Middlebury College
Addison County, Vermont · EIA plant ID 57804 · Operator: Middlebury College Biomass
Nameplate1MWSummer 1 MW
Generators2in service
Net generation2GWh12 mo to Aug 2026
Capacity factor15%other units, summer MW
Heat rate4,628Btu/kWhfossil units, electric fuel, HHV
First online1985
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), other 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) |
|---|---|---|---|
| 2011 | 3.9 | — | — |
| 2012 | 3.4 | — | — |
| 2013 | 3.5 | 34.4% | — |
| 2014 | 3.7 | 37.7% | — |
| 2015 | 3 | 32.2% | 11,726 |
| 2016 | 3.5 | 35.9% | 4,628 |
| 2017 | 3.1 | 32.2% | 4,628 |
| 2018 | 3.4 | 37.5% | 4,628 |
| 2019 | 3.4 | 37.8% | 4,627 |
| 2020 | 2.8 | 26.5% | 4,626 |
| 2021 | 3.1 | 26.8% | 4,627 |
| 2022 | 2.6 | 26.6% | 4,627 |
| 2023 | 2.4 | 21.5% | 4,629 |
| 2024 | 2.3 | 28.9% | 4,628 |
| 2025 | 1.9 | 18.1% | 4,629 |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Wood/Wood Waste Biomass | ST | 0.6 | 0.4 | Jan 1985 | Operating (Out of service) | — | coming soon |
| 3 | Wood/Wood Waste Biomass | ST | 0.8 | 0.3 | Jan 1999 | Operating | — | coming soon |
| 1 | Wood/Wood Waste Biomass | ST | 0.2 | 0.1 | Jan 1980 | Retired Oct 2011 | — | coming soon |
Owner / operator
Operator: Middlebury College Biomass. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Middlebury College Biomass | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Lower Middlebury | 2 MW | 1.9 km |
| South Street - Middlebury | 5 MW | 2.4 km |
| Beldens | 6 MW | 5 km |
| Huntington Falls | 6 MW | 7.1 km |
| Weybridge | 3 MW | 7.2 km |
| GMP Solar - Panton Hybrid | 6 MW | 8.8 km |