Battery Storage Installation

Adding battery storage to an existing solar system lets you store excess daytime generation and use it in the evening instead of exporting it for a few pence per kilowatt-hour. With the right tariff — such as an off-peak overnight rate — a battery can also charge cheaply from the grid and discharge during expensive peak hours, stacking savings beyond what solar alone delivers.

Most UK homes pay £3,500 to £8,500 for a fully installed battery system in 2026. The price depends on capacity, brand, and whether you need a new hybrid inverter or can add storage to an existing one (DC-coupled retrofits are typically cheaper than AC-coupled). Battery installations currently benefit from 0% VAT until March 2027, and all systems should be installed by an MCS-certified installer to ensure safety, warranty coverage, and eligibility for Smart Export Guarantee payments.

Use our directory below to find MCS-certified battery storage installers near you, compare reviews, and request quotes.

Not sure if a battery is worth it? Read our guide.