Solar Tubes
Solar tubes are tubes that run from the ceiling of a room to the roof, where they collect light that is reflected down the tube and then diffused into the attached room. Solar tubes work like skylights but are less expensive, require less roof/ceiling space, and can be easily installed in almost all buildings. They can even work in the basement or the first floor of a two-story house if there is a closet, a chase, or any place to feed through the solar tube up to the roof.
Solar Energy Technologies Program
The Solar Energy Technologies Program focuses on developing cost-effective solar energy technologies that have the greatest potential to benefit the nation and the world. Solar technologies diversify the energy supply, reduce the country's dependence on imported fuels, improve air quality, and offset greenhouse gas emissions. A growing solar industry also stimulates our economy by creating jobs in solar manufacturing and installation.
Solar Water Heating Pays For Itself Five Times Over
An analysis of the engineering and economics for a solar water-heating system shows it to have a payback period of just two years, according to researchers in India. They report, in the International Journal of Global Energy Issues, on the success of the 1000-liter system operating at a university hostel.
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Solar tubes are amazing! My office has these unique daylighting devices called Solatube Daylighting Systems made by Solatube International, Inc.
ReplyDeleteNo matter what time of day it is, we always have plenty of natural light and rarely have to turn out electric lights on.