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Article : Solar on the Cheap

Solar on the Cheap




Liter of Light http://isanglitrongliwanag.org/ has installed some 10,000 solar “bottle bulbs” in Manila and Laguna in the Philippines.

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From Haiti to the Philippines, many poor people live in windowless corrugated-iron-roofed shacks. Even with an opening cut out of the corrugate iron for a door, these dwellings are dark in the day. Electricity, if available, is an expense sometimes bettered saved for food.

Liter of Light has come up with a simple, nearly free solution: Fill plastic soda bottles with water (add some bleach to keep algae from growing) and insert them into custom-cut holes in the roof. The water in the clear plastic bottles refracts the sun's rays, creating the equivalent of about 55 watts of light in a dark room.


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October 25, 2014, 5:11 pm EST

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