ERCOT Rule Changes Could Raise Costs for Texas Bitcoin Miners

The Electric Reliability Council of Texas (ERCOT) is revamping its rules to increase costs for large power users, including bitcoin miners and data centers.

Currently, ERCOT uses a four coincident peak (4CP) cost-allocation system to calculate transmission costs. However, critics argue that this method allows sophisticated users to avoid paying transmission charges by curtailing their load during summer peaks.

To address these concerns, ERCOT is proposing a new 'Batch Study process' for connecting large loads. This approach would group qualifying loads into a single study, allocate existing and planned transmission capacity, and provide consistency, transparency, and certainty in the connection process.

Additionally, Texas regulators are working on a rulemaking to replace the 4CP methodology with a new framework that calculates transmission costs based on 30-minute intervals across all months. This new approach is expected to make it more difficult for flexible large loads, such as crypto mines and data centers, to assign clear transmission costs.