MWPowerPlantFacts

Data last collected:

EIA plant 2195

Thompson Falls · Sanders · MT

Thompson Falls

Operated by NorthWestern Energy (MT Hydro)

Annual generation436,437 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextNorthWestern Energy (NWMT)Balancing authority or NERC region

Published location

Where is Thompson Falls?

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

47.593155, -115.358237

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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 Hydroelectric98.1 MW represented

Grouped from this plant’s represented generator records. Use the MT 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.

136,293
227,314
334,821
441,939
556,241
659,761
744,977
825,586
923,394
1028,380
1123,519
1234,212

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
136,293
227,314
334,821
441,939
556,241
659,761
744,977
825,586
923,394
1028,380
1123,519
1234,212

2024 monthly net generation

MonthNet generation
136,293 MWh
227,314 MWh
334,821 MWh
441,939 MWh
556,241 MWh
659,761 MWh
744,977 MWh
825,586 MWh
923,394 MWh
1028,380 MWh
1123,519 MWh
1234,212 MWh

Operating generators

IDTechnologyFuelMWStatus
TF7Conventional HydroelectricWAT57.1OP
TF1Conventional HydroelectricWAT7OP
TF2Conventional HydroelectricWAT7OP
TF3Conventional HydroelectricWAT7OP
TF5Conventional HydroelectricWAT7OP
TF6Conventional HydroelectricWAT7OP
TF4Conventional HydroelectricWAT6OP

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Similar-capacity plants in the same state

Identity, technology and limitations
EIA plant ID
2195
Sector
Electric Utility
Water source
Clark Fork River
Data edition
2024-final

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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 Thompson Falls 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?

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A closer look at Thompson Falls

Variation in the published months

Across 12 numeric monthly generation entries, 6 has the highest recorded value (59,761 MWh) and 9 the lowest (23,394 MWh). Their difference is 36,367 MWh. Missing months have not been treated as zero.

Reading the MW column

In the 7 numeric rows displayed in this table, MW ranges from 6 (TF4) to 57.1 (TF7). The difference is 51.1 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
TF1Conventional Hydroelectric7.07.57.51.0
TF2Conventional Hydroelectric7.06.56.51.0
TF3Conventional Hydroelectric7.07.57.51.0
TF4Conventional Hydroelectric6.06.56.51.0
TF5Conventional Hydroelectric7.06.06.51.0
TF6Conventional Hydroelectric7.06.56.51.0
TF7Conventional Hydroelectric57.153.053.010.0

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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