Originally Posted by codprawn
Did he say how much it cost?
Remember 2kw is about 20p an hour.
Typically a 2kw installation will cost about £10,000. Even assuming you get 2kw for 8hrs a day and 200 days a year(no chance in UK) that only equals £320 a year - that means it will take 31 years just to break even. that is not counting the fact that £10,000 stuck in a high interest bank account will be worth quite a lot in 30 yrs time!!!
Our local Tesco has a 40kw array that cost £2 million. On a typical overcast day it can read as low as 120W..........
They are actually photovoltaics
He just said it cost a lot , i could ask him . He is aware that it will take years to break even but the "green issues" are his pet subject.
They were drilling deep bore holes the last time I was there for use with a heat pump to run underfloor heating . the solar cells are going to produce the power for the heat pump and when its not in use he sells the elcrtric back to the grid .
i just wish they would get it sorted and the floor layed so that i can finish the kitchen i have made for him , but no one can work out the pipe diameters and pump size required .It seems the teknology is too new for anyone to really commit to proper specifications .
Another customer has a place by the river with ponds etc and that has a water wheel producing over 6kw and a heat pump running from copper coils in the river that runs 21 huge old iron radiators, its a really huge old place and warm as toast