We just finished up the hottest July on record. Very high temperatures cause air conditioning demand to go ballistic. System operators struggle to generate enough power to satisfy peak load and call on expensive “peaker” generation units that set a high market price for power. With gas prices trading lower these days, the spread between high power prices and the cost of the gas fuel to generate that electricity (the spark spread) widens considerably during a heat wave. Today we look at spark spreads during July in New York City.
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