Oakdale Power Station
Worcester County, Massachusetts · EIA plant ID 10824 · Operator: Massachusetts Water Res Auth
Nameplate4MWSummer 3 MW
Generators1in service
Net generation1GWh12 mo to Dec 2025
Capacity factor5%hydro units, summer MW
Heat rate—thermal plants only
First online1951
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 | 16 | 60.8% | — |
| 2002 | 0 | 0.1% | — |
| 2003 | 10.1 | 38.4% | — |
| 2004 | 14.5 | 54.9% | — |
| 2005 | 9.2 | 34.8% | — |
| 2006 | 7.9 | 30.1% | — |
| 2007 | 12.8 | 48.6% | — |
| 2008 | 9.8 | 37.1% | — |
| 2009 | 11.2 | 42.5% | — |
| 2010 | 12.6 | 47.8% | — |
| 2011 | 7.8 | 29.7% | — |
| 2012 | 13.9 | 52.6% | — |
| 2013 | 11.4 | 43.3% | — |
| 2014 | 11.8 | 45.0% | — |
| 2015 | 14.8 | 56.5% | — |
| 2016 | 11.9 | 45.0% | — |
| 2017 | 7.8 | 29.8% | — |
| 2018 | 8.7 | 33.0% | — |
| 2019 | 11 | 41.7% | — |
| 2020 | 10 | 38.0% | — |
| 2021 | 11.7 | 44.6% | — |
| 2022 | 13.7 | 52.3% | — |
| 2023 | 12 | 45.8% | — |
| 2024 | 13.9 | 52.9% | — |
| 2025 | 1.4 | 5.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| OAKD | Conventional Hydroelectric | HY | 3.5 | 3 | May 1951 | Operating | — | coming soon |
Owner / operator
Operator: Massachusetts Water Res Auth. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Massachusetts Water Res Auth | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Holden BESS 1 | 5 MW | 6.1 km |
| West Boylston Community Shared Solar | 2 MW | 6.7 km |
| Norton Powerhouse | retired | 8.6 km |
| MA Solar Storage 1 Hybrid | 2 MW | 8.6 km |
| Chocksett Rd Energy Storage Project | 2 MW | 9 km |
| CES Sterling LLC | 2 MW | 9 km |