If your going to get panels, fill every inch of your roof with them and get as much battery storage as possibleI did mine in stages as I could afford it, 16kw panels first, then another 10kw of panels then 13kw of batteries, then another 13kw of bateriesHavent had a bill since 2020, through summer I export over 100kw per day back to the grid, you could charge a few cordless cars with that if your into that sort of thing