General   (General discussion, talk about anything.)

Just been reading about the renewed Reichstag building in Berlin. (Architect: Norman Foster)

It incorporates 'inter-seasonal thermal energy storage' meaning that in periods of excess heat, it is cooled by heat pumping energy from the building, and sinking it into underground bodies of water. In the colder season, the heat pumps recover this heat and provide space heating to the building.

I knew that we should have kept our mine shafts. I bet you could store a lot of energy in the more than 50 miles of subterranean canal that lie between 'Bent and Worsley.