What does Texas SB75 do?
SB75 imposes immediate operational mandates on all Electric Generation and Transmission/Distribution Service Providers (TDSPs) to conduct biennial "physical attack" simulations coordinated with law enforcement. While the newly formed Texas Grid Security Commission (TGSC) has until late 2026 to develop long-term infrastructure hardening standards, market participants must immediately update Emergency Action Plans and prepare for mandatory reporting to ERCOT to avoid PUC enforcement actions. Implementation Timeline Effective Date: September 1, 2025 Compliance Deadline: December 31, 2026 (Deadline for completing the first mandatory physical attack tabletop exercise and submitting the required attestation to ERCOT).