In order to bring you the best possible user experience, this site uses Javascript. If you are seeing this message, it is likely that the Javascript option in your browser is disabled. For optimal viewing of this site, please ensure that Javascript is enabled for your browser.
Choose your state

Our products and services differ based on state. Please select your state (or the state you're interested in) from the list to the left.

Why do our products and services differ based on state? Because our business is regulated by state. We have regulated operations in eight Western and Midwestern states. The different regulatory body for each state we serve determines what products and services we deliver in that state.

  • Text Size
  • Email
  • Print

Power Generation Main

Power Generation

We make electricity

Overview

We operate major generating facilities that use a variety of fuel sources including coal, natural gas, nuclear fuel, water (hydro), oil, and refuse; we also have facilities that generate electricity from the wind and sun. In total, our plants are capable of producing more than 17,000 megawatts (MW) of electricity. One megawatt of power generated by fossil fuels or nuclear fuel provides enough electricity to serve 750 typical homes. 

We generate approximately two-thirds of our power and buy the remainder from other electricity suppliers to meet our customers’ energy needs. We have a diverse fuel mix.

Generating Facilities

2011 Generating Plants

  Plants Net Dependable Capacity in Megawatts (MW)*
Coal 13 7,697
Natural gas 27 7,096
Nuclear 2 1,594
Hydro 26 378
Oil 5 10
Refuse-derived fuel 3 53
Wind 3 326 **
Solar 4 0.08
Total 81 owned generating plants 17,154

*Based on Net Dependable Capacity (NDC) and Summer NDC when applicable.

**Wind generation is based on Net Maximum Capacity. It is an intermittent resource and is only available when ambient wind conditions exist to support this level of generation

Power Supply

1 This category includes wind energy de-bundled from renewable energy credits (RECs).
2 This category also includes Windsource RECs. See more information about RECs and Windsource.
3 “Other” includes small amounts of power purchased from a number of sources.
4 Includes distributed generation through the Solar*Rewards program.

Plant List for NSP - Minnesota (includes North and South Dakota)

Plant List for NSP - Wisconsin

Plant List for Public Service Company of Colorado

Plant List for Southwestern Public Service Company (Texas and New Mexico)