Minnesota starts to think about re-using wastewater

Environment Elizabeth Dunbar · ·
Al Gerard, Lead Control Room Operator at the Calpine energy plant in Mankato, Minn., said that when the plant is in operation, it will use 700 to 1,200 gallons of reclaimed water per minute and will supply on average 3,200 Megawatts per day to the Northern States Power energy grid.