Solar: The 25-Year Journey
Find out how much you could save
Answer a few questions and receive personalised solar quotes — completely free.
Start My QuoteFree, no obligation. Takes 2 minutes.
Ready to see how much you could save?
Get 3 free quotes from MCS-certified installers in your area.
Get Free QuotesWhat happens over 25 years of solar?
The 25-year solar journey: YEARS 1-8: Building equity. Saving £580/yr. Cumulative savings approaching investment cost. YEAR 8-10: BREAK EVEN. Investment recovered. Everything from here is profit. YEAR 12: Inverter replaced (£1,000). Minor setback, quickly recovered. YEARS 12-25: PURE PROFIT. £580/yr × 13 years = £7,540 additional profit. YEAR 25 TOTAL: £14,500 savings - £7,750 costs = £6,750 net profit (100% ROI). With battery + smart tariff: £27,000 savings - £16,250 costs = £10,750 net profit. Panels still working at 85-90% — many owners continue to year 30+.
Frequently Asked Questions
Related guides
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 pumps use electricity at 300-400% efficiency, making them ideal partners for solar.
From our sister site Home Heat Pump Guide
You might also like
Ready to see what solar could save you?
Get free, no-obligation quotes from MCS-certified installers in your area.
Get Free QuotesFree, no obligation. Takes 2 minutes.