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DP&L gets the bulk of its electricity from the coal-fired W.H. Zimmerman power plant (Clermont County,...

DP&L gets the bulk of its electricity from the coal-fired W.H. Zimmerman power plant (Clermont County, Ohio)—the largest single unit power plant in the United States. It services 500,000 customers at a capacity of 1,300 Megawatts/day. If all 500,000 customers in the DP&L region switch from using a refrigerator rated at 653kW-hr/yr to a new refrigerator rated at 500kW-hr/yr, what will be the total energy reduction each year? What percent of Zimmerman Power Station’s yearly maximum capacity output does this energy reduction represent?

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