Great Bay Solar 1
Solar power plant · Somerset County, Maryland
Nameplate capacity
118 MW
Rank in Maryland
#16
of 234 plants
In service since
2018
March 2018
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Great Bay Solar I LLC
- County
- Somerset County
- Generating units
- 2
- Share of state capacity
- 0.89%
- Rank among solar plants in Maryland
- #2 of 187
- EIA plant code
- 59851
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GBS01 | Solar Photovoltaic | 75 MW | 75 MW | 2018 | Operating |
| GBS02 | Solar Photovoltaic | 43 MW | 43 MW | 2020 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Maryland
| Vienna Operations | Other | 181 MW |
| CPV Backbone Solar | Solar | 175 MW |
| NRG Chalk Point CT | Other | 94 MW |
| Philadelphia | Other | 83 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 118 MW solar plant and a 118 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Maryland power plants · What Maryland actually generates