ASH Group steigert Erträge mit professioneller Solarreinigung
Your photovoltaic system works tirelessly in the background, producing electricity for your home or business. However, a fine layer of pollen, particulate matter, soot, and bird droppings constantly accumulates on the modules. This soiling can reduce energy yield by 5 to 15 percent, and in heavily polluted regions by as much as 30 percent. For a 30 kWp system, this quickly translates to several hundred to over a thousand Swiss francs per year – money that your system should actually be generating for you.
Professional cleaning thoroughly removes these deposits without damaging the modules. ASH Group GmbH, based in Künten (AG), specializes in the gentle cleaning and maintenance of photovoltaic systems. Owner Andreas Schärer personally guides you from the initial assessment to the completed cleaning – from private homes to commercial properties.
ASH Group GmbH
Egg 1
CH-5444 Künten
+41 (0)56 552 96 00 (Tel.)
info@ashgroup.ch (email)
www.ashgroup.ch (web)
Contact ASH Group GmbH Do you want to secure the yield of your photovoltaic system or have the condition of your modules checked? Professional solar panel cleaning ensures clear performance figures and long-term value retention. Andreas Schärer looks forward to your inquiry.
Why professional solar panel cleaning makes sense
Perhaps you’ve already wondered whether professional cleaning is really necessary, or whether a good rain will do the job. While rainwater does wash away loose dust, stubborn deposits remain on the glass surface. Particularly at the glass-frame junctions, persistent films of dirt, moss, or lichen can form over time, refracting the incoming light or permanently shading certain areas.
Reaching for the garden hose or pressure washer seems like the obvious solution at first glance. However, tap water contains limescale and minerals that leave residues when it dries. This creates streaks and spots that further reduce light transmission. A pressure washer can also damage seals, frames, and coatings, and in the worst-case scenario, force moisture into the modules.
Solar modules are robustly constructed, yet feature highly precise technology. The glass surface is designed to allow as much light as possible into the cells. Any disturbance – caused by dirt, limescale, scratches, or growth – reduces light transmission and thus the energy yield.
The focus is on gentle cleaning using demineralized water from modern reverse osmosis systems. This water is free of limescale and minerals, dries without residue, and leaves no streaks. In combination with specialized brush systems, even stubborn deposits on frame edges, transitions, and hard-to-reach areas can be removed – entirely without harsh chemicals. The sensitive glass surface remains protected, and your modules can once again absorb sunlight without obstruction.
The goal: Your system should once again deliver the performance you invested in – visibly clean, but above all with measurably stable returns and long-term value retention.
Solar panel cleaning and PV service: What we do for you
Photovoltaic modules are exposed to wind, weather, and environmental influences on a daily basis. Over time, various particles accumulate on the glass surface: pollen, fine dust from road traffic, emissions from agriculture or industry, and soot from fireplaces and heating systems.
Agricultural roofs are subject to dust from fieldwork and fine particles from barn air, while commercial and industrial roofs also accumulate deposits from production processes.
Process:
- On-site inspection of your system with regard to location, roof pitch, accessibility and visible soiling.
- Assessment of cleaning requirements and preparation of a transparent offer.
- Gentle cleaning with demineralized pure water and special brushes, without chemicals and without limescale stains.
- Joint discussion to determine the appropriate intervals for inspection or further cleaning of your system.
More than just clean modules: Additional services for your PV system
Beyond cleaning, ASH Group GmbH offers additional services to help you keep an eye on your system.
This includes:
- System check and maintenance: Visual inspection of modules, substructure, cabling and inverters to detect abnormalities early.
- Thermography and drone analysis: Thermal imaging helps to find hotspots, defective cells, or local overheating that may indicate damage or contamination.
- Sensor support: Measurements of soiling levels or yield deviations help to determine the economically sensible cleaning time.
- Service packages: From a one-off deep cleaning to recurring maintenance and a targeted spring check, various options are available to you.
When is cleaning worthwhile?
Spring is an ideal time for an inspection. After winter, the heating season, and pollen season, it becomes clear how much stress your modules have been under.
If your facility is located in an agricultural environment, near busy roads or in an industrial area, more frequent cleaning may be economically advantageous.
Depending on the location, the appropriate intervals range from one cleaning per year to several cleanings.
For which systems is cleaning particularly important?
Basically, every PV system benefits from clean modules.
However, the effect becomes particularly apparent in locations with high pollution levels:
- In residential areas, pollen, fine dust and traffic debris are a problem.
- In agricultural areas, this is caused by dust from fields, feed particles, and barn air.
- On industrial and commercial roofs due to exhaust fumes and production residues.
Roofs with a shallow slope or almost horizontal installations also get dirty faster because water drains off less efficiently and particles remain.
Typical dirt stains form on the lower edges, permanently shading individual module areas.
Here, regular, professional cleaning can make the difference between «running somehow» and «running optimally».
Additional services related to your property
In addition to solar panel cleaning, ASH Group GmbH also supports you in other areas related to property and transport. These include, among others:
- Trailer rental from 750 kg to 3’500 kg for private and commercial transport.
- Home service and maintenance work such as minor repairs, installations and cleaning.
- Interior building maintenance: stairwell cleaning, window cleaning, maintenance of underground parking garages and minor technical checks.
- Exterior building maintenance and garden care: lawn, hedges, leaves and weeds kept in good condition.
- Clearances and disposals including sorting, recycling and professional disposal.
- Removals and move-out cleaning including furniture transport, assembly and final cleaning.
Contact ASH Group GmbH Clean modules mean measurably higher yields. If your photovoltaic system is losing power or hasn’t been cleaned for a long time, a professional inspection is worthwhile. Professional solar panel cleaning protects your investment and ensures that your system can reach its full potential. Andreas Schärer will support you competently and reliably in all tasks that arise.
ASH Group GmbH
Egg 1
CH-5444 Künten
+41 (0)56 552 96 00 (Tel.)
info@ashgroup.ch (email)
www.ashgroup.ch (web)
Image source: ASH Group GmbH