We sometimes take for granted the marvel of a power plant we have in our backyard here in Becker. The power plant in Becker, known as Sherco, was named after Sherburne County. It is the largest power plant in the state of Minnesota. This plant is the 15thth largest power plant in the entire county! With the plant sitting on 4500 acres of property it is difficult to get the proper perspective to see how large it really is.
Sherco contains three generation units. Units 1 and 2 generate each 750 megawatts. These were built in the 1970's. These units cost at the time of construction $370 million. Unit 3 was built in 1983 to 1987. Sherco 3 cost approximately $1 billion to construct. This unit generates 900 megawatts of power. The combined total of electricity generated at Sherco is 2,400 megawatts.
The plant burns coal at a rate of 30,000 tons everyday. That can be up to 3 train loads of coal. This works out to about 9 million tons of coal a year. The coal used is a low sulfur bituminous western coal to keep pollution levels down. The coal comes to Becker by train from Montana and Wyoming in 105 to 117 car train loads. A train car of coal holds up to 120 tons. There is a 88 acre coal storage pile at Sherco usually having a 40 to 55 day supply on hand for the plant.
The boilers that produce the steam are more than 200 feet tall. The boilers in units 1 and 2 weigh about 8 million pounds each. Unit 3's boiler weighs about 9.8 million pounds. All three boilers combined burn more than 1,300 tons of coal per hour. They also use about 3,335,000 gallons of water an hour to produce steam. The steam produced in units 1 and 2 is about 5 million pounds per hour at 1000 degrees of temp. Unit 3 produces 6.125 million pounds of steam per hour.
So when your driving down Highway 10 and you see the plant off to the south of the highway consider what an engineering marvel it actually is. An besides providing tax base to Becker it benefits us all with electricity to serve our daily needs.