Energy Risk Debates: Ercot’s RTC+B market design
Six months into this significant structural reform, the panellists talk about experiences so far
In December 2025, independent system operator (ISO) the Electric Reliability Council of Texas (Ercot), introduced a long-awaited change to Texas’s electricity market, known as Real-Time Co-Optimization + Batteries (RTC+B). Under the sweeping reforms, which reshape how energy and grid reliability services are priced and dispatched in Texas, energy and ancillary services can now be co-optimised every five minutes in the real-time market. Prior to RTC+B they could only be co-optimised in the day
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