S C MOORE

How S C MOORE compares

With 140 MW of capacity, S C MOORE ranks 7th among the 59 operating power plants Bywatts maps in New Hampshire and is the largest of the 33 operating Hydro plants in the state. It accounts for about 32% of New Hampshire's operating Hydro capacity and 3.0% of all operating capacity in the state. Nationally it is the 128th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1957, it is older than 75% of the 58 operating New Hampshire plants with a recorded commissioning year. Its operator, TRANSCANADA HYDRO NORTHEAST INC., runs 3 operating plants in New Hampshire totaling 291 MW. It shares Grafton County with 11 other operating plants, including COMERFORD and GROTON WIND LLC.

EIA-860 lists 5 generators at the site with 195 MW of nameplate capacity, all conventional hydroelectric technology (this page's HIFLD capacity figure is 140 MW). Net generation was 341 GWh in 2024 (a 20% capacity factor). Its generators came online between 1957 and 2023.

Grid neighborhood

The nearest named substation is LITTLETON (115 kV), about 0.7 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by PUBLIC SERVICE CO OF NH, under 0.1 miles away. Another 12 operating power plants totaling 235 MW sit within 25 miles; the largest is COMERFORD (140 MW, Hydro).

Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology