We modelled your house against a full year of your own meter readings. The tariff comes first, this week and for nothing. Solar and a battery come next, when you are ready. A heat pump would work here, and its moment is when the boiler goes.
Drawn from the outline you marked on the satellite image. The roof pitch of about 33 degrees is measured, not assumed: Environment Agency 1 m first return surface model, 184 roof pixels inside the outline you drew.
Worth £124 a year on your consumption, before you spend anything on equipment. You are inside your exit window, so it costs nothing to leave, and the switch itself takes about five minutes on the supplier’s own site.
We are not paid by any supplier. This is a recommendation and nothing else.
Twelve panels on the south roof. The clearest yes in this report.
Nine kilowatt-hours on the courtyard wall of the south wing. Pays for itself faster than the panels do.
It would work here. On today’s prices it does not pay for itself yet.
A 7.4 kW charger fits on the courtyard wall, with two conditions your installer has to handle.
Nothing here has to happen at once. Each step stands on its own.
Five minutes on the supplier’s site. Nothing to buy and nothing to install.
Twelve panels on the south roof and nine kilowatt-hours on the courtyard wall below them. One install, one scaffold.
It would work here today. Its moment is when the boiler needs replacing anyway.
Fits your supply with two conditions. Not priced until we know your mileage.
| Solar panels | Home battery | Heat pump | EV charger |
|---|---|---|---|
| Worth doing | Worth doing | Not yet | Feasible |
| £9,913to install, VAT free until March 2027 | £6,245added to the solar install | £5,900after the £7,500 government grant | 7.4 kWthe size that suits this supply |
| £690saved a year on its own, 10% off what you pay now | £745saved a year, 11% off what you pay now | £426saved a year, on a heat pump tariff, 6% off what you pay now | £600 to £1,200typical installed cost |
| 14 yearsto pay back alone, 11 with the battery | 8 yearsto pay back | 14 yearsto pay back, at best | Not pricedwe do not have your mileage, so we have not invented a saving |
| 30 yearspanel life, inverter replaced at 12 | 17 hoursof essential load in a power cut | 2.2 tonnesless carbon a year, down 73% | No grantthe chargepoint grant is for flats and rented homes |
Every number on this page with its working, its sources and the assumptions behind it.