Solar panel maintenance and servicing in Ireland
Solar panels are a long-term investment in clean, renewable energy — but like any system, they need occasional care to keep working at peak performance. Learn how to maintain your solar PV system in Ireland and extend its lifespan for decades to come.
Get advice on servicing your solar panels
How long do solar panels last?
In Ireland, most high-quality solar panels have a lifespan of 25 to 30 years — and in many cases, they continue producing electricity well beyond that. With advancements in solar technology, newer panels may even exceed 30 years of effective performance.
The key to making the most of this lifespan? Proactive maintenance. While solar systems are known for being low-maintenance, keeping them clean and regularly inspected ensures you get consistent performance and savings over time.
What does solar panel maintenance involve?
Solar panel systems have very few moving parts, which means fewer things that can go wrong. However, to maintain efficiency, the following upkeep is recommended:
- Panel cleaning: Remove dust, dirt, bird droppings, and leaves that may block sunlight and reduce output.
- Visual inspections: Check for any visible cracks, wear and tear, or discolouration on the panels or mounting system.
- Connection checks: Ensure that all wiring, connectors, and the inverter remain secure and corrosion-free.
- Monitoring output: Use your energy monitoring system to track performance and spot any sudden drops in production.
In general, a well-maintained system should require little more than an annual check-up and occasional cleaning, especially if located in a rural or coastal area where debris may build up faster.
Professional solar servicing in Ireland
While homeowners can perform basic visual checks and cleaning, it’s a good idea to schedule professional servicing every few years. This typically includes:
- System diagnostics and fault checks
- Inverter testing and software updates (if applicable)
- Inspection of mounting integrity and roof fixings
- Performance assessment against expected generation
A certified technician can identify issues early, recommend upgrades if needed, and help ensure your system remains compliant with grant scheme requirements or warranty conditions.
Common issues to watch for
Although solar PV systems are robust, a few minor issues can affect output:
- Shading: New growth from trees or nearby buildings can reduce sunlight exposure over time.
- Weather damage: While panels are built to withstand Irish weather, high winds or hail may cause rare damage.
- Loose connections: Expansion and contraction from temperature shifts can loosen fittings and reduce efficiency.
- Inverter faults: Inverters typically last 10–15 years, so older systems may need a mid-life replacement.
How to care for your solar system year-round
To get the most from your investment:
- Visually inspect the panels twice a year
- Gently clean panels with a soft brush and water if dirty
- Keep the inverter in a dry, shaded place with adequate ventilation
- Check your energy monitor or electricity bills for signs of reduced output
- Book a professional service every 3–5 years or as advised by your installer
Why good maintenance matters
Extend the lifespan of your solar panels
Simple upkeep can keep your system running efficiently for 30+ years.
Regular maintenance is a simple way to protect your investment, maintain warranty cover, and ensure your panels continue generating clean, low-cost electricity for years to come. The better your upkeep, the longer your panels will last and the greater your long-term savings.
Need help maintaining your solar PV system?
We connect Irish homeowners and property managers with trusted solar service providers. Whether you need an annual check, inverter repair, or just peace of mind, we’ll help you keep your system running smoothly.
Book a solar maintenance check
Frequently asked questions
How often do solar panels need to be cleaned?
Once or twice a year is usually enough, but more frequent cleaning may be needed in rural or coastal areas with higher dust or debris levels.
Do solar panels degrade over time?
Yes, most panels lose a small amount of efficiency each year — typically around 0.5% — but regular maintenance can help limit this degradation.
How do I know if my panels are working properly?
Check your energy monitor or electricity bills. Sudden drops in output may indicate a problem that needs investigation.
What should I do if my inverter stops working?
Contact a certified technician. Inverters often display error codes that can help diagnose the issue. Replacements may be needed after 10–15 years.
Can poor maintenance affect my grant or warranty?
Yes. Many warranties require evidence of basic upkeep. Keeping your system serviced helps protect your warranty and performance guarantees.
