Several Michigan electric utilities are offering free, online home energy audits.
The online tool allows users to map their home's energy use. It uses a series of questions, ranging from the home's square footage to typical thermostat settings, to create a picture of how energy is being used.
Steve Lightbourn is with the Michigan Energy Optimization Program.
"It automatically estimates a home's energy use, and then it projects heating and cooling and hot water and lighting costs. It also will calculate the home's energy savings potential, so you know what things you can do to get the greatest payback," Lightbourn said.
Customers who complete the home energy audit receive an energy-saving kit that includes compact fluorescent lightbulbs, faucet water savers and a new shower head.