I made a bit of a mistake with the meter, it is designed for measuring the house total input power....so it can't actually isolate the energy from the panels....when they arrive.
But very interestingly, the meter gives a reading of 0.10 kw usage more or less when I am sat watching the telly...that's 100watts...that's bugger all...
it goes up to 500-600watts when the cooker and things are on of course but just idle usage is actually pretty low.
If the Panels do indeed produce 250 or so watts (50% of their capacity) that means that during the day I'm earning and in the evening while there is some sun. I'm not burning as much as I thought...of course I will use far more than I make but its very interesting..
Naturally this is all total speculation, I may have the figures totally wrong, but if I see a neg or 0 value on that power usage while I am sat watching telly, I'm gonna be a happy little bunny.
I had to register the panels with the government energy people, not sure if this gets me a tax rebate or what but it does ensure that the power company have to pay me for an excess that goes in, not much chance of that of course but more helpfully if I need to get a new meter they will supply one free. Pretty sure though that my modern meter is up to the job..
So..just waiting for the panels... The frames are bigger than I was expecting, and in fact I honestly have no idea how big the panels, are so the initial idea of mounting on the shed might not work, in which case I 'll put them straight on the roof