Treasure Lane Solar 1
Solar power plant · Kennebec County, Maine
Nameplate capacity
4.5 MW
Rank in Maine
#163
of 274 plants
In service since
2023
May 2023
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- AES Clean Energy
- County
- Kennebec County
- Generating units
- 1
- Share of state capacity
- 0.07%
- Rank among solar plants in Maine
- #89 of 175
- EIA plant code
- 66174
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| TREAS | Solar Photovoltaic | 4.5 MW | 4.5 MW | 2023 | 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 Maine
| Milo CSG | Solar | 4.5 MW |
| Route 3 China Solar, LLC | Solar | 4.5 MW |
| Barefoot Solar | Solar | 4.3 MW |
| Benton Falls Associates | Hydro | 4.2 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 4.5 MW solar plant and a 4.5 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 Maine power plants · What Maine actually generates