Meter Sums

Home battery quote checker

The same sums as in the video Got a Home Battery Quote? 5 Numbers to Check First, with your own numbers. Nothing you type leaves this page.

The short answer, on these numbers

On these numbers this quote takes about 26.7 years to pay back. For a 10-year payback, the price you pay would need to be about £2,550.

Example maths using your numbers. Not financial advice. It leaves out standby power, interest, replacing parts and tariff changes. The first three would lengthen the payback; tariff changes could move it either way.

Your numbers

Advanced

Result

Two checks from the video

VAT on your quote
Tariffs you can use with this battery

The rules are as given in the video (2 November 2026). Suppliers change them, so check the current terms. These tariffs are not priced here.

    How we got this number

    These steps use the numbers you have set above and change as you change them. They are shown so you can check the maths.

    What is fact, what is chosen, what is unknown

    How to read these marks, and what the calculators leave out

    Data as of 2 November 2026. Prices: Ofgem price cap 1 October to 31 December 2026 (the average for England, Scotland and Wales). The Economy 7 night and day prices are Octopus Flexible (Direct Debit), the average of all regions, read 13 November 2026. Like the video, year 1 is rounded to the nearest £10 before wear is taken off. Prices and tariffs change, so check your own. Found a mistake? See Corrections.

    Watch the video: Got a Home Battery Quote? 5 Numbers to Check First. Subscribe on YouTube.