+ Professional cleaning and maintenance services for the entire photovoltaic system
Winter brings with it a number of challenges for any PV system owner, whether we are talking about a residential installation of a few kW or a large solar park. Snow, ice and very cold temperatures can temporarily affect energy production and in some cases even jeopardize the integrity of the panels if they are not properly maintained. Although photovoltaic panels are designed to work efficiently even in cold weather, snow deposits can block the sun's rays and drastically reduce efficiency. For this reason, it is useful to know safe and practical methods for clearing snow without endangering the system or the safety of the user.
Below you will find a complete guide to cleaning PV panels in the cold season, along with professional advice and information on our full maintenance services for the entire PV system.
❄️ 1. Why does snow accumulate on panels and how does it affect production?
The photovoltaic panels are covered with specially treated glass with a smooth surface, but this does not guarantee the automatic removal of the snow layer. There are several factors that influence the accumulation:
Panel Angle: Panels installed with a lower slope have a greater risk of snow sticking to the surface.
Temperature: At very low temperatures, a thin film of ice can form between the panel and the snow, which prevents sliding.
Type of snow: Wet, heavy snow adheres more easily than dry snow.
The wind: Sometimes the wind blows the snow away naturally; other times it can compact it.
When the panels are completely covered, the production drops to zero because the light no longer reaches the photovoltaic cells. Therefore, in certain situations, snow removal is essential, especially in areas with long winters and heavy snowfall.
❄️ 2. Is it mandatory to clean the snow from the panels?
Most of the time, the panels can clean themselves due to natural heating in the sun. However, there are scenarios where intervention becomes necessary:
The snow layer is thick (more than 10–15 cm).
The photovoltaic system has a small angle and the snow does not slide naturally.
You have an off-grid system and you are completely dependent on the energy produced.
Panels are covered for days and production is compromised.
The applicant wants to maximize production under all conditions.
In these cases, manual cleaning or calling in professionals can bring the panels back to optimal performance.
❄️ 3. Safe methods for cleaning photovoltaic panels
✔ 3.1 Use the right tools
Cleaning is done exclusive with non-abrasive tools. Avoid metal, hard brushes, shovels or regular squeegees altogether. These can scratch the glass and reduce the efficiency of the panels in the long run.
Recommended tools include:
telescopic brushes with soft bristles
soft rubber squeegees
special brushes for solar panels
professional cleaning systems with controlled pressure
These tools remove snow without damaging the sensitive surface.
✔ 3.2 Avoid hot water [#$$#]
Temperature differences can cause thermal shock, leading to microscopic cracks in the glass. These cracks can develop into visible cracks or reduce the performance of the module.
✔ 3.3 Clean only in safe conditions
Do not clean panels when:
the surface is covered with ice
the roof is slippery
the weather is blizzard or strong gusts
there is no stable access or footholds
Personal safety is more important than any temporary energy gain.
✔ 3.4 Do not step on the panels
Even though they look strong, the panels are not designed to support the weight of a person. Microcracks caused by ironing can irreparably affect performance.
✔ 3.5 Let the sun help you
In many situations, snow will melt naturally within hours or days, even when temperatures are low. The panels absorb the heat and accelerate the melting from the inside.
❄️ 4. When is it necessary to call in professionals?
For high roofs, hard-to-reach areas or extensive systems (including photovoltaic parks), we recommend that you turn to specialists. Response teams use dedicated equipment, ensure safe working at height and can quickly clear hundreds of panels without risk.
☀️ Our cleaning and maintenance services for photovoltaic systems
In addition to recommendations and advice, we offer complete professional services of cleaning and maintenance for the entire photovoltaic system, regardless of the season or the size of the facility.
🔧 What our services include:
Cleaning panels in winter and summer
Washing with demineralized water and professional equipment
Removal of dirt, dust and stubborn deposits
Checking electrical connections
Complete visual inspections of the system
Performance analysis and diagnostics
Cleaning of inverters, junction boxes and structure
Regular maintenance for maximum efficiency
Quick interventions in case of breakdowns
🎯 Benefits:
Increasing energy production
Longer system life
Long-term cost reduction
Optimal performance all year round
Eliminating risks of damage or injury
📩 Do you need cleaning or maintenance for your photovoltaic panels?
We are here to help you!
We offer professional services for the entire photovoltaic system: panels, structure, connections, inverter and auxiliary components, adapted both for small installations and for industrial parks.
Contact us for a personalized offer and quick intervention.
contact: oferta@ecosolaris.ro
