So, you’ve got solar on the roof. You’ve probably already noticed your power bills drop, and maybe you’re even pocketing a bit of feed-in tariff money. But here’s the truth most sales guys don’t tell you — owning solar isn’t a “fit and forget” deal.
Like any bit of kit, it needs some care and checks if you want the best out of it over 20+ years. This guide walks you through what life with solar really looks like once the installers have packed up and gone
Table of contents
Solar System Maintenance
Solar panels are tough buggers. No moving parts, solid frames, and designed to handle Aussie weather — from hailstorms in Sydney to 40-degree heat in Darwin.
But the one thing they don’t love? Dirt! – Dust, bird droppings, salty sea spray, and even leaves can all reduce efficiency. It doesn’t sound like much, but a dirty panel can lose 5–20% output depending on how bad it gets.
How often should you clean them?
- Most homes: once a year is fine.
- Coastal or dusty regions: every 6 months.
- Surrounded by gum trees or pigeons: more often.
Average Panel Output Loss vs Dirt Buildup
| Condition | Estimated Loss | Cleaning Frequency |
|---|---|---|
| Light dust | 2 - 5% | Anually |
| Heavy dust/ pollen/ salty air | 5 - 10% | Twice a year |
| Bird droppings / sap | 10 - 20% | As needed |
Professional servicing every few years is also smart. An installer can check wiring, roof mounts, and seals that most homeowners won’t spot.
Monitoring Your System
Your inverter is the brain of the whole operation. Most modern units come with apps that track:
- Daily production
- Grid exports
- Alerts if output suddenly drops
The key is to check regularly. Don’t just install the app and forget it. A sudden 30% dip could be a sign of shading, a blown fuse, or a faulty panel string.
Smart meters and online dashboards take it further, showing your household consumption alongside production. This helps you shift big loads, like running the dishwasher or pool pump, while the sun is high in the sky and your system is at max output.
Solar Warranties and Claims
Here’s where most homeowners get caught out. Solar systems come with multiple warranties, and they’re not all the same:
Panel product warranty: 10–15 years, covers defects.
Performance warranty: 25 years, ensures ~80–85% output.
Inverter warranty: 5–10 years, covers the box on the wall.
Workmanship warranty: 5+ years, covers the actual installation and workmanship.
Typical Solar Warranty Coverage in Australia
| Component | Warranty Type | Average Length |
|---|---|---|
| Panels | Product | 10 - 15 years |
| Panels | Performance | 25 years |
| Inverter | Product | 5 - 10 years |
| Battery | Product | 10 years |
| Battery | Performance | Inverter Product 5 - 10 years |
| Installation | Workmanship | 5 + Years |
What if something breaks? First call your installer — they’re responsible for sorting the claim. If they’ve shut down (not uncommon), you go directly to the manufacturer.
Most solar panels in Australia carry a 25-year performance warranty and a 10–15 year product warranty.
Warranties are why it’s important to choose your installer wisely. We have a trusted installer rating system that ensures you have the best shot at going with an installer that will be around for years to come.
Upgrading and Expanding Your System
Your energy needs today won’t be the same in 5 years. Maybe you add a pool, an EV, or the kids turn into teenagers who love air-con. Good news: systems can be expanded or upgraded.
Adding panels: Possible if your inverter has spare capacity. If not, you might need a bigger inverter or even a second system.
Adding a battery: Very common now. Many new inverters are “battery-ready,” but older ones might need replacing with a hybrid inverter.
EV charging: Solar + battery combo is the cheapest way to fuel an electric car.
Common Issues and Fixes
Owning solar is mostly smooth sailing, but a few headaches can pop up:
- Inverter errors: Often fixed with a reset, but recurring faults mean a warranty claim.
- Grid connection problems: Sometimes your retailer, not your system, is to blame.
- Shading changes: A neighbour’s new extension or tree growth can slash production.
Recycling and End-of-Life
Panels last for decades, but they do degrade. Expect ~0.5% output loss per year. That means after 25 years, your system might still be producing 80–85% of its original power.
Australia now has dedicated solar recycling programs. Reclaim PV is leading the charge, with drop-off points and collection services. Panels, inverters, and even batteries can all be recycled safely.
FAQs
Do solar panels need servicing every year?
Not usually. Cleaning once or twice a year plus a professional check every few years is fine.
Can I add a battery later?
Yes. Retrofit batteries are common, but you will more than likely need to upgrade your inverter, too. You are best planning for the future and getting a battery-ready inverter from the get-go in anticipation of adding a battery at some point in the future.
What happens if my installer goes bust?
For product and performance warranties, you need to go directly to the manufacturer. If it’s a wiring issue, you will need to get another installer in for repairs.
How long do solar panels actually last?
The performance warranty in 25 years, but the reality is that solar panel systems last about 15 years. I personally think the 25-year warranty is a sales gimmick as they know you won’t keep your receipt that long.
Can I recycle old panels?
Yes. Australia has dedicated recycling programs like Reclaim PV.
Where to Next?
Owning solar is about keeping your system healthy, tracking its performance, and knowing your options for upgrades. From here, you’ll want to check out:
