FAQ Help Center
Not sure where to start? Here are some common questions and quick answers from Dauway China about how to clean solar panels and what are the most efficient solar cleaning solutions and systems.
Warranty Program & Ongoing Services
What does your warranty cover?
Standard warranty period for 1 year or within 1000 kilometers mileage, whichever comes first. We offer extendable option with extra charges, to better suit client’s operational reality.
Note: The warranty policy is intended for the main unit body, excluding wearing parts.
How do I file a claim within valid warranty?
Once serious faults are found during cleaning operation, keep a clear documentation of the phenomenon and on-site situation, with photos and recording videos.
Free the malfunctional machine from ongoing activities and contact the supplier for troubleshooting with relavant materials above-mentioned presented. Our engineers will make diagnosis with the issue and evaluate suitable solution for claims within warranty period.
HOW CAN I BUY SPARE PARTS FOR THE EQUIPMENT?
We will recommend a list of consumables and accessories as replacements & spare parts, when clients choose to include them into respective solar cleaning solutions.
These spares are also available for later purchase upon order from the clients in advance, which constitutes part of our after-sales support promise.
Do I need any utility connection at the work site?
Most of models are powered by battery, which can save the trouble of finding a power source that sometime is not readily available in remote or hard to reach areas.
Battery has a designed servive life according to the charge-discharge cycles, also influenced by actual wear and tear under specific working environments.
WHAT IS THE ROUTINE MAINTENANCE FOR THE SOLAR ROBOTS BRUSH?
Although our robots adopt a low maintenance design for optimal uptime and availability, it is advisable to maintain regular cleaning of the brushes after each completion of onsite job performance, with water or compressed air. Please take note that brushes are consumables which don’t enjoy the same warranty rights as the robot main body.
To further extend the service life, please keep the brush block overhang or stowed with face up, to avoid potential deformaton. If untreated water is used for wet cleaning, you might need to take care of spray nozzles and water filters in due time as well.
What precautions should I take when cleaning with your solar robots?
Read the instruction carefully before deployment, and strictly follow correct operational procedures set out in our user manual and pertinent training courses;
Appoint qualified professionals to handle the equipment and put personnel safety first by wearing proper insulation PPE for electric protection, especially so when wet cleaning is performed;
Meanwhile, prevent the use of chemical agent in the water supply and avoid spaying cold water to the extreme hot surface of solar panels, in case thermal shock damage;
Additionally, never walk on the panels or unreliable roof structures without sufficient harness or protection ropes, as this can cause significant harm to both human and equipment when working on steep and elevated sites.
Why should I choose DAUWAY CHINA equipment for cleaning of my solar arrays?
Dauway China is a leading supplier of specialized solar cleaning systems and products, covering a complete range of solar cleaning solutions to suit diverse O&M applications on solar fields.
We position ourselves as your perfect solar assets guardian, to empower your business in the photovoltaic cleaning sector, with our intelligent, efficient, reliable and TCO balanced offers.
Whether you are solar project developers, independent power producers(IPP), solar power station EPCs, professional O&M service providers, third-party panel cleaning contractors, even private solar roof owners, come and find the best answer to a peak-performance PV installation.
Need More Details? Check Our Offers Below!
Solar Cleaning Robots & Application Scenarios
Why Is It a Must To Clean Solar Panels?
Soiling or fouling is one of the largest avoidable drags on solar panel generation performance. Even a thin layer of accumulated dust can tangibly reduce the amount of solar irradiation reaching the photovoltaic cells, thus leading to decreased power efficiency if the cleaning schedule is not optimized accordingly.
Besides, undermaintained PV surface can result in solar module degradation like hotspots, even critical failure requiring complete replacement.
Keeping panels clean is not only essential for ensuring they perform at their best but also necessary to extend their lifespan.
What Is the best cleaning frequency for solar panel maitenance?
The optimal cleaning frequency of a photovoltaic system is highly depending on factors specific to your solar site and environment.
The cleaning intervals shall be adjusted to suit the nature of the dirt, the pave of soiling build-up, local climatic conditions, as well as the very architecture of solar module installations.
Which kind of equipment is needed to clean my solar assets?
The cleaning of small solar panel arrays has been done manually with the help of water-fed pole & brush, which is quite limited due to obvious efficiency cap and labor-intensive nature.
To efficiently clean large-scale solar power stations, you need specialized cleaning systems like our automatic solar cleaning robots, making it possible for utility-scale extensive coverage.
Should I choose dry cleaning or wet cleaning?
Whether to adopt dry cleaning or wet washing, the fundamental thing is to choose the method best suited to your O&M needs in terms of solar area, installation type as well as the water availability.
Some of our models can support hybrid cleaning, thus giving your the freedom to combine the benefits of the above solar cleaning practices.
What are the advantages of dry cleaning technology for PV O&M?
Compared to wet cleaning method, dry cleaning eliminates the need for water consumption, which is particularly critical when water resources are in scarcity. In addition, no extra investment is needed for water purification systems where untreated water faces residue issues.
Dry cleaning is more practical and sustainable for centralized solar parks spanning large and complex terrains, otherwise costly expenses can be incurred because of heavy logistics of water tankers.
DOES CLEANING EQUIPMENT DAMAGE MY SOLAR PANELS OVER TIME?
