Savings calculator

What could your home save?

Adjust the panels, battery and your usage to see live estimates. These figures are a guide: your exact numbers come from a free survey and a formal MCS performance estimate.

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Your home

Postcode (first part, e.g. WN2)

Monthly electricity bill£120

Roof direction

Anyone home during the day?

Number of panels (460W each)

104.6 kWp system

Battery storage (5 kWh steps)

10 kWhstackable, sized to your evening usage

I have (or plan to get) an electric car

Your estimate

£–

estimated saving in year one

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generated per year

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of your electricity covered

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typical payback

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saved over 25 years (3% energy inflation)

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CO₂ avoided over 25 years

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indicative installed cost

Not included: smart-tariff savings. With a battery, charging cheap overnight electricity typically adds £150–£400/yr on top.

Get my exact figures: free survey

Assumptions behind this estimate

460W panels · grid electricity 24p/kWh · Smart Export Guarantee 12p/kWh exported · energy price inflation 3%/yr · panel degradation 0.4%/yr · yield from regional irradiance adjusted for roof direction · battery usable capacity 85% · install costs from our real price list (systems include a 10 kWh battery unless removed). Estimates shown as a guide only: your formal quote includes an MCS performance estimate calculated for your exact roof.

Your heating today

Current heating fuel

Annual heating cost£1,200

When was your home built?

Switch to a heat pump electricity tariff (~17p)

Boiler Upgrade Scheme grant for your home: £7,500. We apply on your behalf, and it comes straight off the installation price.

Your projected saving

£–

estimated heating saving in year one

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your current heating cost

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heat pump running cost

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indicative cost after grant

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saved over 15 years (3% energy inflation)

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CO₂ avoided per year

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assumed efficiency (SCOP)

Book my free heat loss survey

Assumptions behind this estimate

Fuel prices: gas 6.3p/kWh (90% boiler efficiency) · oil 7.2p/kWh (85%) · LPG 10.5p/kWh (85%) · electricity 24p standard / 17p heat pump tariff · energy price inflation 3%/yr · SCOP from property age, confirmed by a room-by-room heat loss survey · installations start from £3,000 after the BUS grant. Gas standing charge (~£110/yr) is saved on top if you disconnect gas entirely. Estimates are a guide only: your formal quote follows an MCS heat loss survey.