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PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/56499
EIA plant 56499

Chester · Liberty · MT

Tiber Dam Hydroelectric Plant

Operated by Tiber Montana LLC

Annual generation36,106 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextWestern Area Power Administration UGP WestBalancing authority or NERC region

Published location

Where is Tiber Dam Hydroelectric Plant?

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

48.318000, -111.101800

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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.

2024 monthly net generation

MonthNet generation
13,218 MWh
22,992 MWh
33,076 MWh
43,022 MWh
53,150 MWh
62,963 MWh
73,069 MWh
83,020 MWh
92,879 MWh
102,943 MWh
112,800 MWh
122,974 MWh

Operating generators

IDTechnologyFuelMWStatus
HY1Conventional HydroelectricWAT7.5OP

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Identity, technology and limitations
EIA plant ID
56499
Sector
IPP Non-CHP
Water source
Marias River
Data edition
2024-final