One of the biggest reasons to buy a new refrigerator is better energy efficiency compared with an older model. But how much of a difference does energy efficiency make in the long-term costs of a ...

Energy efficiency in physics is not measured the way most people think about it. Instead of asking how much heat a process ...

We did the math: Here's how much a new fridge model can save you over one that's a decade old. John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major ...

Energy efficiency is a transformative, low-cost solution that can fast-track access to affordable and secure energy and boost economic growth. Amid soaring power demand, driven in part by air ...

The Trump administration tried to end or privatize the government Energy Star efficiency program. But now Trump has signed a budget bill that fully funds the program and leaves it even stronger.

Whether you’re looking to lower your utility bills or concerned about the environmental impact of your housing choices, improving the energy efficiency of your home can make sense. After all, boosting ...

The government is considering changes to fuel efficiency norms that could remove the “zero-emission” status currently granted ...

Energy-efficient windows often feature multiple glass panes, gas fills, low-e coatings, and well-insulated frames. Proper installation is crucial to ensure a window's energy efficiency benefits are ...