Thanks GG84, hopefully they are!

Yeah were straight wind power, The batteries are those connected to the turbine/gen. They are supposed to hold like 3 days worth of electricity but as they are now "getting on a bit" they only hold a day/day and a half worth. They still have some charge in from yesterday (when gen was working) Its been as calm as anything here for last 4 days. There is a bit of wind now but I don't think turby is charging the batteries, Its not quite strong enough.