When investing in solar panels in North London, most homeowners want to know: “How long will my system actually last?”
The good news — modern solar panels are designed to last 25–30 years or more, and with professional installation and proper care, they’ll keep saving you money for decades.
🏗️ Average Solar Panel Lifespan
High-quality solar panels from trusted brands (like Jinko, Longi, and JA Solar) typically include:
- 25-year performance warranty (guaranteed 80–85% efficiency after 25 years)
- 12–15-year product warranty on materials and workmanship
At Keenan Solar, we only install Tier 1 panels with full UK warranty support.
⚡ What Affects Solar Panel Lifespan?
Several factors influence how long your solar panels last:
- Installation quality – poor fitting can reduce longevity
- Weather exposure – panels are built to handle heavy rain, frost, and wind
- Cleaning & maintenance – occasional cleaning keeps performance consistent
- Inverter lifespan – inverters usually last 10–15 years and may need one replacement during the system’s life
🔋 Battery & Inverter Lifespan
Battery systems (like EcoFlow or Fox ESS) typically last 10–15 years, with 6,000–10,000 charge cycles.
Inverters are often replaced once during the system’s lifespan — covered by a 15-year Keenan Solar warranty.
🏡 Case Study – Highgate, North London
- Installed: 2014 (10-year-old system)
- Panels: 12 x 300W Tier 1 modules
- Performance Drop: Only ~7% in 10 years
- Status: Still operating efficiently with new inverter installed in 2023
✅ Why Choose Keenan Solar
When you invest in a solar system in North London, you get:
- Tier 1 panels with 25-year performance warranties
- MCS & NICEIC certified installation
- Free bird proofing & scaffolding
- In-house installers (no subcontractors)
- Lifetime aftercare & system monitoring
📍 Areas We Cover
We install solar panels across North London, including Enfield, Barnet, Finchley, Highgate, Camden, Palmers Green, Southgate, and Winchmore Hill.
☀️ Built to Last
Solar panels are a long-term investment — durable, reliable, and designed to power your home for 25+ years.
📞 Call: 020 8133 8704
🌐 keenan-solar.co.uk
📍 North London’s trusted solar installer