THE HEAT VAULT
We've lived on the edge for some time. Now we must switch from depleting resources for our energy needs to sources which are renewable.
Producing energy is one thing, having it there when most needed is another. To secure this we need storage. Lots of it. For long periods. Including whole seasons.
So far, storage is for electricity. And it's in man-made devices that work for minutes to days at most. There is an alternative. A big alternative.
Rocks are exceptionally good at storing heat. They have done for 4.5 billion years.
Rather than extracting fossil energy in small quantities in isolated locations, we can store vast quantities of heat energy underground, in natural rocks, everywhere.
Then we can use the energy in whatever form we choose.
Immediately or decades later.