It's not cheaper than fossil fuel, but it's cleaner and cooler - literally and figuratively.
Sunengy's Liquid Solar Array system is designed to float on the surface of the ocean. A large lens follows the sun across the sky throughout the course of the day, focusing the sun's rays on a solar cell.
The cell itself is cooled by ocean water. In the event of storms, the entire system rotates itself under water, protecting all the vital components.
Implications - Made mostly from plastic, the Liquid Solar Array system holds a myriad of floating solar collectors. Each of these comes equipped with silicon photovoltaic cells at the water surface and is easily able to track the sun.