If you’re considering solar panels in North London, one of the first questions you might have is: “How long will they actually last?”
The good news is — modern solar panels are built to last decades, and with the right maintenance, they can keep producing clean, free electricity for 25–30 years or more.
Here’s what you need to know about the lifespan of solar panels and how to get the most out of your system.
📅 Average Lifespan of Solar Panels
Most high-quality solar panels will last 25 years or more before their efficiency drops below 80% of their original output.
That means even after two decades, your panels will still be generating a large amount of power.
🏆 Why Quality Matters
At Keenan Solar, we install premium panels with:
- 25-year manufacturer warranty
- Proven long-term performance in UK conditions
- High resistance to weathering, corrosion, and dirt build-up
🔋 Inverter and Battery Lifespan
While panels can last 25+ years, inverters and batteries have different lifespans:
- Inverters: Typically 10–15 years
- Batteries: 10–15 years depending on usage cycles
We use equipment with extended warranties and offer advice on maximising their life.
🛠 How to Extend the Life of Your Solar Panels
- Keep panels clean and free from debris
- Have your system inspected regularly
- Ensure proper bird proofing (included in our installs)
- Use quality mounting and electrical components
📍 Why North London Homeowners Choose Keenan Solar
When you book a solar installation in North London with us, you get:
- All-in-house installation team — no subcontractors
- MCS & NICEIC certification
- Free bird proofing and scaffolding
- Lifetime technical support and aftercare monitoring
- Local 5-star rated service
🚀 Ready to Invest in Long-Lasting Solar?
Solar is a 25+ year investment that can save you thousands on bills while protecting you from rising energy costs.
📞 Call: 020 8133 8704
🌐 keenan-solar.co.uk
📍 Proudly installing solar across North London