- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Deweys Mill: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Deweys Mill
Power plant · Hydro
Key facts
Power plant · Hydroran 7% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1989
- Net generation, 2025
- 1,733 MWh
- Grid
- 12 kV to Green Mountain Power Corp (ISNE)
- Location
- Windsor County, Vermont
- Operated by
- Green Mountain Power CorpSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 1,733
MWh - Fuel burned, 2025
- 5,975
MMBtu - Capacity factor, 2025
- 6.6
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 1,733 | 5,975 | 6.6% | — |
| 2024 | -30 | 0 | — | — |
| 2023 | 1,985 | 6,842 | 7.5% | — |
| 2022 | 163 | 555 | 0.6% | — |
| 2021 | 533 | 4,715 | 2.0% | — |
| 2020 | 1,669 | 14,633 | 6.3% | — |
| 2019 | 2,156 | 19,199 | 8.2% | — |
| 2018 | 2,226 | 20,266 | 8.5% | — |
| 2017 | 361 | 3,326 | 1.4% | — |
| 2016 | 3,888 | 35,893 | 14.8% | — |
| 2015 | 4,521 | 42,133 | 17.2% | — |
| 2014 | 4,890 | 46,502 | 18.6% | — |
| 2013 | 6,911 | 65,937 | 26.3% | — |
| 2012 | 6,147 | 58,497 | 23.3% | — |
| 2011 | 8,791 | 85,411 | 33.5% | — |
| 2010 | 7,746 | 75,571 | 29.5% | — |
| 2009 | 9,227 | 90,056 | 35.1% | — |
| 2008 | 5,573 | 54,917 | 21.1% | — |
| 2007 | 5,200 | 51,396 | 19.8% | — |
| 2006 | 9,950 | 98,692 | 37.9% | — |
| 2005 | 7,713 | 77,122 | 29.3% | — |
| 2004 | 5,710 | 57,229 | 21.7% | — |
| 2003 | 5,595 | 57,303 | 21.3% | — |
| 2002 | 5,707 | 58,057 | 21.7% | — |
| 2001 | 3,500 | 36,165 | 13.3% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.