COSUMNES

How COSUMNES compares

With 530 MW of capacity, COSUMNES ranks 33rd among the 874 operating power plants Bywatts maps in California and 25th of the 190 operating Natural Gas plants in the state. It accounts for about 1.4% of California's operating Natural Gas capacity and 0.7% of all operating capacity in the state. Nationally it is the 314th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 2006, it is newer than 50% of the 859 operating California plants with a recorded commissioning year. Its operator, SACRAMENTO MUNICIPAL UTIL DIST, runs 14 operating plants in California totaling 2,070 MW. It shares Sacramento County with 38 other operating plants, including FOLSOM and SCA COGEN 2.

EIA-860 lists 3 generators at the site with 557 MW of nameplate capacity, all natural gas fired combined cycle technology. Net generation was 3,842 GWh in 2024 (a 79% capacity factor), about 4 times its 2022 output.

Grid neighborhood

The nearest named substation is COSUMNES (230 kV), about 0.1 miles away; the closest transmission line found within 10 miles is a 230 kV line owned by SACRAMENTO MUNICIPAL UTILITY DISTRICT, about 0.1 miles away. Another 43 operating power plants totaling 851 MW sit within 25 miles; the largest is SCA COGEN 2 (193 MW, Natural Gas). Within 50 miles are 3 mapped data centers; the nearest is RagingWire CA1 - NTT in Sacramento, about 29.2 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