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ERCOT explains annual "batch" study to handle unprecedented data‑center queue
Summary
ERCOT testified that the growth of data‑center interconnection requests forced a change from serial studies to an annual batch study that will assess many projects together, allocate transmission capacity by year, and require higher upfront criteria and financial security.
ERCOT President and CEO Pablo Vegas told the Committee on State Affairs that the speed and concentration of new large‑load requests required a structural change to the interconnection process.
Vegas said the current interconnection practice—where projects are studied one by one—creates uncertainty and repeated restudies when neighboring projects change the transmission topology. He proposed a recurring "batch" study that would study a cohort of projects together, allocate available transmission capacity by year (for example 2027, 2028, 2029, 2030), and reserve that capacity for qualifying projects. "This is across all of ERCOT ... and what that will do is it will allow us to look at the system at the same time," he said.
Under ERCOT's concept, projects would meet gating criteria (site control, equipment orders, financial security) to be included in a batch; some financial commitments would be required and a tiered approach to refundable vs nonrefundable deposits was discussed in testimony. Vegas and PUC Chairman Thomas Gleason both emphasized the goal of balancing certainty for developers against the risk of speculative requests clogging the queue.
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