Skylights are evolving, in ways intended to bring heat and light from the sun as far indoors as possible. One of the newest methods uses highly reflective mirrors that never stop moving in pursuit of the sun. This solar tracking skylight requires no external power. The mirrors hang from a shielded control box powered by a photocell. They are able to generate 4 times the indoor light levels and in the summer, reduce heat gain by 20 percent.
Solar tubular skylights function the same way, without using any movable parts. They do this using a reflective metal tube that spreads sunlight throughout the interior of a room. Another similar product is the Solar Tracker, a moveable solar panel that rotates.
While most solar products currently on the market are static, the potential for movement seems to have its virtues, especially since the sun and earth never stay still.
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