Diverse Energy Sources

From building a nuclear plant in the 1970s to becoming the first major Indiana utility to build, own and operate a solar generation facility, I&M has been a pioneer in generation innovation.

I&M plans to continue to Innovate Indiana in energy generation.

Two-thirds of energy I&M generated the past two years has come from emission-free sources, including four solar plants, three wind plants, six hydroelectric facilities and the Cook Nuclear Plant.

View Energy Mix

Elements of I&M’s Innovate Indiana plan include:

  • Giving all customers a new option to support both solar and wind energy by combining two existing programs.
  • Offering commercial and business customers opportunities to receive the benefits of renewable, green energy through contracts tailored to individual customer needs.
  • Supporting continued operation of Cook Nuclear Plant, which generates enough emission-free energy to power more than 1.5 million homes. I&M continues to update Cook’s two units’ as part of their extended licenses allowing them to continue generating low-cost, emission-free power 20 years beyond their original licensing periods, through the mid-2030s.
  • As I&M continues transitioning to more diverse energy sources in a smart way designed to maintain reliable generation, I&M is adding more emission-control technology to its only coal-fueled plant.

Many of our customers have expressed their desire for more of their energy to come from renewable wind and solar energy. Currently, the IM Solar program, which offers customers the opportunity to attribute part of their energy use to solar power; and the IM Green program, which allows customers the opportunity to attribute a percentage of their energy use – up to 100 percent – to renewable solar and wind power. Under Innovate Indiana, these two programs will be replaced to make it easier for residential customers to support both wind and solar energy.

Our Energy Mix

6 Hydro plants

Berrien Springs, MI

Buchanan, MI

Constantine, MI

Elkhart, IN

Mottville, MI

Twin Branch, IN

Total Capacity

22.4 MW

4 Solar plants

Deer Creek Plant (Marion)

2.5 MW

Olive Plant (New Carlisle)

5.0 MW

Twin Branch (Mishawaka)

2.6 MW

Watervliet, Mich.

4.6 MW

3 Wind plants

Fowler Ridge

150 MW


100 MW


200 MW

1 Coal plant

Rockport Plant

2620 MW

1 Nuclear plant

Cook Plant

2278 MW

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I&M uses Flurry Analytics Service (provided by Yahoo) in order to improve its mobile apps. Flurry’s privacy policy governs the use of this information.

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This policy was last revised on December 13, 2017.

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