For a solar installation to operate at its maximum capacity, proper maintenance of the solar panels is essential. Solar energy is an increasingly popular energy source for businesses and homes, helping to reduce electricity bills and contribute to environmental protection.
In recent years, the use of solar energy has grown exponentially in Spain. According to data from the Spanish electricity grid operator, photovoltaic energy already accounts for more than 8% of the total electricity generated in the country, a figure that continues to rise thanks to the promotion of renewable energies and subsidies for self-consumption.
However, the accumulation of dust, leaves, mud, or bird droppings can reduce the performance of photovoltaic modules by between 8% and 15%, directly impacting energy production. Therefore, regular cleaning of solar panels and preventative maintenance are essential.
Why is it important to properly maintain photovoltaic panels?
Since these systems are constantly exposed to the elements, it’s essential to implement preventative maintenance to preserve both performance and safety. Below, we explain why it’s crucial not to neglect this task.
Longer lifespan of the photovoltaic system
Regular maintenance is key to extending the lifespan of a photovoltaic system. Although solar panels are designed to withstand harsh conditions, the passage of time, accumulated dirt, or minor malfunctions can significantly shorten their lifespan if not detected and corrected promptly.
An installation that receives regular cleaning and technical inspections can easily exceed 25 years of efficient operation. Furthermore, components such as the inverter, wiring, and anchoring structures are better preserved, reducing the need for costly replacements or interventions.
Improved performance and energy savings
When solar panels are covered in dust, mud, or organic matter, their ability to capture sunlight is drastically reduced. This leads to a direct drop in energy production, impacting the projected cost savings. In fact, several studies estimate that poor cleaning can result in an 8% to 15% decrease in efficiency.
Maintaining photovoltaic modules in optimal condition not only improves energy production but also ensures a faster return on the initial investment. This is especially relevant in sunny climates like Mallorca’s, where making the most of every hour of sunshine has a real impact on the electricity bill.
Security and peace of mind for the owner
Having a good maintenance plan also means greater safety. Regular inspections help identify hot spots, deteriorated connections, or faulty insulation that, if left uncorrected, can lead to short circuits, system failures, or even electrical fires.
Furthermore, by entrusting the maintenance of the installation to qualified professionals, the owner can rest assured knowing their investment is in good hands. This not only provides greater control over the operation of the solar panels but also guarantees compliance with required electrical safety standards.
Risks of not performing preventive maintenance
Ignoring the maintenance of a photovoltaic installation has both short- and long-term consequences. The most immediate is a loss of performance, which directly impacts energy production and, therefore, cost savings. But it can also lead to the development of silent technical failures that worsen over time.
Without preventative maintenance, homeowners often only discover problems when the system stops producing energy or exhibits visible errors. At that point, the solution is usually more expensive, more invasive, and, in some cases, irreversible. Therefore, prevention is always more cost-effective and safer than repair.
Cleaning solar panels to maximize their performance
In climates like Mallorca, where solar production can be very high for much of the year, keeping the panels clean is essential to ensure optimal performance.
How often should they be cleaned?
The ideal cleaning frequency will depend on several factors, such as the environment where the panels are installed (urban, rural, or industrial area), the tilt of the panels, and the time of year. Generally, cleaning every 3 to 6 months is recommended, although in areas with higher accumulations of dust, pollen, or sand, it may be necessary to do so more frequently.
There are specific situations that may warrant immediate cleaning, such as after a dust storm, falling leaves in autumn, or the presence of bird droppings. While some rain may wash away some of the dirt, it is not enough to keep the system clean, as it often leaves limescale or mud stains on the surface.
Techniques recommended by professionals
Technicians specializing in solar panel cleaning use tools and products specifically designed to avoid damaging the surface or electrical components. Among the most common techniques is the use of reverse osmosis water, which prevents limescale buildup and provides a perfect finish without the need for harsh chemicals.
Professionals use telescopic poles, soft brushes, and appropriate safety equipment when the panels are located on roofs or in elevated areas. This type of work guarantees effective and safe cleaning, avoiding unnecessary risks to both the installation and the user. Opting for a specialized service is the most reliable way to keep the system in perfect condition.
