I had the house survey done by the solar lads. They reckon the amount of panels I could manage would generate ~1700kw/h per annum. My annual usage is ~3200kw/h, so thats a reasonable return.
However, having the panels generating that much and actually using that much are 2 different things. So I'm gonna consider the battery option. That way I have a better chance of using every drop of power the panels generate. The return on investment will be slow, but theres more than just the financials for me. The principal of having over half of your power using coming from solar is pretty compelling imo.
Do you know how many metres squared thats based on?