Introduction A well-installed solar PV system can last 25+ years—but only if it’s properly maintained. Below are some of the most frequently asked questions we get from customers about maintaining their solar system and understanding its long-term performance.
Q1: Do solar panels need regular maintenance? A: Generally, solar panels are low maintenance. However, periodic cleaning and visual inspections can help sustain peak performance—especially in dusty or coastal areas.
Q2: How often should panels be cleaned? A: Once or twice a year is usually sufficient. Rain helps naturally clean the panels, but a professional clean can improve yield by up to 5–10% if soiling is evident.
Q3: Do inverters require servicing? A: Inverters typically require no annual servicing, but it’s good practice to inspect them annually. All systems are connected to a portal so are available to check 24/7 for performance and issues.. Check for dust buildup, software updates, and error codes.
Q4: What is the typical lifespan of system components?
- Solar Panels: 25–30 years (performance warranty)
- Inverters: 10–15 years (depending on brand and usage)
- Batteries: 10–12 years or up to 10,000 cycles (for quality lithium-ion)
Q5: What is the biggest cause of long-term faults? A: Poor cable management, water ingress, and connector fatigue are top causes. Systems should be designed with longevity in mind from the start.
Q6: Can battery performance decline over time? A: Yes. All batteries experience degradation. Expect 10–15% performance loss after 8–10 years. Timely upgrades and matching battery ages help maintain system balance.
Q7: Should I update my system firmware? A: Absolutely. Many inverters and smart systems receive updates remotely. These can improve safety, efficiency, and compatibility with future add-ons. System software updates: All systems can be upgraded on site. Modern systems can be upgraded off site and the more advanced systems such as Sigenergy upgrade/update automatically.
Q8: What are signs something is wrong?
- Lower than expected yield
- App showing irregular battery levels
- Frequent tripping of MCBs or RCDs
- Visible damage to panels or cabling
- No communication with monitoring portal
Q9: How long does a system stay efficient? A: Modern systems like those we install are expected to retain 90% of their original performance after 25 years.
Q10: Does Moontree Solar offer system servicing? A: Yes. We provide system performance inspections, performance audits, system expansion consultations and repairs. Contact us to schedule a system checkover.
Final Note: With quality installation and periodic checks, your system will function at peak performance and safety providing clean renewable energy for decades.
