How Giant Concrete Spheres on the Seafloor Could Store Renewable Energy
A 10-ft test sphere being dropped down to the bottom of Lake Constance in EuropeFraunhofer IEETo avoid using large areas of land for building renewable energy storage facilities, the Fraunhofer Institute has been developing a bold yet feasible idea: using hollow concrete spheres submerged in the deep ocean to store energy.The StEnSea Project: Storing...