CASTAIC

How CASTAIC compares

With 1,682 MW of capacity, CASTAIC ranks 4th among the 874 operating power plants Bywatts maps in California and is the largest of the 195 operating Hydro plants in the state. It accounts for about 12% of California's operating Hydro capacity and 2.3% of all operating capacity in the state. Nationally it is the 9th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1972, it is older than 84% of the 859 operating California plants with a recorded commissioning year. Its operator, LOS ANGELES DEPARTMENT OF WATER & POWER, runs 25 operating plants in California totaling 5,537 MW. It shares Los Angeles County with 110 other operating plants, including AES ALAMITOS LLC and HAYNES.

EIA-860 lists 7 generators at the site with 1,682 MW of nameplate capacity, mainly hydroelectric pumped storage technology. Net generation was 93.3 GWh in 2024 (a 0.6% capacity factor). Its generators came online between 1972 and 1978.

Grid neighborhood

The nearest named substation is CASTAIC (230 kV), about 0.1 miles away; the closest transmission line found within 10 miles is a 230 kV line, about 0.1 miles away. Another 29 operating power plants totaling 1,441 MW sit within 25 miles; the largest is SOLAR STAR 1 (318 MW, Solar). Within 50 miles are 15 mapped data centers; the nearest is Fireline Data Center in Los Angeles, about 40.1 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