Colchester 16
Chittenden County, Vermont · EIA plant ID 3735 · Operator: Green Mountain Power Corp
Nameplate18MWSummer 9 MW
Generators1in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1965Runs as rarely runs
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), gas/coal/oil 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.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 3.3 | 5.6% | 21,743 |
| 2002 | 0.3 | 0.4% | 27,996 |
| 2003 | 0.4 | 0.6% | 22,064 |
| 2004 | 0.7 | 1.0% | 20,212 |
| 2005 | 0.6 | 0.8% | 24,825 |
| 2006 | 0.7 | 1.0% | 24,520 |
| 2007 | 0.7 | 0.9% | 22,381 |
| 2008 | 0.3 | 0.4% | 19,965 |
| 2009 | 0.1 | 0.2% | — |
| 2010 | 0.1 | 0.1% | 22,136 |
| 2011 | 0 | 0.0% | — |
| 2012 | 0.1 | 0.1% | 22,959 |
| 2013 | 0.2 | 0.2% | — |
| 2014 | 0.1 | 0.1% | — |
| 2015 | 0.3 | 0.4% | 23,690 |
| 2016 | 0.4 | 0.5% | 20,366 |
| 2017 | 1 | 1.3% | 29,460 |
| 2018 | 0.2 | 0.2% | — |
| 2019 | 0.1 | 0.1% | — |
| 2020 | 0.1 | 0.1% | 15,400 |
| 2021 | 0.1 | 0.2% | — |
| 2022 | 0.4 | 0.5% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0.3 | 0.4% | — |
| 2025 | 0.3 | 0.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GT1 | Petroleum Liquids | GT | 18 | 8.7 | Oct 1965 | 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% | 18 MW |
Nearby plants
Within 80 km.
| Gorge 18 | 3 MW | 0.1 km |
| Chace Mill Winooski One | 8 MW | 1.4 km |
| 158th Fighter Wing Solar Farm | 1 MW | 2 km |
| Whitcomb Solar Farm | 2 MW | 2.7 km |
| J C McNeil | 60 MW | 3 km |
| Burlington GT | 26 MW | 4.4 km |