When is solar NOT worth it?

North-facing roof (55% output, 14-18yr payback). Heavy shading (30%+ loss). Roof needs major repair first. Moving within 2 years (not enough time for payback). All other homes: worth it.

Is the answer different in 2026?

2026 is one of the BEST years: 0% VAT confirmed, electricity at 24.5p (strong savings), 20-22% efficient panels, smart tariffs available, battery prices falling. No significant reason to wait.

Is It Worth Getting Solar Panels?

By Home Solar Guide Team|Updated 18 March 2026|money

Independently written | Evidence-based | Sources cited

Is solar worth it? — For 90% of UK homes: yes. 100-400% ROI, 8-12yr payback, 25yr lifespan. The evidence is clear.

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Is it worth getting solar panels in the UK?

For 90% of UK homes with suitable roofs: YES — decisively. The evidence: £580-£1,100/year savings, 8-12 year payback, 100-400% ROI over 25 years, 0% VAT (saves £1,000-£1,600), 25-30 year lifespan, tax-free returns, inflation protection, and 1.3 million UK homes already proving it works. The 10% where it is NOT worth it: north-facing roof only, heavy unresolvedable shading, very poor roof condition, or moving within 2 years. For everyone else: the longer you wait, the more savings you miss.

Frequently Asked Questions

Related: Home Heating Systems

Solar panels are most powerful when combined with an efficient heating system. Heat pumps use solar-generated electricity to heat your home at 300-400% efficiency — making them the ideal partner for solar.

heat pump running costs in the UK

Heat pumps use electricity at 300-400% efficiency, making them ideal partners for solar.

From our sister site Home Heat Pump Guide