Far below the waves, engineers are quietly testing a vision that treats the seabed as a vast energy vault rather than an empty expanse. The idea is to sink giant hollow concrete spheres to the ocean ...
About 2,000 feet beneath the ocean’s surface, in the dark stillness off the coast of California, a concrete sphere the size of a small house will soon have its moment. Its walls must resist pressures ...
Add Yahoo as a preferred source to see more of our stories on Google. What if the key to storing solar power isn’t on rooftops or in batteries—but hidden deep beneath the waves? That’s exactly what ...