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.
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.
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?
If you have an optimal solar panel and solar battery, then you can save a year of electricity costs for your home. For the highest total savings, your solar system and a solar battery should have the same capacity. Therefore, if your solar panel size is 10kW, choose from 10kW solar battery sizes.
Starting from February 1st, 2024, the UK government has expanded the 0% VAT scheme to include solar battery storage systems. This applies to new installations of solar panels and batteries together, retrofitting batteries into existing solar panel setups, and standalone battery storage systems linked to the grid.
The battery's life cycle and discharge rate can actually make or break the cost of your solar system. Here's the scoop: A long-life battery might pinch a bit more at first - but in the long haul, it can be better bang for your buck. The overall cost changes once you get a reliable battery in there. Sources: