HydroOperatingISO-NE

Gorge 18

Hydro power plant in Chittenden County, Vermont. 3 MW of nameplate capacity across 1 generator, operated by Green Mountain Power Corp.

Also known as EIA plant 6475

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158th Fighter Wing Solar FarmWhitcomb Solar FarmJ C McNeilGorge 182 km
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5 plants within 3.1 km, from EIA coordinates.

Key facts

Capacity
3 MWNameplate
Generators
1 operatingEIA-860M, August 2026
Operating since
January 1928First generator online
Operator
Green Mountain Power CorpEIA operator ID 7601
Grid
ISO-NEBalancing authority ISNE
Price nodes
None linkedNo verified ISO node
Location
Chittenden County, VT44.4900, −73.1693
EIA plant ID
6475EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Gorge 18 produces

Free · EIA-923

Net generation, 2025

15.4 GWh

15,407 MWh, final

Capacity factor, 2025

58.6%

2024: 63.6%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

5.1–20.5

GWh a year. Low 2020, high 2023

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
20006,037Not reported12 of 12
20013,354Not reported12 of 12
200210,534Not reported12 of 12
20038,756Not reported12 of 12
200410,434Not reported12 of 12
200510,053Not reported12 of 12
200614,016Not reported12 of 12
20079,989Not reported12 of 12
200813,830Not reported12 of 12
200913,316Not reported12 of 12
201012,29846.8%12 of 12
20119,65236.7%12 of 12
201200.0%12 of 12
20139,37435.7%12 of 12
201411,18942.6%12 of 12
201515,07357.4%12 of 12
201614,32154.3%12 of 12
201712,63348.1%12 of 12
20189,79137.3%12 of 12
201912,70148.3%12 of 12
20205,05419.2%12 of 12
202110,66540.6%12 of 12
202211,15542.4%12 of 12
202320,49778.0%12 of 12
202416,74863.6%12 of 12
202515,40758.6%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

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No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Hydroelectric3.0January 1928

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Green Mountain Power Corp as the operator, which is not always the owner.

Modeled data

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Power plants near Gorge 18

More plants operated by Green Mountain Power Corp

Questions about Gorge 18

How much power does Gorge 18 produce?

Gorge 18 reported 15,407 MWh (15.4 GWh) of net generation in 2025, a 58.6% capacity factor on 3 MW of nameplate capacity.

Where is Gorge 18?

Gorge 18 is in Chittenden County, Vermont, at 44.4900, −73.1693. It is in the ISO New England Inc. balancing area (ISNE).

Who operates Gorge 18?

EIA-860M for August 2026 lists Green Mountain Power Corp as the operator (EIA operator ID 7601). The operator is not always the owner.

When did Gorge 18 start operating?

Its first generator began operating in January 1928, according to EIA-860M.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page