Pejepscot Hydroelectric Project
Sagadahoc County, Maine · EIA plant ID 50758 · Operator: Topsham Hydro Partners
Nameplate14MWSummer 13 MW
Generators4in service
Net generation50GWh12 mo to Dec 2025
Capacity factor44%hydro units, summer MW
Heat rate—thermal plants only
First online1987
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 | 49.8 | 43.6% | — |
| 2002 | 58 | 50.8% | — |
| 2003 | 63.5 | 55.6% | — |
| 2004 | 63.4 | 55.4% | — |
| 2005 | 75.8 | 66.4% | — |
| 2006 | 86.8 | 76.0% | — |
| 2007 | 71.6 | 62.4% | — |
| 2008 | 89.1 | 77.4% | — |
| 2009 | 82.4 | 71.8% | — |
| 2010 | 74.8 | 65.2% | — |
| 2011 | 79.5 | 69.2% | — |
| 2012 | 75 | 65.2% | — |
| 2013 | 79.9 | 69.7% | — |
| 2014 | 75.5 | 65.8% | — |
| 2015 | 65.5 | 57.0% | — |
| 2016 | 59.5 | 52.5% | — |
| 2017 | 64.9 | 57.4% | — |
| 2018 | 42.2 | 37.4% | — |
| 2019 | 42.7 | 37.8% | — |
| 2020 | 64.4 | 56.9% | — |
| 2021 | 51.5 | 45.6% | — |
| 2022 | 61.2 | 54.1% | — |
| 2023 | 70.6 | 62.4% | — |
| 2024 | 48.6 | 42.9% | — |
| 2025 | 49.7 | 44.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 12.3 | 11.7 | Nov 1987 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 0.4 | 0.4 | Nov 1987 | Operating | — | coming soon |
| GEN3 | Conventional Hydroelectric | HY | 0.3 | 0.3 | Nov 1987 | Operating | — | coming soon |
| GEN4 | Conventional Hydroelectric | HY | 0.5 | 0.5 | Nov 1987 | Operating | — | coming soon |
Owner / operator
Operator: Topsham Hydro Partners. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Topsham Hydro Partners | 100.0% | 14 MW |
Nearby plants
Within 80 km.
| Topsham Meadow Solar Station | — | 2.2 km |
| Worumbo Hydro Station | 19 MW | 5.1 km |
| Brunswick Hydro | 20 MW | 6.1 km |
| Augusta Road Bowdoin Solar, LLC | 4 MW | 8.5 km |
| SCS Harpswell 012903 Brunswick, LLC | 5 MW | 9.1 km |
| Lisbon CSG LLC | 1 MW | 9.9 km |