Projected annual saving · 52% of current bill
Case study, Surrey
The fix was not more solar. It was when they bought electricity.
- New-build home, 2024
- One EV, one PHEV
- All-electric (3× ASHPs, 2× e-boilers)
All-electric, no gas, three heat pumps, an EV and a PHEV. Costing more than £6,000 a year. The modelled answer was a battery sized to the load, charged overnight on a smart tariff.



