Electrical Distribution System

The electrical distribution system serves in excess of 5,800 residential and commercial accounts and consists of a combination of 2400 Volt and 13.8 KV distribution systems.  The Department operates a 30-Megawatt Co-generation power plant and also has a 20-Megawatt interconnect with Minnesota Power.

Statistical Data

Primary Voltage: 2.4KV and 13.8KV
Generation Capacity:  30 Megawatts
Minnesota Power Interconnect:  20 Megawatts
Peak Demand: 22 Megawatts
Average Demand: 19 Megawatts
 

Co-generation Power Plant

The Power Plant has four operating boilers, including a new natural gas boiler, which was commissioned in 1993.  Three steam turbines generate power and provide exhaust and extraction steam to the distribution system.  Electricity is generated as required to match the steam heating load.

Statistical Data

Boiler Production Capacity Fuel
#7 90,000 lbs./hr Gas
#8 125,000 lbs./hr. Coal/Gas
#9 176,000 lbs./hr. Coal
#10 200,000 lbs./hr. Gas
Electric Generator Capacity Steam Output
#1 4 Megawatts  10 PSI Exhaust
#5 7.5 Megawatts 50 PSI Extrac.
#6 18 Megawatts 50 PSI Extrac.

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