2024-01-20 07:00Jan 19, 11:00 PM PST1,281.343,900
2024-01-20 08:00Jan 20, 12:00 AM PST1,281.441,10079,600mean of 2024-01-19

CO2 filed by EPA-monitored units

2024

This plant has no coal, gas, oil or waste generator, so it has no combustion unit for EPA to monitor and no CEMS data exists. That is not a claim of zero emissions: the atlas reports only what EPA-monitored units filed. Source

StorageBatteries, pumped hydro and other systems that store electricity for later use.Definition ↗ · Pumped-storage hydro

Co-located with hydro

6 operating storage unitsbeside 6,495 MW of other generation. Stores electricity; does not generate. Net output is net of chargingEnergy taken in to charge, energy returned, and their difference. Charging can make net generation negative.Definition ↗.

Storage discharge capacity, operating storage units
314MW
Source & method

Sum of nameplate MW over operating generators whose prime mover is a storage technology (BA, PS, FW, CE, CP, ES); a discharge rating, counted as its own resource row, never merged with generation MW

2024 inventory · reported · derived · valid · final

6 of 6 storage units included.

out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Storage charge capacity, operating storage units
Not applicable
Source & method

Sum of reported maximum charge rate MW (EIA-860 Schedule 3 Part B) over operating storage units that report it; batteries, flywheels and compressed air only

2024 inventory · reported · derived · not_applicable · final

0 of 6 operating storage units included.

EIA-860 collects charge rates for batteries, flywheels and compressed air only

core_eia860__scd_generators_energy_storage.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Storage energy capacity, operating storage units
Not applicable
Source & method

Sum of reported nameplate energy capacity MWh over operating storage units (EIA-860 line 34: batteries, flywheels, compressed air; null for pumped and thermal storage); unknown stays unknown

2024 inventory · reported · derived · not_applicable · final

0 of 6 operating storage units included.

EIA-860 collects no energy capacity for pumped or thermal storage

out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Storage duration at full discharge
Not applicable
Source & method

Nameplate energy MWh divided by nameplate MW, only when every unit has energy capacity and a positive reported discharge rate agreeing with nameplate within 0.05 MW; a nameplate ratio, not usable state of charge

2024 inventory · reported · derived · not_applicable · final

0 of 6 operating storage units with verified duration included.

Each operating unit needs energy capacity and matching positive nameplate/discharge MW; no ratio otherwise

derived: validated per-unit ratings; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Charged, discharged and net energy of the storage units by calendar year (EIA-923). Net is signed; a round-trip ratio needs twelve reported months.
YearCharged · MWhDischarged · MWhNet · MWhRound tripDischarged energy divided by charged energy over a full reported year. A description, not an efficiency rating.Definition ↗Months
20155,715MWh45,736MWh40,021MWh800 %12
20165,142MWh2,824MWh-2,318MWh55 %12
20176,226MWh9,221MWh2,995MWh148 %12
20187,273MWh35,510MWh28,237MWh488 %12
20195,974MWh14,512MWh8,538MWh243 %12
20205,732MWh19,399MWh13,667MWh338 %12
20217,001MWh8,987MWh1,986MWh128 %12
20225,835MWh15,987MWh10,152MWh274 %12
20235,506MWh2,504MWh-3,002MWh45 %12
20247,440MWh9,131MWh1,691MWh123 %12

A co-located plant's deliverable capacity is not the sum of its components (EIA-860 carries no interconnection limit). Net storage output is signed and is never added to generation shares.

Latest inventoryThe newest complete monthly inventory, with dated status and capacity changes beside the annual baseline totals.Definition ↗ · August 2026

Operating

No confirmed status or capacity changes among comparable units. Missing monthly assertions and units outside the baseline have no like-for-like comparison.

Operating nameplate capacity, latest inventoryOperating nameplate MW in this monthly inventory. Compare it with the annual baseline; do not add the two inventories together.Definition ↗
6,809MW
· provisional
Source & method

Sum of nameplate MW over generators whose current-valid EIA-860M workbook assertion has status OP; dated by the complete inventory edition; never added to the baseline aggregate

2026-08-01 · reported · derived · valid · provisional

33 of 33 current and historical generators included.

Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6163; report_date=2026-08-01

Publisher & attribution ↗ Cite this released fact ↗
Planned nameplate capacity, latest inventoryNameplate MW proposed or under construction in this monthly inventory, separate from operating MW. Planned dates are forecasts.Definition ↗
Not applicable
· provisional
Source & method

Sum of nameplate MW over generators whose current-valid EIA-860M workbook assertion is a proposal or construction stage (P, L, T, U, V, OT, TS); a proposal is not a commitment and its date is a forecast

2026-08-01 · reported · derived · not_applicable · provisional

33 of 33 current and historical generators included.

Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6163; report_date=2026-08-01

Publisher & attribution ↗ Cite this released fact ↗
Retired or cancelled nameplate capacity, latest inventory
Not applicable
· provisional
Source & method

Sum of nameplate MW over generators whose current-valid EIA-860M workbook assertion is retired, cancelled or indefinitely postponed (RE, CN, IP); retired is not demolished

2026-08-01 · reported · derived · not_applicable · provisional

33 of 33 current and historical generators included.

Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6163; report_date=2026-08-01

Publisher & attribution ↗ Cite this released fact ↗

Lifecycle of the units

Each unit's operating span from its reported operating date to its retirement date or to the August 2026 inventory (the vertical line). Dashed spans start at a planned operating date, a forecast; a short bar marks a planned retirement. Standby and out-of-service units are hatched.

Units as a table
Unit lifecycle from EIA-860M, August 2026.
UnitStateOperating sincePlannedRetiredMW
1OperatingApril 1942——125MW
10OperatingSeptember 1951——125MW
11OperatingJune 1951——125MW
12OperatingApril 1951——125MW
13OperatingOctober 1950——125MW
14OperatingJuly 1950——125MW
15OperatingApril 1950——125MW
16OperatingSeptember 1949——125MW
17OperatingJuly 1949——125MW
18OperatingMay 1949——125MW
19OperatingSeptember 1975——600MW
2OperatingJanuary 1942——125MW
20OperatingApril 1976——600MW
21OperatingDecember 1976——600MW
22OperatingMay 1978——805MW
23OperatingNovember 1979——805MW
24OperatingMay 1980——805MW
3OperatingSeptember 1941——125MW
4OperatingFebruary 1944——125MW
5OperatingNovember 1943——125MW
6OperatingAugust 1943——125MW
7OperatingOctober 1947——125MW
8OperatingFebruary 1943——125MW
9OperatingApril 1948——125MW
LS1OperatingMarch 1941——10MW
LS2OperatingMarch 1941——10MW
LS3OperatingJanuary 1951——10MW
PG10OperatingJune 1983——53.5MW
PG11OperatingNovember 1983——53.5MW
PG12OperatingApril 1984——53.5MW
PG7OperatingOctober 1973——50MW
PG8OperatingNovember 1973——50MW
PG9OperatingApril 1983——53.5MW

Independently dated by EIA-860M; the baseline facts above stay the validated edition. Planned dates are forecasts; retired is not demolished.

Claimed in Washington’s fuel mix by

CY2024

Washington Fuel Mix Disclosure claims on this plant for CY2024, the latest year loaded; several suppliers can claim one plant; a claim attributes retail sales, it is not a wire or a share of ownership

Geographic & reporting context

Balancing authority: Bonneville Power Administration

Approximate service areasAn approximate utility service area. The boundary cannot identify the supplier for a particular address.Definition ↗ containing the plant’s location. A geographic candidate, not a supply relationship.

Nearby transmission Context, not a connection

Within 3 km of the reported plant point, nearest first. BPA’s published lines, HIFLD-compiled lines of other owners and HIFLD 2022 substations; nearness does not establish an electrical connection.

