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Your free savings snapshot

Answer six quick questions to see indicative savings ranges for an electric car, solar panels, a home battery and a heat pump. Nothing you type here is sent to us or stored.

Just the first part – we use it to estimate sunshine. We don't store it.

Assumptions

  • Electricity 26.32p/kWh and 54.83p/day standing charge; gas 7.97p/kWh and 29.68p/day – Ofgem price cap averages for Direct Debit, 1 October to 31 December 2026.
  • We work out your usage from your spend after standing charges. Your actual usage on your bill is more accurate.
  • Solar yield of roughly 790–980 kWh per kWp a year depending on region (based on typical PVGIS figures). 35–50% of generation used at home; the rest exported at 4p–15p/kWh under the Smart Export Guarantee.
  • Battery: off-peak electricity at 7p–15p/kWh. Installed costs for solar (£4,500–£8,000) and batteries (£3,500–£6,000) are typical ranges, not quotes.
  • Heat pump: gas boiler 88% efficient; heat pump seasonal efficiency (SCOP) of 2.8–3.6; electricity at the cap rate or about 20p/kWh on a heat-pump tariff. The best case assumes you disconnect gas and save the standing charge. Typical installed cost £10,000–£14,000 before the £7,500 Boiler Upgrade Scheme grant (England and Wales; eligibility rules apply).
  • EV: petrol 45 mpg at £1.75/litre, diesel 52 mpg at £2.00/litre (close to RAC UK averages in October 2026); EV efficiency 3.0–3.8 miles/kWh; home charging at 7p/kWh off-peak or the standard cap rate. Fuel prices change – check today's prices.
  • Savings from different upgrades can overlap (for example, solar and a battery), so don't simply add them together.

Sources

This tool gives general information and estimates only. It is not financial, energy or professional advice. Last reviewed October 2026.

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