R. Dr. Francisco Sá Carneiro
Zona Industrial de Bouro - Letra C
4740-010 Esposende, Portugal
Solar Wash Protect RTU
2 in 1 biodegradable solution: cleans organic soiling and protects the solar panels
Did you know that failure to clean your solar panels can lead to irreversible damage and costly repairs?
Solar Wash Protect RTU is a ready-to-use, biodegradable solution developed to keep the solar panels clean while protecting them from future dirt buildup. Its unique 2-in-1 formula not only removes organic dirt effectively but also leaves an antistatic, antiadherent coating that reduces soiling between cleanings. This means easier maintenance, less cleaning effort, reduced water consumption by up to 50%, and increased energy performance.
Using the SWP solution to wash the solar modules instead of just water allows for an increase in efficiency of up to 5% of the solar panel, resulting in significant economic benefits for the PV system owner.
PV solar panel on a residential home
Residential solar panel installation
Cleaning solar panel on residential installation with SWP RTU
Before applying SWP RTU to soiled modules
Before and after with SWP RTU on solar panels on residential installation
Key Benefits
- Cleans a wide range of organic dirt: Dust, bird droppings, pollen, tree sap, bees’ wax, grease, and carbon deposits.
- Protects panels: Antistatic coating reduces adhesion of dirt, making future cleanings faster and easier.
- Improves performance: Using SWP RTU instead of water-only cleaning can increase panel performance by up to 5%.
- Saves time and water: Less brushing and rinsing needed.
- Safe and environmentally friendly: Biodegradable, pH-neutral, and compatible with all solar panel types (photovoltaic and thermal).
- Simple application: Ready-to-use formula—no dilution needed. Spray directly onto panels, brush lightly, and rinse with soft water.
How It Works
SWP RTU uses advanced cleaning technology to break down organic soiling. After rinsing, the solution leaves a protective, non-stick coating that minimizes dirt accumulation. This helps panels stay cleaner for longer and keeps performance stable between cleanings, while future maintenance becomes faster and uses less water.
Applications
- Residential, commercial, and industrial PV installations
- Floating PV systems
- Manual or robotic cleaning methods
- Solar panel cleaning companies and in-house O&M teams
Available Formats
- 2 kg drum
- 5kg drum
FAQs
The surface of photovoltaic solar panels must be clean to ensure full operation and maximum performance. Any kind of soiling that may be on the surface of the solar module, be it dust, pollen, tree sap, bird droppings, sand, salt crystals, etc., will reduce the light transmission, i.e. reduce the amount of sunlight reaching the solar module cells, and thus the panel will produce less energy.
To the naked eye the panels may appear clean, however there will be soiling accumulated, even if it is just the air pollution itself. A simple test to see if your panel is in need of cleaning is to wipe the surface of the panel with a white cloth or cotton pad before the actual cleaning.
According to recent studies, when a solar panel is very dirty it can lose up to 50% of its efficiency compared to a clean solar panel. However, the Worldwide average energy loss due to soiling is 3 to 5%.
In fact, rain or wind will not keep the panels clean. Wind will carry particles that will settle on the panel and rainwater is not enough to remove any incrusted soiling such as bird droppings or pollen. Rainwater can even lead to the appearance of hotspots by accumulating the soiling on the bottom frame of the panels.
For the warranty on your solar panel to remain valid, you should use solar panel cleaners that meet the manufacturers' guidelines and are certified for solar panels, such as Solar Wash Protect.
This means that the products need to be pH neutral, biodegradable and environmentally friendly and have been tested by international laboratories, such as the TÜV Sud.
This solution is ready-to-use. No dilution in water is required to apply the product to the solar panel.
For more information, see the Technical Sheet or contact us.
The SWP antistatic cleaning and protection solution effectively removes organic soiling, such as bird droppings, dust, ash, pollen, salt, bees’ wax, tree sap, grease and carbon deposits.
ChemiTek recommends using between 150mL and 200mL per m² of photovoltaic panel. For example, if you have a PV panel with a surface area of 2 m², the quantity will 300mL to 400mL.
In case of doubt check the Technical Datasheet or contact us.
Solar Wash Protect as a cleaning product, in addition to efficiently removing different types of dirt, does not allow dirt to adhere as easily to the surface of the solar panel, due to its antistatic and antiadherent properties. Therefore, it slows down the decrease in the solar panel's power generation between cleanings. Since the soiling does not stick so easily to the surface of the panel, in subsequent cleanings you will notice an easier and faster cleaning.
