HSL technology uses rooftop, 4-ft-wide mirrored dishes that track the sun with the help of a GPS receiver. The collector focuses the sunlight onto 127 optical fibers. The fibers, which can be thought of as flexible light pipes, are connected to hybrid light fixtures that have special diffusion rods that spread out the light in all directions. One collector powers about eight hybrid light fixtures--which can illuminate about 1,000 square feet. /www.ornl.gov
Energy from the sun is piped directly from the sun to where it's needed. Think of combining traditional electrically powered high efficiency lighting with a solar source. In full sun, the electrical l lighting could be scaled back while in darkness used 100% or dimmed back as required.
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