As the weather system which dumped the snow on Texas a few days ago has now arrived in the UK (though temperatures here are normal for the time of year) and it appears that the following weather systems are all due to arrive here as well, I thought :-
Why the power grid failed in Texas and beyond
Why the power grid failed in Texas and beyond
EXPLAINER: Why the power grid failed in Texas and beyond
The power outages tormenting Texas and other states are exposing weaknesses in an electricity system designed when the weather’s seasonal shifts were more consistent and predictable
www.independent.co.uk
WHAT HAPPENED IN TEXAS?
Plunging temperatures caused Texans to turn up their heaters, including many inefficient electric ones. Demand spiked to levels normally seen only on the hottest summer days, when millions of air conditioners run at full tilt.
The state has a generating capacity of about 67,000 megawatts in the winter compared with a peak capacity of about 86,000 megawatts in the summer. The gap between the winter and summer supply reflects power plants going offline for maintenance during months when demand typically is less intense and there's not as much energy coming from wind and solar sources.
But planning for this winter didn’t imagine temperatures cold enough to freeze natural gas supply lines and stop wind turbines from spinning. By Wednesday, 46,000 megawatts of power were offline statewide — 28,000 from natural gas, coal and nuclear plants and 18,000 from wind and solar, according to the Electric Reliability Council of Texas, which operates the state’s power grid.
“Every one of our sources of power supply underperformed," Daniel Cohan, an associate professor of civil and environmental engineering at Rice University in Houston, tweeted. “Every one of them is vulnerable to extreme weather and climate events in different ways. None of them were adequately weatherized or prepared for a full realm of weather and conditions."
The staggering imbalance between Texas' energy supply and demand also caused prices to skyrocket from roughly $20 per megawatt hour to $9,000 per megawatt hour in the state's freewheeling wholesale power market.
Deep in the heart of Texas’ collapsing power grid
Everything in Texas went wrong at once.
arstechnica.com
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