three months later

Late March, we decided to experiment with a new solar PV usage strategy due to the relative rates of chear rate grid power overnight (costing us 6.4p/kWh) and the amount we are paid for exporting during the day (15p/kWh). Rather than use the battery to power the house during the cheap rate, we would used grid power and charge the battery overnight, then export more during the day. We assumed, from…