How much does a solar battery cost?

A typical 5 kilowatt hour (kWh) solar battery, suitable for a three-bedroom house, costs £5,000, on average. The amount you pay will depend on the amount of electricity the battery can store, also known as its capacity. Prices start at around £2,500 for the smallest storage systems, those under 4kWh.

What is a solar battery storage system?

Solar battery storage systems are designed to store the excess energy generated by solar panels during peak periods of sunlight. They provide a steady supply of electricity during short and cloudy days, which are typical during winter in the UK.

Should you buy a long-life battery for your solar system?

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:

What is the 0% VAT scheme for solar battery storage?

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.

What type of battery is used for solar storage?

Utilised in lithium-ion batteries, the most common type of battery for solar storage. The cost of lithium is influenced by its growing demand and limited supply. Prices can be volatile. Used in the cathode of lithium-ion batteries.

What is a solar battery storage capacity?

Storage capacity refers to the total amount of energy your solar battery can store, but you can’t totally discharge the battery without damaging it, so all systems have a depth of discharge (DoD) limit. This typically ranges from 80%-95%, meaning that there is a lower usable capacity than the quoted maximum storage capacity.