It’s expensive for nuclear plants and coal- and natural gas-fired units to turn on and off. So when output from wind and solar farms jumps and supply exceeds demand, prices have to fall below zero to force some generators offline.
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Is a policy analyst for TCAP, a coalition of cities and other political subdivisions that purchase electricity in the deregulated market for their own governmental use. Because high energy costs can impact municipal budgets and the ability to fund essential services, TCAP, as part of its mission, actively promotes affordable energy policies. High energy prices also place a burden on local businesses and home consumers.