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Is Your Photovoltaic System Losing Power?

Find out how an invisible enemy, dirt, is silently reducing your earnings and how the professional PV Cleaner can restore 100% of the efficiency of your solar investment.


Don't let dust, smog, and limestone cloud your energy future. Read on to discover the ultimate solution.

Discover FV Cleaner now

You have invested in a photovoltaic system with a promise: clean energy, savings in bills and a concrete contribution to the planet. You watched with satisfaction as the panels shining on the roof, imagining the kilowatt hours piling up. But over the months, you may have noticed that the numbers on your inverter display are no longer what they used to be. Production seems to be dropping slowly, inexorably, and you can't understand the reason. It is not a technical fault, nor is it a radiation problem. The culprit is much more sneaky and settles silently, day after day, on the surface of your panels: dirt.

Many underestimate the impact of what appears to be just a thin veil of dust. They rely on rain, thinking that a downpour might be enough to wash everything away. The reality, unfortunately, is quite different. Rain, especially in urban or industrial areas, is often loaded with particulate matter and minerals that, once the water has evaporated, leave halos and calcareous deposits. This layer of dirt, composed of fine dust, smog, pollen, bird droppings, salt and organic residues, acts like an opaque film that shields the sun's rays, preventing them from reaching photovoltaic cells. The result? A loss of efficiency that, according to industry studies, can vary from 10% to peaks of 30% in the most serious cases. In practical terms, it's as if part of your system is constantly turned off, causing you to lose money every single day.

The Silent Enemy: The Problems Caused by the Dirt You Ignore

Drastic Fall in Performance

The most obvious and immediate problem. Every speck of dust, every speck of smog, acts as a small obstacle to sunlight. Multiplied millions of times over the total surface of your panels, this effect creates a barrier that can significantly reduce energy production. You are producing and earning less than you could, frustrating part of your initial investment.

Risk of Hot-Spots and Permanent Damage

Dirt never settles evenly. Bird droppings or glued leaves create persistent shadow areas on individual cells. These cells, unable to produce energy, behave like resistors, overheating. This phenomenon, known as a 'hot-spot', can permanently damage the cell and, in the long run, compromise the integrity of the entire panel, leading to costly replacements.

Invalidation of the Warranty

Read the warranty contract for your system carefully. Many manufacturers specify that regular maintenance and cleaning are required to keep the coverage valid. Neglecting cleaning could be interpreted as negligence and, in the event of a failure, you could be denied the warranty replacement of a panel, turning a small saving on cleaning into a huge expense.

Tanica del detergente per pannelli fotovoltaici FV Cleaner

FV Cleaner: The Professional Answer for a 100% System

Forget tap water, household glass cleaners or improvised solutions that risk damaging your panels. To combat a specific problem, a specific solution is needed. FV Cleaner it is not a simple soap, but a high-tech professional detergent, formulated specifically for the cleaning and protection of photovoltaic panels.

Its advanced composition has been designed to attack the most stubborn dirt without affecting the delicate materials of the modules, such as treated glass, aluminum frames and rubber gaskets. It is the same type of product used by companies specialized in the maintenance of large solar parks, now also available for your home or business system.

I Want Maximum Performance Now!

Why Is FV Cleaner Different? Concrete Features and Benefits

FV Cleaner contains specific surfactants that dissolve and emulsify the greasy and oily dirt typical of industrial smog and vehicle traffic. In addition, its formula includes sequestering agents that capture and remove limestone and mineral deposits left by rainwater or previous washing with hard water, restoring the glass to its maximum transparency.

This is the real magic of FV Cleaner. After cleaning, it leaves an invisible, hydrophilic and antistatic polymer film on the surface. This protective shield does two extraordinary things: first, it reduces the accumulation of electrostatic charge that attracts dust; second, it makes rainwater slide away more evenly, taking dirt with it ('easy-to-clean' effect). The result? The panels stay clean much longer, spacing out cleaning operations.

One of the worst enemies of photovoltaic efficiency are the halos left by unsuitable detergents or by imperfect drying. These halos create micro-refractions that deflect sunlight. FV Cleaner is formulated for quick and total rinsing, even with medium-hard water, ensuring a perfectly crystalline surface free of residues that could compromise solar absorption.

Its pH-controlled formula is designed to be effective on dirt but gentle on panel components. It does not corrode aluminum frames, does not dry rubber seals and does not opacify anti-reflective glass. In addition, it is rapidly biodegradable, in compliance with the environment and current regulations, allowing you to clean your system in a sustainable way.

Practical User Guide: Clean Your Panels Like a Pro

Achieving excellent results with FV Cleaner is simple. Follow these steps for safe and effective cleaning.

