Want to let the light in but keep the heat out? A low-E window can do just that. It has been coated with a glaze to increase its R-value, or heat-flow resistance. A low-e window allows light to pass through, but reflects back radiant heat-keeping the window surface and the building a more comfortable temperature in both hot and cold weather.
A clean, powerful energy source, right above our heads. It's power that is harnessed from sunlight in the form of radiant energy and converted into electricity. Solar electricity is a renewable energy source-it won't run out for at least a few million years-and it can power everything and anything electric. The more electricity we get from the sun, the less that must be generated by burning fossil fuels.