The most you should pay for a home battery without solar
The same sums as in the video The Most You Should Pay for a Home Battery Without Solar, with your own numbers. Nothing you type leaves this page.
On these numbers a battery costing £4,500 does not pay back. Over 10 years it saves £2,110, which is £2,390 less than it costs. The most you should pay is about £2,110.
Example maths using your numbers. Not financial advice. It leaves out standby power, interest, replacing parts and tariff changes. The first three would lower the result; tariff changes could move it either way.Your numbers
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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
Data as of 2 November 2026. The example prices are round, illustrative figures; the real two-rate prices quoted are Octopus Flexible Economy 7 from 1 October 2026 (GB average, read 2 November 2026). Prices and tariffs change, so check your own. Found a mistake? See Corrections.
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