Watch why more than three quarters of our photovoltaic products are sold as a system, comprising high-quality glass-glass modules, battery storage and energy managers. Generating clean, green solar energy by day for use at night means you can power not only your home or business but also your EV. | SOLARWATT

For years, solar power at home was mostly limited to people who own their rooftops and could afford the steep upfront costs. But a new generation of small, affordable systems are making clean energy more accessible. The technology, often called "plug-in" solar, is already widespread in Germany and gaining momentum in the United States. KQED's Laura Klivans reports. | PBS NewsHour