Reduce the home’s dependence on expensive grid energy.
Our whole-home approach coordinates heat loss, low-carbon heating, solar generation, storage and controls. The aim is the lowest practical purchased-energy cost, not an unsupported promise of permanent zero bills.
Four systems must work together.
A home with solar, a battery and a heat pump can still import significant winter energy. A useful design models seasonal demand, not just a bright summer day, and states how tariffs, occupancy and behaviour affect the result.
Fabric and ventilation
Reduce avoidable heat loss while protecting indoor air quality and moisture performance.
Fabric-first planningHeating and hot water
Size the heat pump, emitters and cylinder from room-by-room demand.
Heat-pump designBattery and controls
Set storage capacity and operating strategy around tariffs and major loads.
Battery storage guide
A direction of travel, measured honestly.
Fixed charges, winter demand, equipment limits and household behaviour mean a permanent zero energy bill cannot be guaranteed. Some well-suited homes may achieve very low net electricity costs over a period, especially where export income is included, but the model must show its assumptions.
We use the phrase to describe a whole-home strategy that systematically reduces purchased energy and exposure to future price changes.
- BaselineUse actual consumption and current system performance.
- ScenarioCompare fabric, heating, solar and storage combinations.
- ReviewMeasure results after commissioning and adjust controls.
Energy efficient home improvements should work as one system.
A whole-home energy system coordinates heat loss, heating demand, solar generation, storage, controls and tariffs. Each part changes the value and sizing of the others, so disconnected quotations can produce unnecessary cost or conflicting assumptions.
The aim is to reduce energy bills while keeping the plan realistic about winter demand, fixed charges, occupancy and tariff conditions. Permanent zero bills are not promised unless a named provider confirms that the property meets its specific scheme rules.
Evidence first, then a defined next step.
Each stage should reduce uncertainty about the property, the technical scope, the funding or payment route and the party responsible for delivery.
Measure
EPC, bills, interval data, fabric and heating demand.
Model
Seasonal generation, import, export and major loads.
Sequence
Fabric, electrical work, heating and renewables in the right order.
Optimise
Commission controls and review real performance.
Answers before you commit.
Direct information on suitability, cost, evidence and responsibility.
No. Fixed charges, weather, occupancy, tariffs and system performance prevent a responsible universal guarantee.
Not always. A staged plan can protect cash flow and use measured results to refine later work.
No. Landlords can use whole-home planning where ownership, tenant benefit, metering and maintenance responsibilities are clear.
BUS may support eligible heat pumps and targeted household schemes may support other measures. Each route is checked separately.
Build one energy plan for the whole property.
Bring the EPC and recent bills. We will map the useful sequence rather than sell disconnected products.