database of energy use in uk houses??

[Chris J Dixon]

You don't seem to have picked up on the fact that these electronic meters have the capability of recording power import and power export separately.

Have a look here:

3.5.3 Total Register

Here are some instructions that show how the supplier may set up and interrogate it..

[djc]

I used a run-back timer

on an immersion heater to do that. 20 minutes in the morning was enough to provide enough hot water for the whole day, and no risk of forgetting to switch it off.