Fossil Fuels

Exira StationMissouri River Energy Services (MRES) considers a variety of factors when determining which fuels to use for generating electricity, including price, availability, and reliability. In addition to renewable energy, MRES and our member communities rely on coal, natural gas, and diesel generation to reliably and economically serve their customers.


The Laramie River Station (LRS) near Wheatland, Wyoming, provides most of our members' power supply needs above their purchases of federal hydroelectricity. The three units of LRS began commercial operations in 1980, 1981, and 1982. LRS is fueled by coal, and the electricity produced at the power plant is sent to substations in Wyoming, Nebraska, and Colorado, where it is then delivered to Missouri Basin Power Project (MBPP) participants. These participants, a group of six electric utilities, including Western Minnesota Municpal Power Agency (WMMPA) own the Laramie River Station. WMMPA is the financing arm of Missouri River Energy Services.

Laramie River Station Fact Sheet


Natural Gas

The Exira Station, located near the community of Brayton, Iowa, is a natural gas combustion turbine that provides 140 megawatts of peaking power.

Exira Fact Sheet


Fuel Oil

The Watertown Power Plant also is a peaking facility, and can generate up to 65 MW of power.

Watertown Power Plant Fact Sheet



Additional generation is provided from smaller generating units that are located, owned, operated, and maintained by member utilities.