Off the coast of California, engineers are preparing to sink a hollow concrete sphere that works like an underwater battery. They’re calling it StEnSea style storage.
The prototype will rest on the seabed near Long Beach and store electricity by…

Off the coast of California, engineers are preparing to sink a hollow concrete sphere that works like an underwater battery. They’re calling it StEnSea style storage.
The prototype will rest on the seabed near Long Beach and store electricity by…