The Texas power grid comfortably met record demand during this week's heat wave with abundant power supply from wind and solar plants, data from the grid operator showed.
The Texas grid is a focus in the United States whenever it is tested by extreme weather after a catastrophic failure in February 2021 during freezing temperatures left millions of Texans without power, water and heat for days during a deadly storm.
This week, grid operator the Electric Reliability Council of Texas had little trouble meeting demand even as consumption for air conditioning rose temperatures rose as high as in the Fort Worth/Dallas area, according to the U.S. National Weather Service. The grid had a margin of about 13,900 MW at the peak hour, enough to keep prices below $100 per megawatt hour all day. During the 2021 crisis, prices rose to around $9,000 per MWh, which was the grid's price cap at that time.
At the peak hour on Tuesday, wind and solar provided about 35% of the power in ERCOT versus 44% from gas, 14% from coal and 6% from nuclear.
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