In Texas, rising power demand, increasing dependence on variable-output renewables, and declining availability of dispatchable fossil-fired plants to back up wind and solar have left the Electric Reliability Council of Texas (ERCOT) power grid in a pickle. As part of its response, the Public Utility Commission of Texas (PUCT) adopted a tool called the Performance Credit Mechanism (PCM) to help ensure the grid will be able to meet a yet-to-be-defined reliability standard. But while key metrics for the PCM have been identified, the details will determine which dispatchable resources will be supported with additional revenue, how much the whole approach will cost, and how effective it might be. In today’s RBN blog, we explore the debate ahead of the PUCT’s August 29 meeting — where it is expected to finalize rules around the PCM — and explore the difficulty of compensating generators annually so that they are also there for those once-in-10-year events.
Posts from Lynne Fowler
In the three years since the deadly electrical outages caused by Winter Storm Uri, the Texas Legislature, the Public Utility Commission of Texas (PUCT), and the Electric Reliability Council of Texas (ERCOT) have been working overtime to design and implement changes to ensure a more reliable Texas power grid. But it hasn’t been easy. The state’s energy-only electricity market and its outsized reliance on intermittently available wind and solar power have forced policymakers, regulators and the electric-grid operator to develop a wide range of fixes aimed at maintaining a competitive atmosphere while at the same time incentivizing market players to have power available when it’s needed most. In today’s RBN blog, we look at what they’ve been up to.
