Power plant · Massachusetts, United States
Stony Brook
Stony Brook is a power plant in Massachusetts, United States, with 542 MW of capacity, owned by Massachusetts Mun Wholes Electric Co (90.9%), Green Mountain Power Corp (8.7%) and The Town of Lyndon Elec Dept - (VT) (0.4%).
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Massachusetts | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Operating | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1981 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Massachusetts Mun Wholes Electric Co (90.9%) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | Green Mountain Power Corp (8.7%) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Owner | The Town of Lyndon Elec Dept - (VT) (0.4%) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Massachusetts Mun Wholes Electric Co | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 542 MW | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Petroleum Liquids | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 42.1978, -72.5106 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
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How it compares
Stony Brook is the 8th-largest of 8 power plants in Massachusetts and the 680th-largest of 800 in the United States by capacity; its 542 MW is <0.1% of the 839,036 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Massachusetts | 8th of 8 | 6,697 MW | 8.1% |
| United States | 680th of 800 | 839,036 MW | <0.1% |
| All power plants in our data | 737th of 4,829 | 1,037,268 MW | <0.1% |
Owners, operator and place
- Massachusetts Mun Wholes Electric CoOwner · 90.9%
- Green Mountain Power CorpOwner · 8.7%
- The Town of Lyndon Elec Dept - (VT)Owner · 0.4%
- Massachusetts Mun Wholes Electric CoOperator
- Power plants in Massachusetts, United States13
- Power plants in the United States1,635
- The United States: country profile
- Largest power plants
More from Massachusetts Mun Wholes Electric Co
- Millstone2,260 MW
- Seabrook1,242 MW
- William F Wyman Hybrid863 MW
Other power plants in Massachusetts
- Canal1,495 MW
- Northfield Mountain1,168 MW
- Fore River Generating Station872 MW
- Salem Harbor Power Development LP798 MW
- Bear Swamp666 MW
- ANP Bellingham Energy Project578 MW
- ANP Blackstone Energy Project578 MW
- Vineyard Wind 1800 MW · under construction
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.