Is Solar Worth It in the UK in 2026?

Solar is worth it when the system produces enough useful electricity to justify the upfront cost within a timeframe you are comfortable with. In 2026, the case is strongest when your roof is suitable, your quote is competitive and you can use or export the generated electricity well.

Assumptions reviewed 2 June 2026: the calculator default import rate is aligned to Ofgem’s 1 April to 30 June 2026 average electricity unit rate for Direct Debit customers, rounded to 24.7p/kWh.

A quick worth-it checklist

Roof: enough usable space, limited shading, suitable condition and a sensible orientation.
Generation: annual kWh estimate is realistic, not inflated to make the quote look better.
Self-consumption: your household can use meaningful electricity during daylight hours, or you have a credible battery case.
Export: you can access an export tariff and have the metering needed for payments.
Quote: the price, equipment and warranties are strong compared with like-for-like alternatives.

What makes solar more compelling?

Factor	Why it helps
Higher import unit rate	Every self-used kWh avoids buying more expensive electricity.
Higher self-consumption	More generation is valued at the import rate rather than exported.
Good roof and low shading	Higher annual generation improves savings and export income.
Competitive quote	Lower upfront cost shortens simple payback.

When to be cautious

The quote relies on unusually high generation assumptions.
Most electricity use happens at night and the battery quote is expensive.
The roof needs repair or has major shading that has not been modelled.
You cannot access an export tariff or suitable metering.

Best next step

Run a solar-only estimate first. Then test a battery case separately. If a small change in export rate, self-consumption or generation flips the decision, treat the quote as sensitive and gather better data before committing.

Start here: solar savings calculator · UK solar costs · solar payback period