Block Island
Washington County, Rhode Island · EIA plant ID 6567 · Operator: Block Island Power Co
Nameplate7MWSummer 7 MW
Generators4in service
Net generation0GWh12 mo to Aug 2026
Capacity factor0%gas/coal/oil units, summer MW
Heat rate11,932Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as rarely runs
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), gas/coal/oil 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) |
|---|---|---|---|
| 2002 | 11.8 | 19.7% | 9,750 |
| 2003 | 11.8 | 18.5% | 10,027 |
| 2004 | 12.4 | 19.4% | 9,864 |
| 2005 | 10.8 | 24.9% | 11,692 |
| 2006 | 11 | 19.6% | 11,692 |
| 2007 | 11.1 | 18.6% | 11,584 |
| 2008 | 10.6 | 17.8% | 11,356 |
| 2009 | 10.6 | 17.8% | 11,356 |
| 2010 | 10.8 | 18.2% | 11,613 |
| 2011 | 10.5 | 17.6% | 11,644 |
| 2012 | 10.6 | 16.5% | 15,927 |
| 2013 | 10.7 | 16.0% | 12,214 |
| 2014 | 10.7 | 16.0% | 11,138 |
| 2015 | 11.5 | 17.3% | 11,049 |
| 2016 | 12.6 | 20.4% | 10,881 |
| 2017 | 3 | 7.4% | 10,370 |
| 2018 | 0 | 0.1% | 15,591 |
| 2019 | 0.1 | 0.1% | 13,639 |
| 2020 | 0 | 0.0% | 12,000 |
| 2021 | 0 | 0.0% | 15,000 |
| 2022 | 0.3 | 0.6% | 10,454 |
| 2023 | 0.1 | 0.1% | 11,273 |
| 2024 | 0.1 | 0.2% | 10,017 |
| 2025 | 0 | 0.1% | 10,536 |
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 |
|---|---|---|---|---|---|---|---|---|
| 23 | Petroleum Liquids | IC | 1.2 | 1.2 | Jul 2001 | Operating (Standby / backup) | — | coming soon |
| 24 | Petroleum Liquids | IC | 1.6 | 1.6 | Apr 2002 | Operating (Standby / backup) | — | coming soon |
| 25 | Petroleum Liquids | IC | 1.8 | 1.8 | Mar 2006 | Operating (Standby / backup) | — | coming soon |
| 27 | Petroleum Liquids | IC | 2.5 | 2.5 | Jun 2018 | Operating (Standby / backup) | — | coming soon |
| 11 | Petroleum Liquids | IC | 1 | 0.8 | — | Retired Jan 2005 | — | coming soon |
| 19 | Petroleum Liquids | IC | 1.1 | 1 | Aug 1993 | Retired Jun 2012 | — | coming soon |
| 21 | Petroleum Liquids | IC | 1.6 | 1.5 | May 1997 | Retired Jan 2002 | — | coming soon |
| 22 | Petroleum Liquids | IC | 1.3 | 1.2 | Jun 1999 | Retired Jul 2016 | — | coming soon |
| 26 | Petroleum Liquids | IC | 1.8 | 1.8 | Jun 2012 | Retired Jan 2017 | — | coming soon |
Owner / operator
Operator: Block Island Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Block Island Power Co | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Block Island Wind Farm | 30 MW | 8 km |
| Kearsarge KWW LLC | 3 MW | 26.4 km |
| Kearsarge Westerly | 4 MW | 27 km |
| Alton Road Solar | 14 MW | 29.7 km |
| Richmond NMCA | 4 MW | 31.8 km |
| GD Richmond Beaver River I LLC | 5 MW | 33.2 km |