Check your solar battery quote before you buy.
Battery quotations can be difficult to compare because capacity, usable energy, power output, inverter integration and warranties vary between products.
These are different parts of the quote. Comparing them separately is more useful than looking only at the total price.
What to check
- Exact battery model
- Usable versus nominal capacity
- Charge/discharge power
- Warranty and cycle conditions
- Hybrid inverter compatibility
- Savings assumptions
Why £ per kWh is not enough
Price per unit of storage is useful as a rough comparison, but it cannot capture differences in power output, warranties, inverter requirements or installation scope.
Look closely at financial claims
Battery payback can change considerably with time-of-use tariffs, export rates and household behaviour. Treat projected savings as assumptions to inspect, not guarantees.
References for this guide
We use relevant public consumer guidance and registers as reference points. These organisations do not endorse QuoteCalm and we do not use their logos as trust badges.
Guidance, prices and schemes change. Follow the linked source for the current position before relying on time-sensitive information.
Frequently asked questions
What battery details should be shown on a quote?
At minimum, look for manufacturer, exact model, capacity, warranty and the proposed inverter or control system.
Can QuoteCalm assess batteries?
Yes. QuoteCalm is designed to extract and assess battery details where they are present in the quotation.
We aim to distinguish information stated in a quotation, calculations we can reproduce, public consumer guidance and things that cannot be known without a property-specific assessment. We do not accept payment from installers to change the outcome of a quote check.
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