Solar panels from leading module manufacturers consist of tempered glass, which is generally quite durable. Our solar cleaning solutions adopt lightweight design to ensure safe load and evenly distributed pressure, preventing physical damage to the PV panels and mounting structures alike.
Our main cleaing mechanism features sophisticatedly engineered brushing blocks equipped with high-quality bristles for zero micro-crack and scratch free solar O&M operations.
Why move away from manual to robotic solar cleaning solutions?
From an operational perspective, optimal efficiency can be easily achieved by deploying advanced PV cleaning robots, covering larger areas in a shorter time. This unmatched efficiency leads to significant cost savings compared to labour-intensive manual cleaning that eats into profits in the long run.
More importantly, robotic solar panel cleaning solutions features many new-generation innovative functions such as smart automation, high cleaning precision, comprehensive machine control and all-round safety protection, representing the future of modern solar facilities O&M practices.
For environmentally conscious practitioners in the solar maintenance fields, robotic cleaning systems only use minimal water or zero consumption, compared to traditional cleaning methods, making them a more sustainable choice, which is highly recommended as a responsible approach in arid regions.
What types of solar installlations can we handle with your products?
Our panel cleaning robots come with multiple models, customized made to adapt to all kinds of common solar sites in both commercial and utility scale forms: ground-mounted solar (Mountain, Desert and Agrivoltaic), rooftop solar & carport solar, as well as floating solar.
What is the range of sloping angle your systems can operate at?
Well, this is a very good question for adoption of solar cleaning robots. The tilting angle of solar installations are largely determined by their geographic location and supporting mounting structures.
Our versatile solar cleaning equipment can smoothly tackle the maintenance needs of both fixed-tilt type at a set inclination and tracker type with dynamic angles.
WHAT IS THE CLEANING SPEED OF THE SOLAR MACHINES?
They are variable subject to the specific model you plan to buy. Our robots are equiped with robust electrically-powered motors for incredible working mobility.
The forwarding speed of these solar cleaning robots can manually be adjusted as needed, to fit the site soiling dynamics, thus delivering the best cleaning effect at your command.
HOW MANY MWs CAN YOUR ROBOT CLEAN PER DAY?
The robotic cleaning solutions we offer for the solar stations come with varied options of brush length and power duration. So there is difference in average working efficiency for overall solar area cleaned, which can be converted into MWs for measurement, while taking into account of the cleaning speed setup and actual performance ratio of your PV panels installed under local climate condition.
How to maintain a long-lasting pristine surface for my solar modules?
The reality of solar panel cleaning status is everchanging cause the soiling accumulation doesn’t follow a single fixed pattern. The dynamic characteristics of weather condition, surrounding vegetation, and human & indudtry activities, constantly affect the dust re-accumulation rates. So it is wise to make regular inspections on the PV surfaces to provide sufficient solar cleaning.
Some of our robotic systems can integrate advanced sensing technology to identify dirty areas on solar panels. These sensors can detect the level of dirt accumulation and determine the optimal cleaning pattern for intelligent scheduling.
International Orders & Global Shipping
What is the minimum order quantity (MOQ)?
We support low MOQ of 1 unit for trial orders, excluding customized models.
What is the lead time for orders?
Standard lead time is around 15-20 days for assembly; Bulk orders are subject to production schedules of manufacturing center.
Non-standard specialized cleaning equipment and the ones involving customization are subject to specific timeline.
How can we manage the payment?
We recommend T/T for quick bank transfer upon agreement on the proforma invoice; Addtional option of partial settlement made in L/C for large-scale project procurements.
How does my package get shipped?
Maritime shipment (bulky equipment and oversized package) and airway (lightweight robots and small tools) are available for choice, at the discretion of the clients.
Note: Battery might be delivered separately in compliance with strict regulations of dangerous goods for international transport and logistics.
What preparation shall I make before placing the order?
It is highy recommended to sort out specific importation requirements at first from the client’s side, in terms of certification, packaging, and documentation, etc.
Besides, it is also critical for clients to know about the customs tariffs and HS code at the beginning, especially where tight compliance policy environment in place.
What documents are provided accompanying products shipped?
Standard documents for international business include: sales contract, commercial invoice, packing list. Other docs. are to be discussed and specified in the legally binding contract at first if incurs extra fees and risks.
How long will my package take to arrive?
The ETA is depending on transportation mode and exact destination port. When the freight is to be arranged by the supplier, for example in a CIF based contract, we will inform the client of the date of shipment and estimated time on route. So clients can properly control the importation process.
While for other cases, the client chooses to take care of their own logistic duties, when the order is concluded on EXW and FOB terms. So it is important to clarify Incoterms to be used during the quotation round.
Why is my tracking number not updating?
There will be a tracking No. for package once shipped away from China, provided by the respective freight agent. Be patient for its regular updating or require additional checking with the service provider if abnormal delay happens.
We are always here to sort it out together with our clients, feel free to contact us if such cases are found and assitance needed.
What are business days?
We are a company following the labor regulations of PRC, open to work from Monday to Friday: 9:00 AM – 6:00 PM (GMT+8). Emergency support can be ensured by working shifts upon prior notice only.
Please take into consideration the holiday seasons and peak time constraints for supplying chain and international freight, to avoid your procurement timeline trarget missed.
