The price of installing a solar battery falls by around £2,000-£3,000 if it’s installed at the same time as solar panels. The price of the inverter is already folded into the total amount of a solar panel system installation, and adding a battery doesn’t involve much additional labour cost either.
Currently, solar battery prices in the UK cost anywhere between £2,500 and £10,000 depending on the battery capacity, type of battery and lifespan. A typical 5 kilowatt hour (kWh) solar battery, suitable for a three-bedroom house, costs £5,000, on average.
Lithium-ion batteries are the most used battery in domestic solar energy systems, and here’s why: Low cost: They have become the most cost-effective solution for home energy storage with the increase in electric vehicle production, bringing the price down by 97% over 30 years.
The average cost of a 5kWh solar battery on its own is roughly £5,000, including the price of installation and an inverter – but this figure will vary based on multiple factors, such as the quality of the battery and the complexity of the installation. A 10kWh battery costs around £7,000 by itself, on average.
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 lithium-ion battery can cost £3,500 to £6,000 depending on its usable capacity (kWh). On the other hand, lead-acid batteries can only discharge 50% of the total amount of storage which means that they are available at comparatively cheaper prices. A lead-acid battery can cost around £2,000 to £4,500 depending on its usable capacity (kWh).