Solar energy is one of the fastest-growing and most sustainable solutions to our planet’s energy needs. But as solar adoption increases, so do the misconceptions—especially around solar maintenance. These myths often lead homeowners and businesses to hesitate or invest in unnecessary services. In this article, we’re busting the top 5 solar maintenance myths with facts, clarity, and expert insight.

Solar Panels Require Constant Cleaning

One of the most common myths is that solar panels need frequent, even weekly, cleaning to function properly. Solar panels are designed to be low-maintenance and self-cleaning in most environments. Thanks to their tilt angle, rain naturally washes away dust and debris. Unless you're in a highly polluted or desert region with significant dust accumulation, you won’t need to clean your panels more than once or twice a year.

Even in urban areas, output loss due to surface dirt is usually just 1–2%. Compare that to the cost and effort of constant cleaning, and you’ll realize it’s not worth it. At Solarium, we recommend a visual inspection every six months—and professional cleaning only if performance drops.

Panels Degrade Quickly Without Maintenance

Solar panels are engineered to last. Modern PV panels degrade at only about 0.5% per year—meaning after 25 years, they’ll still be producing roughly 87% of their original output. Routine maintenance doesn’t significantly extend this efficiency—it’s built-in. The best “maintenance” is monitoring your solar performance digitally (which most systems provide) and scheduling inspections every 2–3 years, unless an issue arises.

What matters more is:

• Proper installation
• Quality hardware
• Environmentally suitable placement (ventilation, shade)

Only the Installer Can Perform Maintenance

Some companies scare clients into thinking only their specific installers can service the solar system, or else the warranty will be void. This is often a sales tactic. While it's true some manufacturers prefer certified technicians, most warranties are product-based, not installer-based. That means any qualified solar technician can perform inspections, cleanings, and diagnostics.

Always check your manufacturer warranty and documentation. In general, you have flexibility in who maintains your system—as long as proper documentation and certified professionals are used.

Maintenance Costs Cancel Out Savings

The biggest fear? That maintenance expenses over time will eliminate your solar savings. Annual maintenance costs are extremely low for solar systems, especially compared to HVAC or fuel-powered systems. Most residential users spend $0–$200 per year in maintenance—and often less.

And considering that a well-functioning system can save you $600–$1,500 per year on electricity, the savings far outweigh any costs. With warranties covering major equipment for 10–25 years, you’re well protected.