Connecticut
power plants.
Connecticut has 126 power plants in our public-data catalog, totalling 11.3 GW of tracked capacity. Its generating fleet leans on natural gas — 53.6% of tracked capacity, with oil second at 22.2%. The largest plant we track is Millstone (2,163 MW, online since 1981).
Connecticut electricity mix
Tracked installed capacity by fuel. Each links to its global page.
Largest plants in Connecticut
Frequently asked questions
Where does Connecticut get its electricity?
Across the 126 plants we track in Connecticut, capacity is led by natural gas at 53.6%, then oil at 22.2%. These are tracked installed-capacity shares from public data, not live generation.
What is the largest power plant in Connecticut?
The largest plant in our Connecticut catalog is Millstone, a nuclear facility with 2,163 MW (commissioned 1981).
How many power plants are in Connecticut?
Our catalog tracks 126 power plants in Connecticut totalling 11.3 GW, built from EIA, WRI and OpenStreetMap. The true total including the smallest installations is higher.