23-04-2018, 08:13 AM
My total leccy usage is about 2000kWh/year plus whatever my PV generates and I actually use, say another 800kWh. More PV, a little wind energy and a suitably sized battery would get to self sufficiency. Except that it would be a big battery to allow for the sun not shining much in winter. Not viable yet for me when there's a grid conenction and power that's not too expensive.
Solar DHW is entirely practical but really needs a south facing roof which I don't have. My PV faces just south of west which isn't ideal but good enough. In sunny countries solar water heating is cheap and simple. With an immersion heater backup for those occasional days when there's not enough sun.
Solar DHW is entirely practical but really needs a south facing roof which I don't have. My PV faces just south of west which isn't ideal but good enough. In sunny countries solar water heating is cheap and simple. With an immersion heater backup for those occasional days when there's not enough sun.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
