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Electricity Readings for the yearWe have a 3.28kwp Solar Photovoltaic System.
I have just come to the end of my second year of generating electricity.
Last April I had an import/ export meter installed and as I am sending my yearly electricity meter readings to my electricity supplier, I thought that you guys might be interested.
Export DAY for year 2421 kwh @ 15p per kwh £363.15
Import DAY for year 949 kwh @ 15p per kwh £142.15
Import NIGHT for year 433 kwh @ 4p per kwh £ 17.32
Net return £203.48
ROCs ( renewable Obligation Certs)
received £150.00
Total received from Electricity company £353.48
My Gas Bill for the year is £322.
So the Solar PV has resulted in us being financially self sufficient in term of domestic energy.
FYI
CO2 saved to date is 3541 kg.
The system cost £8600 when installed. Maintenance £ 0 ( though I doubt the inverter will last forever)
The payback time at current rates is 13 years.
However as energy prices increases due to Peak Oil and associated issues, I expect that the payback will decrease.
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