Indian Orchard
Hampden County, Massachusetts · EIA plant ID 6379 · Operator: nautilus hydro, llc
Nameplate4MWSummer 4 MW
Generators2in service
Net generation3GWh12 mo to Dec 2025
Capacity factor11%hydro units, summer MW
Heat rate—thermal plants only
First online1928
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 | 5.2 | 16.8% | — |
| 2002 | 3 | 9.2% | — |
| 2003 | 7.9 | 24.4% | — |
| 2004 | 6.6 | 20.2% | — |
| 2005 | 8.3 | 25.6% | — |
| 2006 | 7.4 | 22.9% | — |
| 2007 | 8.7 | 27.0% | — |
| 2008 | 0 | 0.0% | — |
| 2009 | 11 | 33.8% | — |
| 2010 | 5.8 | 17.9% | — |
| 2011 | 13.2 | 40.6% | — |
| 2012 | 6.6 | 20.3% | — |
| 2013 | 7.3 | 22.4% | — |
| 2014 | 4.6 | 14.1% | — |
| 2015 | 3.8 | 11.7% | — |
| 2016 | 3.6 | 11.1% | — |
| 2017 | 6.5 | 19.9% | — |
| 2018 | 6.7 | 20.6% | — |
| 2019 | 9.9 | 30.7% | — |
| 2020 | 6.9 | 21.3% | — |
| 2021 | 8.2 | 25.2% | — |
| 2022 | 7.2 | 22.1% | — |
| 2023 | 10.6 | 32.8% | — |
| 2024 | 6.3 | 19.4% | — |
| 2025 | 3.5 | 10.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| IO3 | Conventional Hydroelectric | HY | 1.5 | 1.5 | Jan 1928 | Operating | — | coming soon |
| IO4 | Conventional Hydroelectric | HY | 2.2 | 2.2 | Jan 1928 | Operating | — | coming soon |
Owner / operator
Operator: nautilus hydro, llc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| nautilus hydro, llc | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Masspower | 261 MW | 1.3 km |
| Indian Orchard PV Facility | 2 MW | 1.3 km |
| Indian Orchard Plant 1 | 6 MW | 1.4 km |
| Oak Street Solar | 4 MW | 1.6 km |
| Putts Bridge | 3 MW | 1.8 km |
| Chicopee | 2 MW | 2.2 km |