FourFold Module

The FourFold™ module

The Focused Sun’s FourFold™ hybrid solar module captures four times more of the sun’s energy as a same-sized conventional panel. It has mirrors that reflect sunlight onto the absorber’s narrow strip of photovoltaic cells, converting about 18% of the energy to electricity. Coolant pumped through the absorber cools the cells and heats the coolant, converting an additional 55% of the sunlight to heat. The FourFold™ squeezes costs out of the modules by using sandwich fabrication for its mirrors.

Speaking of cost, let's analyze the economics of solar power.