82nd largest plant in Massachusetts · 6199th nationally
Umass Boston is a solar power plant in Massachusetts with a nameplate capacity of 8.1 MW. It generates roughly 659 MWh per year — enough to power about 62 average U.S. homes.
Its capacity factor of 1% reflects intermittent or peaking operation. At 170 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.
| Plant Name | Umass Boston |
|---|---|
| Operator | Mss Energy Holdings, Llc (D.b.a. Calibrant Energy) |
| City | Dorchester |
| County | Suffolk County |
| State | Massachusetts |
| ZIP | 02125 |
| Coordinates | 42.31298, -71.03637 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 060G | Petroleum Liquids | Distillate Oil | 1.6 MW | Operating | 2012 |
| 050G | Petroleum Liquids | Distillate Oil | 0.8 MW | Operating | 2001 |
| 090G | Petroleum Liquids | Distillate Oil | 0.6 MW | Operating | 1972 |
| 030G | Petroleum Liquids | Distillate Oil | 0.5 MW | Operating | 2014 |
| 080D2 | Petroleum Liquids | Distillate Oil | 0.5 MW | Operating | 1972 |
| BATT1 | Batteries | Battery | 0.5 MW | Operating | 2021 |
| RHG | Petroleum Liquids | Distillate Oil | 0.5 MW | Operating | 2017 |
| SOL2 | Solar Photovoltaic | Solar | 0.5 MW | Operating | 2021 |
| 020G | Petroleum Liquids | Distillate Oil | 0.4 MW | Operating | 1972 |
| 080G | Petroleum Liquids | Distillate Oil | 0.4 MW | Operating | 1972 |
| WG | Petroleum Liquids | Distillate Oil | 0.4 MW | Operating | 2018 |
| 010G | Petroleum Liquids | Distillate Oil | 0.3 MW | Standby | 2006 |
| 080D1 | Petroleum Liquids | Distillate Oil | 0.3 MW | Operating | 1972 |
| 110G | Petroleum Liquids | Distillate Oil | 0.2 MW | Operating | 1972 |
| 120G | Petroleum Liquids | Distillate Oil | 0.2 MW | Operating | 1972 |
| SOL1 | Solar Photovoltaic | Solar | 0.2 MW | Operating | 2021 |
| 160G | Petroleum Liquids | Distillate Oil | 0.1 MW | Operating | 2001 |
| 200G | Petroleum Liquids | Distillate Oil | 0.1 MW | Operating | 1999 |
| CO₂ | 56 metric tons |
|---|---|
| NOₓ | 1 metric tons |
| CO₂ Rate | 170 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | NPCC |
|---|---|
| Balancing Authority | Iso New England Inc. |
Utility-scale solar farms convert sunlight directly into electricity using photovoltaic panels. They produce zero direct emissions and have no fuel cost, but generation is variable — peaking at midday and falling to zero at night. Capacity factors typically run 18–28% in good locations.