1 Geographical and eligibility restrictions apply. A 2023 study indicates that air heat pumps are up to four times more efficient than average gas boilers over a full year, as measured by the Seasonal Coefficient of Performance (SCOP). This metric includes all heating and hot water, providing a realistic comparison to combi boilers.

2 Figures are based on standard MCS calculations for a south-facing 12-panel solar array in central England, on a 35-degree tilt roof, with no shading, and annual electricity usage of 4,800 kWh. The tariff rate is 24.5p/kWh (Ofgem Energy Price Cap from 1 October 2024). Savings assume a 5.1 kWh battery and Smart Export Guarantee (SEG) payments of 21p/kWh under the E.ON Next Premium v2 Export tariff. Actual savings may vary. Our experts may suggest additional or alternative products, updating savings based on your specific situation. Geographical and eligibility restrictions apply.

3 Geographical and eligible restrictions apply. T&Cs apply.



4 Next Gust Fixed 12-month tariff: Electricity supply backed by Yorkshire wind generators. Electricity comes from the National Grid. Requires an eligible smart meter. Exit fees and T&Cs apply.

5 Next Pledge tariff can provide up to £50 savings, applied as a reduction on unit rates split across both electricity and gas (£25 saving per fuel) based on an Ofgem typical medium usage. Next Pledge is a 12 month fixed term tariff with prices changing to stay below price cap every three months. Requires payment by Direct Debit and a Smart meter installation where possible. There are no exit fees with this tariff.

Since its launch in August 2023 - the Next Pledge tariff has received positive reviews from and/or been deemed worthy of consideration by credible finance/money journalists across various money-saving focused websites.

6 Savings information for heat pumps provided by the Energy Saving Trust based on a standard air source heat pump in an average sized, four-bedroom detached home, with radiator upgrades as required versus an old G-rated gas boiler.

7 These are example figures only, based on standardised MCS calculations. Savings are based on property fitted with a south-facing solar array in central England on a roof with a 35-degree tilt and no shading, with electricity consumption of 4,800 kWh per year (with the customer Home all day), at a tariff rate of 24.5p/kWh. The solar array contains 12 x 435W panels (5.22 kWp) generating 4,881 kWh/year, fitted with a 5.1 kWh (5.1 kWh usable) battery.

** Cost saving estimate based on insulating a semi-detached gas-heated home with Cavity Wall Insulation. The figure also takes into consideration fuel prices as of October 2024. Information sourced from: https://energysavingtrust.org.uk/advice/cavity-wall-insulation/

*** Potential annual savings are based on the installing of a standard air source heat pump in an average sized three-bedroom detached home. Savings are dependent on your property size, your household electricity usage, the current of any existing electric storage heater used and its age. Savings are dependent on the current oil/LPG system used, and their age. Figures are sourced from the Energy Saving Trust website and are based on fuel prices as of October 2024.

† Information correct as of 4 October 12am. Off-peak rate of 6.7p per kWh, off-peak hours 12am - 7am. Based on all dedicated “like-for-like” EV tariffs on the market, customers have a saving of £57 vs market average. Dual fuel customers paying by Direct Debit consuming medium energy usage as defined by Ofgem’s Typical Domestic Consumption Values (TDCV), (2,700kWh of electricity and 11,500kWh of gas per year, plus an additional 1,976kWh of electricity for car charging), at an average for all 14 regions. Calculations are based on tariff only.

^ Calculated as charging an average electric vehicle battery of 40kW at 6.7p/kWh available between 12am and 7am.