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PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/6163
EIA plant 6163

Grand Coulee · Grant · WA

Grand Coulee

Operated by U S Bureau of Reclamation

Annual generation15,443,458 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextBonneville Power AdministrationBalancing authority or NERC region

Published location

Where is Grand Coulee?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

47.957511, -118.977323

Open the interactive map ↗

Map data © OpenStreetMap contributors

Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.

Equipment mix

Operating capacity by technology

TechnologyConventional Hydroelectric6,495 MW represented
TechnologyHydroelectric Pumped Storage314 MW represented

Grouped from this plant’s represented generator records. Use the WA plant index for regional peers.

See the evidence

Electricity output across the year

Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.

11,371,333
2905,648
31,152,431
41,096,581
51,380,877
61,562,624
71,832,177
81,514,268
9782,494
10914,449
111,410,762
121,519,814

MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.

Read the chart as a table
Electricity output across the year — MWh net generation
RecordMWh net generation
11,371,333
2905,648
31,152,431
41,096,581
51,380,877
61,562,624
71,832,177
81,514,268
9782,494
10914,449
111,410,762
121,519,814

2024 monthly net generation

MonthNet generation
11,371,333 MWh
2905,648 MWh
31,152,431 MWh
41,096,581 MWh
51,380,877 MWh
61,562,624 MWh
71,832,177 MWh
81,514,268 MWh
9782,494 MWh
10914,449 MWh
111,410,762 MWh
121,519,814 MWh

Operating generators

IDTechnologyFuelMWStatus
22Conventional HydroelectricWAT805OP
23Conventional HydroelectricWAT805OP
24Conventional HydroelectricWAT805OP
19Conventional HydroelectricWAT600OP
20Conventional HydroelectricWAT600OP
21Conventional HydroelectricWAT600OP
1Conventional HydroelectricWAT125OP
10Conventional HydroelectricWAT125OP
11Conventional HydroelectricWAT125OP
12Conventional HydroelectricWAT125OP
13Conventional HydroelectricWAT125OP
14Conventional HydroelectricWAT125OP
15Conventional HydroelectricWAT125OP
16Conventional HydroelectricWAT125OP
17Conventional HydroelectricWAT125OP
18Conventional HydroelectricWAT125OP
2Conventional HydroelectricWAT125OP
3Conventional HydroelectricWAT125OP
4Conventional HydroelectricWAT125OP
5Conventional HydroelectricWAT125OP
6Conventional HydroelectricWAT125OP
7Conventional HydroelectricWAT125OP
8Conventional HydroelectricWAT125OP
9Conventional HydroelectricWAT125OP
PG10Hydroelectric Pumped StorageWAT53.5OP
PG11Hydroelectric Pumped StorageWAT53.5OP
PG12Hydroelectric Pumped StorageWAT53.5OP
PG9Hydroelectric Pumped StorageWAT53.5OP
PG7Hydroelectric Pumped StorageWAT50OP
PG8Hydroelectric Pumped StorageWAT50OP

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Identity, technology and limitations
EIA plant ID
6163
Sector
Electric Utility
Water source
Columbia River
Data edition
2024-final

Use this record

Questions this evidence can answer

01What exactly is this record?

Use the name, place, date and identifiers above to confirm that you have the right Grand Coulee power plant: capacity and generation | PowerPlantFacts record.

02What does the evidence establish?

Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.

03What should I verify next?

Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.

A closer look at Grand Coulee

Variation in the published months

Across 12 numeric monthly generation entries, 7 has the highest recorded value (1,832,177 MWh) and 9 the lowest (782,494 MWh). Their difference is 1,049,683 MWh. Missing months have not been treated as zero.

Reading the MW column

In the 30 numeric rows displayed in this table, MW ranges from 50 (PG7, PG8) to 805 (22, 23, 24). The difference is 755 in the column's stated units. This summary covers the displayed rows and retains the table's period and scope.

Generator capacity in different operating conditions

Generator IDTechnologyNameplate MWSummer MWWinter MWMinimum load MW
1Conventional Hydroelectric125.0125.0125.037.5
10Conventional Hydroelectric125.0125.0125.037.5
11Conventional Hydroelectric125.0125.0125.037.5
12Conventional Hydroelectric125.0125.0125.037.5
13Conventional Hydroelectric125.0125.0125.037.5
14Conventional Hydroelectric125.0125.0125.037.5
15Conventional Hydroelectric125.0125.0125.037.5
16Conventional Hydroelectric125.0125.0125.037.5
17Conventional Hydroelectric125.0125.0125.037.5
18Conventional Hydroelectric125.0125.0125.037.5
19Conventional Hydroelectric600.0690.0690.0180.0
2Conventional Hydroelectric125.0125.0125.037.5
20Conventional Hydroelectric600.0690.0690.0180.0
21Conventional Hydroelectric600.0690.0690.0180.0
22Conventional Hydroelectric805.0805.0805.0241.5
23Conventional Hydroelectric805.0805.0805.0241.5
24Conventional Hydroelectric805.0805.0805.0241.5
3Conventional Hydroelectric125.0125.0125.037.5
4Conventional Hydroelectric125.0125.0125.037.5
5Conventional Hydroelectric125.0125.0125.037.5
6Conventional Hydroelectric125.0125.0125.037.5
7Conventional Hydroelectric125.0125.0125.037.5
8Conventional Hydroelectric125.0125.0125.037.5
9Conventional Hydroelectric125.0125.0125.037.5
LS1Conventional Hydroelectric10.010.010.03.0
LS2Conventional Hydroelectric10.010.010.03.0
LS3Conventional Hydroelectric10.010.010.03.0
PG10Hydroelectric Pumped Storage53.553.553.516.1
PG11Hydroelectric Pumped Storage53.553.553.516.1
PG12Hydroelectric Pumped Storage53.553.553.516.1
PG7Hydroelectric Pumped Storage50.050.050.015.0
PG8Hydroelectric Pumped Storage50.050.050.015.0
PG9Hydroelectric Pumped Storage53.553.553.516.1

EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.

Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.

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