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Wholesale power prices were generally higher in 2018, with both winter and summer spikes

Wholesale electricity prices during 2018 at major trading hubs in the United States were generally higher than in 2017. Wholesale prices in 2018 ranged from 14% higher than in 2017 in the area served by the Midwest Independent System Operator (MISO) to 60% higher in the ERCOT electricity market serving most of Texas. Monthly wholesale electricity prices were also more volatile in 2018 than in 2017, seeing spikes during the winter and summer months.