TX SB6

Establishes standards for interconnecting large load customers (75+ megawatts) to the ERCOT power grid, requiring a minimum $100,000 study fee, proof of site control, and financial commitments to prevent stranded infrastructure costs

Requires large load customers with on-site backup generators (capable of serving 50%+ of demand) to disclose that information to utilities and either deploy those generators or curtail load during energy emergencies after ERCOT exhausts market services

Creates a regulatory process for "behind-the-meter" arrangements where existing generation facilities co-locate with new large load customers, requiring ERCOT study and PUC approval within 180 days to maintain grid reliability and dispatchable capacity

Directs ERCOT to develop a reliability service competitively procuring demand reductions from large load customers (75+ MW) during anticipated emergencies, with 24-hour notice requirements and restrictions on customers already participating in price-responsive curtailment

Authorizes water supply or sewer service corporations in counties under 350,000 population to generate and sell excess electricity to ERCOT, with revenue restricted to operational costs and water/sewer system purposes