Good for you! British innovation at it's best. I installed 2 x 410 panels and they are returning around 2 WKH per day. Payback isn't everything just nice to harness the power of the sun.
I'm an octopussy too... must admit, best deal out there in my humble opinion!! Drove past your place the other day, was very tempted to pop in for a tea!
I don't want to be a kill joy since you put a lot of well don work into this but it should be said though you are running a massively botched job here safety wise: -All grid connected solar installation need G98 form minimum signed and given to DNO by an electrician, even if you are on island mode when a grid failure happens. You can get a massive fine, be liable for any amount of damage and also a complete grid ban. If you don't want the hassle of ever getting in trouble just run off grid, camper van style. -Your solar looks to be within 1m of your house boundary making it fail permitted development laws. -Your solar has no earth and assuming the lack of mention of any grounding i will also think that you have no TT which is also a massive danger to you and any sparky working around your system. You cannot share grid only a TN-C-S system without additional grounding. -VEVOR hybrid electrical products do not have a ENA Type Test Register, meaning that all their products are NOT allowed anywhere near the national grid and would fail DNO approval. Like I said, I don't want to be a kill joy but i thought it would be a good thing to make people aware of, in case they attempt something similar. Best case for a system like this is too keep it off-grid, isolated to a shed or couple extended outlets, NOT connected to your consumer unit.
All very true! I've have the power company out twice this year to repair and finally replace our 1970s overhead uninsulated cables which they have done, they had a good look around and said nothing... I may well change this system out at some point and put a large stack of lithium batteries in there ... Totally off grid and a small diesel generator would resolve the perpetual rising costs!