Additional inventory facts

Generators listed
33count
Source & method

Generator rows for the plant in the inventory year, any status

2024 inventory · reported · derived · valid · final

out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Operating generators
33count
Source & method

Generator rows with status code OP

2024 inventory · reported · derived · valid · final

out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗
Storage discharge capacity, operating storage units
314MW
Source & method

Sum of nameplate MW over operating generators whose prime mover is a storage technology (BA, PS, FW, CE, CP, ES); a discharge rating, counted as its own resource row, never merged with generation MW

2024 inventory · reported · derived · valid · final

6 of 6 storage units included.

out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163

Publisher & attribution ↗ Cite this released fact ↗

Sources for this record

Frozen citation page ↗

Existing Hydropower Assets (EHA) Plant Database, 2026 (published 2026-07-06, revised 2026-07-16; DOI 10.21951/EHA_FY2026/3374497)

Megan M. Johnson, Shih-Chieh Kao and Rocio Uría-Martínez. 2026. Existing Hydropower Assets (EHA) Plant Database, 2026. HydroSource. Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA. DOI: 10.21951/EHA_FY2026/3374497

Only the EHA plant identifier, plant name and water body of reviewed rows are republished, as identity beside the EIA plant; EHA capacity and generation are not loaded and never enter any total. An EHA record without an EIA plant id has no entity here.

Original source ↗Method & license

Hydropower Infrastructure – LAkes, Reservoirs, and RIvers (HILARRI), Version 4 (2026-05-05; DOI 10.21951/HILARRI/3362570; links EHA 2025 plants to NID dams of 2025-08-18, GRanD v1.3, NHDPlusV2 and HUC12)

Hansen, C. H., Matson, P. G., Bozeman, B. B., Turner, S. W. D. 2026. Hydropower Infrastructure – LAkes, Reservoirs, and RIvers (HILARRI) v4. HydroSource. Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA. DOI: 10.21951/HILARRI/3362570

A crosswalk of identifiers, not attributes: the HILARRI row id and its GRanD, NHDPlusV2 flowline and HUC12 ids are republished for reviewed rows only. HILARRI's own quality flags are kept on each row; a link is not a reservoir volume, a flow or a generation series.

Original source ↗Method & license

National Inventory of Dams, national export dated 2026-09-11 (dam id, name, river, purposes and coordinates used to verify each HILARRI dam link)

U.S. Army Corps of Engineers, National Inventory of Dams (export of 2026-09-11)

The NID id and dam name identify the structure the plant sits at, as HILARRI links it and the 2026-09-11 export confirms it. NID purposes are recorded on the row as the inventory states them (Grand Coulee's NID record lists no hydroelectric purpose). Dam height, storage and hazard fields are not loaded.

Original source ↗Method & license

Display names and aliases (pipeline/config/crosswalks/aliases.csv)

Display names verified against each organization's own website; EIA legal names retained as aliases

A display name is the name an organization uses for itself; the EIA name stays searchable and on the record. Each row cites the page that shows the name.

Original source ↗Method & license

PUDL v2026.9.0, out_eia__yearly_plants

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)

Original source ↗Method & license

PUDL v2026.9.0, out_eia__yearly_generators

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)

Original source ↗Method & license

PUDL v2026.9.0, out_eia860__yearly_ownership

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)

Original source ↗Method & license

PUDL v2026.9.0, out_eia923__yearly_generation_fuel_combined

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)

Original source ↗Method & license

CWMS Data API revised (CBT-REV) series for the January 2024 episode window at Grand Coulee (office NWDP, location GCL: hourly forebay elevation, hourly outflow, daily inflow), Lower Granite (LWG: hourly outflow and spill) and Bonneville (BON: hourly outflow and tailwater elevation), the location records that key the four Lower Snake dams (LWG, LGS, LMN, IHR) and every reviewed dam USACE's NIDID alias group names

U.S. Army Corps of Engineers, Northwestern Division, CWMS Data API (revised CBT series, as served at retrieval)

USACE's revised hourly and daily series for three projects over one episode window, and the keys of six, as the CWMS Data API served them at the retrieval time recorded in the manifest. The API serves them unversioned and USACE revises values in place, so a later retrieval can differ; each value keeps the CWMS quality code it was served with. Elevation is feet above the location's own vertical datum; flows are cubic feet per second. The Lower Snake series this API served nothing for come from USACE's Dataquery (usace-dataquery-history), never mixed with these. Water quantities, not generation. Grand Coulee storage is not shown until its capacity-table basis is settled.

Original source ↗Method & license

Release 20260929T050546Z-51ae0f7d3c78 · Record JSON