Regis Mason

Power plant · Storage

Key facts

Power plant · Storage Operating

Commissioned: 2024
Net generation, 2025: -231 MWh
Grid: 12 kV to Lower Colorado River Authority (ERCO)
Location: Mason County, Texas
Operated by: Regis Mason LLCSourceEIA-860M Preliminary Monthly Electric Generator Inventory

Net generation MWh by year, 2025

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All 4 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Grid	Nerc region TRE Report year 2025 Grid voltage kv 12.50 Transmission owner Lower Colorado River Authority Balancing authority code ERCO Balancing authority name Electric Reliability Council of Texas, Inc.
Fuel burned (MMBtu), 2025	0
Net generation (MWh), 2025	-231
Balancing authority code	ERCO

Data notes (1)

Capacity factor, 2025 not shown: net generation -231.0 MWh is not positive (the plant consumed at least as much as it produced over the year)

3 sources

Sources

EIA-860MOpen license · retrieved Nov 4, 2026
EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
EIA-860M Preliminary Monthly Electric Generator Inventory