@Edent very similar story here. 5.6kwp, 5KW inverter, 9.6kwh of batteries. And we drive a Nissan leaf. I’ve given up trying to calculate the savings / payback as it’s so complicated, but it performs very well and we rarely touch peak electricity. I’m on octopus intelligent go and last month our gas, car charging and electric “cost” was £86 profit. On a fully sunny day we’ll generate 33kwh off the panels.