Is that the whole array in the photograph? It looks quite small to be 5kWp. Could you share any information about the number of panels, make/model, spec. Info about the battery and invertors? Was the 2kwh battery included in the £6k or did you get that afterwards? How long have you had the system?
Sorry for the barrage of questions. I've become quite obsessed with these kinds of details before taking the leap. I only purchased our first home in the summer of 2020 (a 1930s semi-detached house) and have a SW facing garden with a hipped roof which can probably fit 4-5 panels on each part, along with a single story extension that could also probably fit maybe 4 more panels.
I've focused so far on insulation. I currently use about 3000kWh per year electricity and 10000kWh gas, but I am hoping to get this down as much as possible. I'm expecting gas to reduce this winter due to insulation I've done this year. The main thing I'm trying to do is have a holistic approach to reducing my carbon emissions and reliance on the grid (and therefore reduce cost) whilst also fixing a house that hasn't been modified in 30 years in a piecemeal way because I can't afford to do it all in one go.
Again, sorry for the barrage of questions. Posts like this with actual details are fantastic, thanks for posting it. A really interesting YouTube video I watched recently (with like only 200 views) has a lot of detail about the modifications made in both CO2 and cost. https://www.youtube.com/watch?v=3Pr7wL63FjQ