Kat Burnham

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With Fossil Fuel Plants Overvalued, It’s Time to Get Capacity Right

Posted by Kat Burnham on Apr 14, 2022 10:30:00 AM

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Grid operators today are managing a changing portfolio mix while facing new system reliability challenges, such as extreme weather events occurring with greater frequency. As the clean energy transition accelerates, it’s vital that grid operators accurately understand how much they can count on different generating resources. They do so by evaluating the resource adequacy, or capacity value, of the resources available to determine how to meet total demand. But what happens when those methods of valuing capacity overlook certain outage risks? Some generating resources gain more reliability credit than they deserve. That is indeed happening with conventional power plants (coal, oil, and natural gas), which may be overvalued by as much as 20% under traditional methods. As new analysis commissioned by AEE shows, it’s time to get capacity right.

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Topics: Regulatory, Wholesale Markets