Texas power demand to break June and July records in heat wave: grid operator

Texas Power Grid Under Pressure Amid Forecasted Heat Wave

The Electric Reliability Council of Texas (ERCOT) anticipates electricity consumption will surpass June's peak demand record on Thursday. With expectations of even higher peaks next week, this comes as residents and businesses ramp up air conditioning to counteract a severe heat wave. The prediction underscores concerns about extreme weather, drawing parallels to the February 2021 freeze that left millions of Texans without utilities and the August 2020 heat wave that led to rolling blackouts in California, impacting about 800,000 customers.

ERCOT assured that the grid remains stable, with sufficient supply to meet the projected demands over the coming week. In Houston, temperatures are expected to rise from 95 degrees Fahrenheit (35 Celsius) on Thursday to 99 degrees Fahrenheit by Monday, July 1. Although these temperatures slightly exceed the city's average highs for this period, they are expected to feel much hotter due to humidity and other factors, reaching perceived temperatures of 108 degrees Fahrenheit on Thursday and 110 degrees Fahrenheit on July 1.

After setting peak-demand records multiple times in April and May, ERCOT projects an increase in power demand from 78,947 megawatts (MW) on Wednesday to 81,027 MW on Thursday. This will exceed the previous June record of 80,787 MW set in 2023. Further, ERCOT forecasts demand will hit 83,111 MW by July 1, surpassing the July record of 83,047 MW set in 2023. The grid's historical peak demand was 85,508 MW on August 10, 2023, and some analysts predict that this summer could see a new all-time high. These projections are fueled by Texas's economic and population growth and the increasing power needs of data centers used for artificial intelligence and cryptocurrency mining.

On typical days, one megawatt can supply power to 800 homes, but this number drops to just 250 homes during Texas's scorching summer days. Notwithstanding the spike in demand, next-day power prices at ERCOT North Hub, which services Dallas, decreased by about 32% to $37 per megawatt hour for Thursday, down from $55 on Wednesday. This remains consistent with an average of $35 per MWh for June, contrasting with averages of $59 in May, $31 for the year so far, $80 in 2022, and $66 over the previous five years (2018-2022).