British Gas and Sunsave launch home battery offer with no upfront cost and market leading tariffs

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• British Gas is partnering with Sunsave to offer batteries that can be installed in weeks (at no upfront cost) along with a choice of two low priced fixed tariffs to help home battery customers save.

• Store&Save offers the lowest fixed anytime electricity rate in market with savings of up to £640.

• Store&Reward will completely cover the monthly battery package cost for 24 months through a £37.50 monthly bill credit.

British Gas is making it easier for customers to take control of their energy bills by removing the upfront cost of installing a home battery, through its new partnership with Sunsave.

Customers then have the choice of two battery tariffs: Store&Save that provides the lowest fixed anytime electricity rate in market, or Store&Reward which offers customers a low fixed rate and a £37.50 a month bill credit for 24 months to cover the battery cost.

By storing electricity with a home battery when it’s cheaper and using it later, customers could save up to £640 a year on their energy bills. Batteries can be installed in just a few weeks, helping households to start saving sooner.

Tens of thousands of homes have installed solar and batteries so far in 2026, reflecting the growing demand from customers for more control over their energy use. While often installed alongside solar panels, a home battery works well without solar when paired with the right tariffs.

Two simple tariffs designed for saving:

The tariffs work by allowing customers to link their batteries to British Gas which will take control of the charging schedules - giving customers low priced electricity at any time of day. Both tariffs are being launched with competitive unit rates, with Store&Save offering the lowest fixed anytime electricity rate in market.

• Store & Save: A straightforward option focused on ongoing savings offering a low, fixed 24/7 electricity rate of 11p/kWh for all household electricity use and one of the simplest ways to reduce energy bills with a battery. Savings up to £640 per year
• Store & Reward: Ideal for customers looking to offset installation costs, this tariff offers a competitive fixed electricity rate of 22p/kWh, and a £37.50 monthly bill credit for 24 months to help cover the battery subscription. The average battery customer on Store&Reward will save up to £190 a year on electricity and see their battery costs covered for 2 years.

John Evans, Commercial Director at British Gas said: “Customers want more control over their energy – not just what they pay, but how they use it. Home batteries make that possible. By removing upfront costs and launching tariffs designed around real usage, we’re making it easier for customers to get started and see the benefit from day one.”

Ben Graves, Co-founder, Sunsave: “Solar can massively cut energy costs, but it’s not suitable for all homes. If you can’t get solar, you can still save a lot of money with a home battery, especially when it’s paired with the right tariff. Not a lot of people are aware of this today, and so we’re excited to deepen our partnership with British Gas to help more households save.”  

Sunsave installs the battery system — including a 10kWh battery and inverter — in a matter of weeks. Each system comes with a 10-year product warranties, and a 10-year insurance-backed workmanship guarantee, giving customers peace of mind on performance and reliability. Unlike other battery finance schemes, customers own the battery outright and have full flexibility over their payments.

To find out more about the Store&Reward and Store&Save tariffs visit www.britishgas.co.uk/energy/home-battery-tariff. To learn more about a home battery install visit the Sunsave website www.sunsave.energy/homebattery-bg.