Common mistakes when cleaning yourself
One of the most common mistakes is cleaning solar panels during the hottest hours of the day. This can not only cause burns from contact with the hot surface, but also increases the risk of damage from thermal shock when applying cold water to the modules. Ideally, cleaning should be done early in the morning or late in the afternoon, when the temperature is lower.
Another common mistake is using unsuitable products such as detergents, solvents, or abrasive scouring pads, which can scratch the glass or damage the seal of the panels. Even using unfiltered tap water can leave limescale deposits.
How much does solar panel maintenance cost?
The price of maintaining photovoltaic installations can vary considerably, depending on several factors. There is no single rate, as each installation has specific characteristics that determine the complexity of the service. Below, we show you the main aspects that affect the final budget for cleaning or servicing solar panel systems:
- Number of solar panels installed: the more modules the installation has, the more time and resources are needed to clean or check them, which increases the total cost.
- Installation accessibility: Panels located on sloping roofs, high rooftops, or hard-to-reach areas require additional safety measures, which may increase the cost of the service.
- Type of installation: large or industrial installations usually require specific equipment and additional personnel, which translates into a higher cost per intervention.
- Degree of accumulated dirt: panels with a lot of encrusted dirt, excrement or limescale residue need more time and specialized products for effective cleaning.
- Services included in maintenance: some maintenance plans include, in addition to cleaning, technical reviews, inverter inspection, verification of electrical connections or performance reports, which increases the value of the service but also makes it more complete.
- Geographic location: travel to rural or remote areas may incur an extra cost. In Mallorca, for example, services may vary depending on whether it is in urban centers like Palma or more remote areas.
- Frequency of contracted maintenance: annual contracts or periodic plans usually offer more competitive prices per visit than one-off cleanings without planning.
- Technology and materials used: the use of osmosis water, telescopic poles, drones for inspections or specialized tools may increase the price, but also guarantees safer and more professional results.
Professional maintenance service in Mallorca with Nord Baleares
Having a company specializing in solar panel maintenance is the best way to guarantee the performance, safety, and durability of your installation. At Nord Baleares, we offer a comprehensive service throughout the island, tailored to the specific needs of each client, whether for private homes, residential communities, businesses, or industrial facilities.
Cleaning with safe materials
Professional cleaning should be done with products that won’t damage solar panels or leave residues that affect their performance. That’s why at Nord Baleares we use reverse osmosis water, a type of purified water free of limescale and impurities, which guarantees a deep clean without leaving marks or corrosion on the surface.
We use soft brushes, telescopic poles, and non-invasive techniques to access the modules without risk of breakage or damage. This way, we not only achieve optimal results but also preserve the manufacturer’s warranty by following industry best practices.
Technical inspection and fault detection
Our service goes beyond cleaning. Every service call includes a detailed technical inspection of the overall condition of the installation: we check electrical connections, identify hot spots, verify the inverter’s status, and ensure the entire system is functioning correctly.
Thanks to these preventative inspections, it is possible to identify hidden faults before they become serious problems.
Maintenance plan tailored to your facility
Not all solar installations are the same, which is why we offer customized maintenance plans. We analyze the environment, the number of panels, their orientation, tilt, and the installation’s history to establish an optimal cleaning and inspection schedule.
Our clients can choose between one-off services or annual plans that include multiple visits and competitive pricing. This way, we guarantee the best possible care for each photovoltaic system, without overpaying for unnecessary services.
Service available throughout the island: Palma, Inca, Manacor, etc.
At Nord Baleares, we provide service throughout Mallorca, from large urban centers like Palma and Inca to rural, coastal, and industrial areas. Our team travels with all the necessary equipment to handle any type of installation, regardless of its size or location.
If you want to maximize the performance of your solar installation and extend its lifespan, trust Nord Baleares. We offer professional cleaning, preventative maintenance, and fully guaranteed technical inspections. Contact us today for a free, no-obligation quote. Start getting the most out of your solar energy!
