This online lighting retrofit calculator gives users an estimate of the energy savings, cost savings, and environmental benefits they can expect from performing an energy-efficient lighting retrofit ...

As the holidays approach, Duke Energy wants Hoosiers to know how Christmas lights will change their energy bills. The utility now offers a holiday lighting calculator that estimates energy costs as ...

A gloomy, cloudy day makes you suddenly realize your home may be lacking in lighting. Whether your home is 100 years old or a brand-new build, we often aren’t using enough lighting. According to ...