Check the finance, not just the solar system.
A solar proposal can look affordable as a monthly payment while costing substantially more over the full finance term. The equipment and financing should be assessed separately.
Monthly affordability is only one part of the picture. Compare the underlying cash price with the total repayable.
What to check
- Cash price versus financed price
- Deposit
- Monthly payment and term
- Total amount repayable
- Interest and fees
- Savings assumptions
Compare with the cash price first
Understanding the underlying installation price helps separate the value of the solar system from the cost of borrowing. A low monthly payment can conceal a long repayment term.
Keep projected savings separate
Actual savings depend on generation, household consumption and future tariffs. Do not treat a forecast saving as equivalent to a guaranteed finance payment reduction.
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
Should I compare solar finance using monthly payment alone?
No. Look at the total amount repayable, term, fees and underlying cash price.
Can solar savings be guaranteed?
Actual savings vary with generation, usage and tariffs, so projections should be treated as estimates rather than guaranteed returns.
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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