It’s looking like at least £350 per panel in parts, plus several hundred for labour depending on installation. So maybe 3 panels on micro inverters for a little over £1K, but 8 panels on a string inverter (future battery) would be around £4K. 😳

This is on a flat roof with no scaffolding required. Still considering 3-4 panels, but no chance on more than that.

I’ve found a cheap option! Designed for balcony solar, but as that is illegal in the UK they are going cheap. Micro inverters for 4 panels and a 2kWh AC battery for £700 in total! 🤯

https://uk.ecoflow.com/products/stream-microinverter