[monk_e_boy]

How is this different to a normal storage heater? Most homes in the UK have them. They turn on when energy is ceap, the electricity heats concrete, the heat is radiated out.

So, he invented something that uas been commercially available for decades?

[missbit]

Good to hear the UK is already doing this.

He made a controller that allows solar panels to directly heat the concrete. I'm not sure if he invented anything. He made a controller, open sourced it, and produced & sold them near cost.