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Power plant · EIA plant code 3559

Silas Ray

Operator
Brownsville Public Utilities Board
Location
Cameron, TX (county level only)
Balancing authority
Electric Reliability Council of Texas, Inc. (ERCO)
Nameplate capacity
142.5 MW
Summer capacity
112 MW

U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Generation in 2025

Net generation
51,943 MWh
Capacity factor
4.2%

Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.

U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Emissions

Carbon dioxide in 2023
83,626 metric tons
Carbon dioxide per MWh
1,474 lb/MWh

eGRID reports 92,182 short tons. One short ton is 0.90718474 metric tons.

Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.

U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0

Generators

Generators at Silas Ray
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
10Natural Gas Fired Combustion TurbineNG61 MW2004Operable · As of September 2026 (EIA-860M): (OP) Operating
6Natural Gas Fired Combined CycleNG25 MW1959Operable · As of September 2026 (EIA-860M): (OP) Operating
9Natural Gas Fired Combined CycleNG50 MW1996Operable · As of September 2026 (EIA-860M): (OP) Operating
DG-3aPetroleum LiquidsDFO1.3 MW2001Operable · As of September 2026 (EIA-860M): (SB) Standby/Backup: available for service but not normally used
DG-3bPetroleum LiquidsDFO1.3 MW2001Operable · As of September 2026 (EIA-860M): (SB) Standby/Backup: available for service but not normally used
DG-4Petroleum LiquidsDFO1.3 MW2001Operable · As of September 2026 (EIA-860M): (SB) Standby/Backup: available for service but not normally used
DG-6aPetroleum LiquidsDFO1.3 MW2001Operable · As of September 2026 (EIA-860M): (SB) Standby/Backup: available for service but not normally used
DG-6bPetroleum LiquidsDFO1.3 MW2001Operable · As of September 2026 (EIA-860M): (SB) Standby/Backup: available for service but not normally used

U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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