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We designed a cylindrical solar panel that could capture sunlight from all angles without tracking the sun. The physics were beautiful. The economics were a disaster.
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A microinverter is the size of a paperback book and it does more for your solar system than the giant box that used to sit on your garage wall.
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Every home with solar panels should also have a battery. The sun does not shine at night, but your appliances still need power.
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The central inverter was a single point of failure for the entire solar array. We eliminated it by making every panel independent. That was the whole insight.