As of 1st February 2024 there is no VAT to be paid on batteries regardless of if they are retrofitted to an existing system, an entirely new system or whether the battery is part of a solar PV installation.

At heliowatt we like to go further than our competitors and have confidence in the quality of our installations, that’s why we provide a 5 year workmanship warranty on our work. This is additional to the manufacturer warranties which are typically 10 - 15 years meaning you can rest assured you are well covered.

There are a number of variables that affect this including how much energy you use, when you use that energy, how much you pay for your energy and if you have solar PV how much it generates. We can do these calculations in line with the MCS standards and recommend a capacity best suited to the needs of your property and you.

If you are thinking of increasing your home battery storage capacity we can specify a total capacity that suits your needs. As a general rule if you are consuming your battery and it is being charged back up to full within the day (solar) or alloted off peak time (no solar) then you could well benefit from additional storage capacity.

A battery or electrical energy storage system (EESS) cannot be installed just anywhere. For example loft spaces, understairs, at exit points or where people sleep are all deemed to be inappropriate due to regulations for battery safety. Typically the most easily compliant and practical places are often outside, in a garage or in a utility room. We can check and advise on the best location for your needs that is compliant with the standards of “PAS 63100:2024 Electrical installations. Protection against fire of battery energy storage systems for use in dwellings”.