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Data last collected:

EIA plant 3746

Whitingham · Windham · VT

Harriman

Operated by Great River Hydro, LLC

Annual generation91,466 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextISO New England Inc.Balancing authority or NERC region

Published location

Where is Harriman?

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

42.793600, -72.914400

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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 Hydroelectric33.6 MW represented

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

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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.

113,956
215,278
318,276
411,774
55,966
61,767
73,064
86,975
93,544
102,224
11782
127,860

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
113,956
215,278
318,276
411,774
55,966
61,767
73,064
86,975
93,544
102,224
11782
127,860

2024 monthly net generation

MonthNet generation
113,956 MWh
215,278 MWh
318,276 MWh
411,774 MWh
55,966 MWh
61,767 MWh
73,064 MWh
86,975 MWh
93,544 MWh
102,224 MWh
11782 MWh
127,860 MWh

Operating generators

IDTechnologyFuelMWStatus
GEN1Conventional HydroelectricWAT11.2OP
GEN2Conventional HydroelectricWAT11.2OP
GEN3Conventional HydroelectricWAT11.2OP

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Similar-capacity plants in the same state

Identity, technology and limitations
EIA plant ID
3746
Sector
IPP Non-CHP
Water source
Deerfield 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 Harriman power plant: capacity and generation | PowerPlantFacts record.

02What does the evidence establish?

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03What should I verify next?

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A closer look at Harriman

Variation in the published months

Across 12 numeric monthly generation entries, 3 has the highest recorded value (18,276 MWh) and 11 the lowest (782 MWh). Their difference is 17,494 MWh. Missing months have not been treated as zero.

Generator capacity in different operating conditions

Generator IDTechnologyNameplate MWSummer MWWinter MWMinimum load MW
GEN1Conventional Hydroelectric11.213.612.88.0
GEN2Conventional Hydroelectric11.213.612.88.0
GEN3Conventional Hydroelectric11.213.612.88.0

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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