Mason Solar One LLC
Solar power plant · Cecil County, Maryland
Nameplate capacity
1.0 MW
Rank in Maryland
#229
of 234 plants
In service since
2020
November 2020
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Nautilus Solar Solutions
- County
- Cecil County
- Generating units
- 1
- Share of state capacity
- 0.01%
- Rank among solar plants in Maryland
- #182 of 187
- EIA plant code
- 64645
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| MAS | Solar Photovoltaic | 1.0 MW | 1.0 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
| Kent County-Kennedyville | Solar | 1.0 MW |
| MNCPPC Germantown Solar | Solar | 1.0 MW |
| Perdue Salisbury Photovoltaic | Solar | 1.0 MW |
| Pfeffers | Solar | 1.0 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 1.0 MW solar plant and a 1.0 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