Middlesex 2
Washington County, Vermont · EIA plant ID 3740 · Operator: Green Mountain Power Corp
Nameplate3MWSummer 3 MW
Generators2in service
Net generation6GWh12 mo to Dec 2025
Capacity factor21%hydro units, summer MW
Heat rate—thermal plants only
First online1928
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 6.2 | 32.0% | — |
| 2002 | 12 | 57.0% | — |
| 2003 | 12.5 | 43.4% | — |
| 2004 | 11.7 | 40.4% | — |
| 2005 | 13.9 | 48.0% | — |
| 2006 | 16.3 | 56.4% | — |
| 2007 | 13.7 | 48.8% | — |
| 2008 | 17 | 60.5% | — |
| 2009 | 17.3 | 61.8% | — |
| 2010 | 12.1 | 43.1% | — |
| 2011 | 15.5 | 55.4% | — |
| 2012 | 11 | 39.1% | — |
| 2013 | 11.9 | 42.3% | — |
| 2014 | 9.4 | 33.7% | — |
| 2015 | 10.3 | 36.8% | — |
| 2016 | 6.9 | 24.7% | — |
| 2017 | 14.2 | 50.5% | — |
| 2018 | 9.6 | 34.1% | — |
| 2019 | 12 | 43.0% | — |
| 2020 | 8.6 | 30.4% | — |
| 2021 | 8.6 | 30.6% | — |
| 2022 | 4 | 14.3% | — |
| 2023 | 14.1 | 50.4% | — |
| 2024 | 9.8 | 35.0% | — |
| 2025 | 5.9 | 20.9% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 1.6 | 1.6 | Jan 1928 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 1.6 | 1.6 | Jan 1928 | Operating | — | coming soon |
Owner / operator
Operator: Green Mountain Power Corp. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Green Mountain Power Corp | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Moretown | retired | 3.2 km |
| Berlin 5 | 42 MW | 7.8 km |
| Wrightsville Hydro Plant | 1 MW | 8.7 km |
| Waterbury 22 | 6 MW | 12 km |
| Bolton Falls | 9 MW | 13 km |
| ER Bone Hill Solar, LLC | 1 MW | 18.6 km |