A major factor in comparing potential new car options today is assessing overall efficiency, known as a vehicle's average miles per gallon, or MPG rating. For vehicles that utilize a plug-in hybrid ...

Here's an overview of what a furnace efficiency rating is, why it matters, and how you can check yours.

You can update your existing windows to make them more energy efficient or replace them with Energy Star certified options. Some or all of the mortgage lenders featured on our site are advertising ...

How can energy-efficient light bulbs, bricks, and buildings cut costs and improve energy security? In this episode of The Development Podcast, we discover that energy efficiency doesn’t just save ...