Wanting to Pick the brains of you Octopus Guru's

[Kot]

You need to find the sweet spot between investment and useage. Due to our latitude, we only get good irradiance levels for about 3/4 of the year, and then energy use is far less in summer, so you don't need a massive array to meet self use. Don't get me wrong, if your roof has space for say 20 panels rather than 14 as a single array, then the cost is worth it by the time you've paid for the scaffolding etc, the extra panels are not that significant a cost. If you start putting panels on extra roof orientations, a couple here, a pair there, then it's very debatable if it's worth the extra cost.

Just for interest, just came across this youtube video, the author discusses octopus x v octopus y etc and has made a spreadsheet which among other things calculates payback etc.

Also there is a recent Flux video with Garys Duck curve

 

[binky]

Just for interest, just came across this youtube video, the author discusses octopus x v octopus y etc and has made a spreadsheet which among other things calculates payback etc.

Also there is a recent Flux video with Garys Duck curve

There's lots of calculators knocking around, which gives a generic overview of the benefits of solar and batteries, but you need to sit down and work out numbers for yourself as everyone uses energy differently. More importantly you need to change your habits to maximise self energy use