Relating to the regulation of emissions by the Texas Commission on Environmental Quality during an event affecting electric demand or grid reliability.

SB 2321 allows the Texas Commission on Environmental Quality (TCEQ) to temporarily waive enforcement of emissions limits for power plants and backup generators in the ERCOT grid region during declared grid reliability emergencies. When the ERCOT grid operator notifies TCEQ of a reliability issue, TCEQ must exempt these facilities from emissions rules for the duration of the event. Power plant operators must still document emissions exceedances, take reasonable steps to minimize pollution, and submit records to TCEQ. This bill directly affects power plant operators in Texas during grid stress events, providing a temporary exemption from emissions enforcement while requiring transparency and recordkeeping. The bill takes effect September 1, 2025.