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Shade trees positioned near houses in Sacramento, Calif., such as those in this photo, can significantly affect electricity use. Tree cover on the west and south sides of Sacramento homes reduced average summertime electricity demand by more than 5 percent, according to a study by NIST and the USDA.

tree trees shade electricity saving greenmonktv

A clear glass toaster; a plane of glass that can heat a living room; a device that helps relieve arthritis and carpal tunnel syndrome pain; a less-damaging, more energy-efficient hairdryer — these have all been created by Impression Technology, a nanotechnology start-up headquartered in Frederick and run in large part by three city residents.

The young company has perfected a new, "green" technology it calls Pure Heat, which offers, among other benefits, a way to generate evenly distributed heat at a 70 percent electricity savings over conventional heating methods. The kicker is the technology can be applied to essentially any non-flexible surface, and it is entirely transparent.

nanotechnology electricity saving pure heat