What we did:
We installed two solar PV systems and two battery storage systems for this customer. The first PV system was 19.24kWp on a holiday cottage and, in conjunction with this, we installed two Tesla Powerwall 2 batteries with Backup Gateway. The second PV system was a ground mounted system of 18.24kWp and, again, two Tesla Powerwall 2 batteries with Backup Gateway were also installed.