I found this old post. My system was generating around 900kWh/month over the summer and exporting about 600kWh. I get a better rate for that now, so the system will pay for itself quicker. This is from 8kW of panels, so a different scale to you.
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Thanks for finding it too @steevc there’s still value to be found in what people have written in the past, beyond the 7 day voting window
Is amazing what you can get out of a smaller system. I reckon we should use solar more often on smaller objects too, thus saving money on batteries, less waste etc etc.
The panels have got pretty cheap, but you tend to need other parks such as a battery and inverter. If you are going to be off grid then it can keep you going and could replace small generators that are very polluting. For running a house you need to get the professionals in to make it all safe and legal.
We’ve considered it because our property comprises of two buildings, the house and the garage with rooftops of different orientations and as such we’ve often considered putting panels on two of the rooftop surfaces to benefit from the daylight as much as possible. I reckon the inverter and battery could go in the garage. I quite like the whole engineering aspects of it too.
Build it!
Someone at work has a similar layout, but he is not convinced by the economics. A more complicated install will cost more, but I don't think people do it just for the money. That said, if we keep living here then it will save me money when I'm retired.
That’s the thing if we can save tomorrow then we can enjoy more of the money we’ve saved when younger; mind you it’s a balance really as round got to enjoy now too!
Uh, yea it's another scale :D i'm only on a rent flat so, makes no sense to invest high amount of panels - there are already panels on top of the roof for the people living under me
It has to be worth it to you. I think Germany has always been ahead on this stuff as I saw lots of talk of green issues when I lived there 30+ years ago. If nothing else it makes economic sense.