On Apr 22, 9:26*am, Andy Dingley wrote:
On Apr 22, 3:50*am, Bob Minchin

wrote:
However, in practice it is quite difficult to manage domestic
consumption to follow the time profile of the sun's availability so
treat the "quid a day" as a bonus and just use the 4 quid a day

It did strike me that a better situation would be a house with two
separate supplies, and fitting the PV to one of these, that you don't
use any supply for yourself. Given the subsidies, this "magic solar
electricity" is far too valuable to use yourself.

By strange circumstance, I happen to have two electricity supplies to
this place...

Not neccesary. I am retired now. We are modifying our lifestyle to
fit in with availabilty of free electricity.
All you have to do is look at the inverter. If there's sufficient KW
being generated to run whatever, we carry on.