Facebook recently announced its plans to install a solar array on its 10,000 square foot fitness center. The system will be designed and implemented by Cogenra Solar and will use the sun’s energy to produce electricity and hot water at the same time. The cogeneration technology uses mirrors to focus the sun’s energy on solar PV panels situated on rods in which fluid runs to capture the heat PV panels waste after generating energy. The fluid heats up and creates thermal heat, which allows the array to create both electricity and hot water. The Facebook array will generate 60kW of combined electric and thermal output.