Electricity Readings for the year

admin · Site Admin Joined: 08 Dec 2005 Posts: 33 Location: Kent

We 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.

greentech · Joined: 24 May 2008 Posts: 3 Location: California

Thanks for posting this details info and making the case that solar can be cost effective in the long run.
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Hydrogen Gas Saver

catchercradle · Joined: 11 Aug 2008 Posts: 2 Location: Cambridge

We have a windsave turbine and it has produced 100KWH in just under a year.
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You can see me doing the circus stuff at http://www.youtube.com/watch?v=cHtNMd-2e9s