Window replacement companies love to throw around big numbers - "save up to 40% on heating costs!" or "cut your energy bills ...

Amid rising gas and electricity costs, many people are looking for creative ways to stay warm without hefty bills or ...

With the addition of some cheap nanoantennas, your average window can now be turned into an efficient solar heater. Just as Elon Musk’s Tesla wants to turn our otherwise dormant roofs into powerful ...

What Actually Makes a Difference Most advice about making your home more energy-efficient focuses on small changes—switching ...

Windows are great for letting in light, but in summer months that comes with an unwanted side order of heat, causing many people to run the air conditioning non-stop. Now, researchers have developed ...

Here's the best home energy technology we saw this year, from giant batteries to stained glass solar panels to machines that harvest water from thin air. While electricity keeps all your tech running, ...

Find the best solar options for your home and budget. Find the best solar options for your home and budget. Solar windows, also known as photovoltaic windows or solar glass, are a type of ...

Q: I need help deciding whether to put solar film on my west-facing windows in the Seattle area, and, if so, whether the film should go on the inside or the outside. We have no air conditioning and ...

These windows—dubbed "thermochromic" for their ability to change colors in response to heat—can convert sunlight into electricity using minerals called perovskites and single-walled carbon nanotubes.

Q: I bought a house with bedrooms that face the south side of the house. During the summer, the heat in those rooms is brutal. They already have ceiling fans, but I am wondering if putting up some ...

Generating energy from sunlight is essential for reducing CO2 emissions. However, it takes a lot of space to install all the solar panels needed for our energy supply on land. What if you could use ...

A California energy startup has designed windows with built-in solar panels, which they hope will hasten the widespread transition to carbon-free electricity sources the state is encouraging with new ...