  1. 1. Choose the Right Time: Never clean panels under the scorching sun or when they are very hot. The heat would cause the water and detergent to evaporate too quickly, creating halos that are difficult to remove. Ideal times are early morning, late afternoon, or a cloudy day.
  2. 2. Safety First: If your plant is on the roof and you are not sure how to operate safely, trust a professional. If the access is easy and safe, always use non-slip footwear and all the necessary precautions.
  3. 3. Prepare the Solution: FV Cleaner is a concentrated product, which makes it very economical. Dilute 1% to 3% in water (10 to 30 ml of product per liter of water). For normal dirt, a 2% dilution is more than sufficient. For very stubborn and caked dirt, you can increase the concentration.
  4. 4. Application: Spray the diluted solution evenly over the surface of the panels, starting from top to bottom. You can use a low-pressure sprayer (such as those for gardening) or a fleece spreader mounted on a telescopic rod. Let it act for a few minutes, but without letting the product dry.
  5. 5. Delicate Mechanical Action: Use a soft bristle brush, specific for photovoltaic panels, or a non-abrasive sponge, always mounted on a telescopic rod. Pass gently over the entire surface to mechanically remove dirt softened by the detergent. Do not apply excessive pressure.
  6. 6. Abundant Rinse: Rinse the panels thoroughly with clean water, preferably demineralized or low in lime for a flawless result. Here, too, proceed from top to bottom to prevent dirty water from leaking onto areas that are already clean. Make sure to remove any traces of foam.
  7. 7. Admire the Result: Manual drying is not necessary. Thanks to the FV Cleaner formula, the water will slide away leaving a shiny, streak-free and protected surface. Enjoy your system back to maximum efficiency!

FV Cleaner vs. Other Methods: The Comparative Table

Still undecided? Let's see in black and white because FV Cleaner is the superior choice for the health and performance of your system.

Feature FV Cleaner Network Water Only Household Cleaners
Effectiveness on Smog and Greasy Dirt excelling Scarce Discreet
Limestone Deposits Removal Excellent Nothing (in fact, it gets worse) Risky
Antistatic Protective Effect Yes, long lasting No No
Halonless Final Result Guaranteed tricky Almost Impossible
Safety on Glass, Aluminum and Seals 100% Safe Sicura Very Risky
Long-Term Cost/Benefit Ratio Maximus low Negative (risk of damage)

The Investment That Pays Off by Itself: Let's Do Two Counts

You might think that buying a specific detergent is an unnecessary expense. In fact, it's one of the most profitable investments you can make for your plant. Let's see a practical example:

  • Photovoltaic system from 6 kWp.
  • Estimated average annual production: 7,200 kWh.
  • Average energy price (purchase): 0.25 €/kWh.
  • Loss of efficiency due to dirt: 15% (a conservative estimate).

Let's calculate the annual economic loss: 7,200 kWh * 15% = 1,080 kWh of lost production.
Multiplied by the cost of energy: 1,080 kWh * 0.25 €/kWh = 270€ lost every year!

The cost of a tank of FV Cleaner, which allows you to carry out multiple cleaning cycles, is a minimal fraction of this loss. By regularly using FV Cleaner, not only do you immediately recover these 270€, but you ensure that your system always operates at its maximum potential, maximizing your return on investment year after year.

Pannello fotovoltaico perfettamente pulito che riflette il cielo

Frequently Asked Questions (FAQ)

The ideal frequency depends on several factors: the area in which you live (countryside, city, industrial area, maritime area), the inclination of the panels and the rainfall. As a general rule, a thorough cleaning with FV Cleaner is recommended at least twice a year: one in spring to remove winter dirt and prepare the plant for the months of maximum production, and one in autumn to eliminate pollen and summer dust. In particularly dirty areas, extra intervention may be necessary.

Being a concentrated product, the yield is very high. With an average dilution of 2% (20 ml per liter), a 5 kg tank (about 5 liters) allows you to create 250 liters of cleaning solution. Considering an average consumption of 0.5 liters of solution per square meter, with a single tank you can clean about 500 square meters of panels, a surface sufficient to clean a medium to large household system several times.

FV Cleaner has been specifically formulated for cleaning solar and photovoltaic panels. Its delicacy on materials such as glass, aluminum and plastic makes it potentially also usable for cleaning windows, verandas or greenhouses. However, it is always recommended to test the product on a small hidden area before proceeding on a large scale on materials other than those for which it was designed.
A small gesture for a great result

Don't Wait for Your Performance to Fall

Every day that your panels get dirty, you're wasting energy and money. The investment you made deserves to work to its full potential. With FV Cleaner, you have the professional solution to protect your panels, maximize production and ensure the highest possible economic return. It's a smart, safe, and profitable choice.

Restore the Power of Your System Now!

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PV Cleaner 5Kg photovoltaic panel cleaner
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PV Cleaner 5Kg photovoltaic panel cleaner

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