Energy smart calculators

Replacing incandescent light bulbs with LEDs calculator

It's no joke - switching to LED light bulbs can save you some serious cash. Use this calculator to estimate the impact.

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Switch to natural gas calculator

Figure out how much you could save by converting your fuel oil or propane appliances to natural gas.

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Calculating water heater cost

This information from helps you determine the annual cost to run different types of water heaters.

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Customer-owned solar energy calculator (Iowa) 

See your potential savings from generating your own solar energy. Check out our tool that offers estimates based on your address and information you enter.

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