Today’s Solutions: December 19, 2025

UK charity SolarAid and solar panel manufacturer Yingli Solar just launched “the world’s most affordable solar light.” Sold by SolarAid’s social enterprise SunnyMoney in Africa, the SM100 solar light costs only $5. People in the UK can buy one of the lights for 10 pounds, and the money will help distribute two more solar lights in African countries. The SM100 is designed for off-grid use by African families and children working on homework at night.…

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