
Rural England
Four technologies, one control strategy, and no supply upgrade.
PV, storage, heat pump and EV charging commissioned as one system with a single control strategy.
- 20
- Solar panels
- 8.8kWp
- Generation capacity
- 15kWh
- Battery storage
- 4
- Elements designed together
%
Estimated share of electricity supplied on site
71 per cent. Estimated share of electricity supplied on site.Illustrative example. Not a completed Tilos installation. This page shows the structure a real case study will follow.
The constraint
Four technologies specified by three different trades, each sized in isolation, with a supply that could not carry all of them at once.
Why we designed it this way
Sized individually, the heat pump and the charge point would have needed a supply upgrade. Designed together with load curtailment, they did not — the car simply stops charging while the heat pump runs hard, which the household never notices.
One control strategy rather than four apps. Surplus solar goes to hot water, then the battery, then the car, in that order, because that is the order of value for this household's actual usage pattern.
Outcome
Four technologies behaving as one system, and a supply upgrade avoided entirely.
The system
- Scope
- Solar PV, battery, heat pump, EV charge point
- Heating
- Low-temperature, weather compensated
- Controls
- One tariff-aware strategy across all four
- Supply
- Load curtailment to avoid a supply upgrade
Technologies
- Whole-home
- Solar PV
- Battery storage
- Heat pumps
Performance figures are modelled estimates specific to this property. Every proposal states its own assumptions.
Ready to design your energy system?
Speak directly with Sebastian or one of our energy consultants about your home, your energy use and what you want to achieve.

