MOCCASIN

How MOCCASIN compares

With 100 MW of capacity, MOCCASIN ranks 168th among the 874 operating power plants Bywatts maps in California and 40th of the 195 operating Hydro plants in the state. It accounts for about 0.7% of California's operating Hydro capacity and 0.1% of all operating capacity in the state. Nationally it is the 179th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1969, it is older than 85% of the 859 operating California plants with a recorded commissioning year. Its operator, CITY & COUNTY OF SAN FRANCISCO, runs 5 operating plants in California totaling 378 MW. It shares Tuolumne County with 16 other operating plants, including NEW MELONES and DON PEDRO.

EIA-860 lists 2 generators at the site with 97 MW of nameplate capacity, all conventional hydroelectric technology. Net generation was 275 GWh in 2024 (a 32% capacity factor), down 8% from 2022.

Grid neighborhood

The nearest named substation is NEW MOCCASIN CR (115 kV), under 0.1 miles away; the closest transmission line found within 10 miles is a 230 kV line, under 0.1 miles away. Another 19 operating power plants totaling 1,390 MW sit within 25 miles; the largest is NEW MELONES (382 MW, Hydro). Within 50 miles is one mapped data center, 801 Tenth Street Modesto (Ayera) in Modesto, about 40.0 miles away.

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