A 10kWh battery costs around £7,000 by itself, on average. If you add a 5kWh battery onto a solar panel system installation, its price generally falls between £2,000 and £3,000, as you’re already paying for the labour and an inverter. A 10kWh battery costs £4,000-£5,000 if it’s part of a wider solar & battery project.
A 5kW solar battery storage system typically costs around £9,000 to £10,000. The variability in installation expenses for such a system is influenced by factors like the battery’s size and whether it is direct current (DC) or alternating current (AC) coupled. How much does it cost to add a battery to a solar system?
In 2024, the average 10kW solar system cost in the UK is between £10,000 - £11,000. This price includes the supply of the 10kW solar panel equipment, installing and connecting to the electricity supply, and VAT (zero-rated). If you'd like to store a portion of the electricity you generate, you'll have to take the solar battery price into account.
A solar battery for a standard 4kW solar system typically costs £8,000 - £9,500. Solar panel battery cost factors include the battery material, capacity, lifespan, and installation costs. A 4kW system with a battery will cost between £13,000 to £18,500, saving £660 in energy annually.
Our 10kw Solar PV Battery has been matched to 16 brands of Hybrid inverters, plus will work at 48volt dc with many other leading manufacturers. More inverters are being added all the time, so if your inverter's manufacturer is not shown, please contact us and we will investigate its compatibility
A 4kW system with a battery will cost between £13,000 to £18,500, saving £660 in energy annually. Lithium-ion batteries cost more than lead-acid batteries but also have longer lifespans. Did you know how you can benefit from pairing solar batteries with solar arrays?