Energy-efficient windows come with a higher upfront cost, but they can lead to significant savings over time. Calculate the potential energy savings based on your existing windows and energy costs.

Learn to find the best energy efficient window treatments — read about the pros and cons of insulated curtains, thermal panels, cellular shades, and more.

Smart window technology marks new tool to combat climate change 02:30. San Jose, California — Inside a factory near Memphis, Tennessee, workers are making an unlikely weapon in the fight against ...

So if new energy-efficient windows were not on your list of green home renovations, it is high time to consider this replacement project as soon as possible. Ecoline Windows .

Although windows amount to about 10 percent of a home’s surface area, heat transfer via windows can account for 30 percent of energy used for residential heating and cooling, according to the U ...

Energy-efficient windows, which Voltz called "an important consideration for both new and existing homes," can cost 30% more than standard windows, but can save on heating and cooling bills.