Solar Lighting for An Affordable, Sustainable Future

via macondo / Shutterstock

While first developed as a practical power source during the 1950s, solar systems were too expensive for mainstream use until the 1970s. Starting from their early use to power Cold War era military satellites, silicon photovoltaic solar cells achieved their first commercial success in places where electricity was not available, such as lighthouses and off-shore oil rigs. 

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