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    iSolar: Innovative Cleaning Solutions for Solar Panels

    Photovoltaic (PV) and solar thermal modules harness solar radiation to generate clean energy. However, debris from dust, soot, and pollen can reduce their output by up to 20%, drastically lowering their efficiency. Rain, condensation, and wind are simply not strong enough to clean these systems effectively. To maintain peak performance and ensure a consistently high level of power production, regular and thorough professional cleaning is required.

    A worker cleans solar panels using iSolar.

    Effective Solar Panel Cleaning

    Large solar panel arrays cannot be easily cleaned with just water and a sponge. Doing so can also be highly dangerous, as modules are typically roof-mounted at steep angles of 30° to 45°. Kärcher’s iSolar line solves this problem with an innovative commercial pressure washer accessory system.

    The modular design of the iSolar system allows operators to safely and efficiently clean photovoltaic systems of any size. Rotating disc brushes are connected to telescopic wands and powered by water pressure from the pressure washer, making hard-to-reach areas easy to clean.

    Because dirt and grime buildup reduces power output and lowers electricity production, investing in iSolar pays for itself in no time.

    Wherever solar panel systems are installed—whether in agriculture, commercial businesses, industrial facilities, or residential homes—iSolar ensures maximum energy efficiency. It can be used virtually anywhere, which is especially valuable in areas prone to heavy dirt and debris. Kärcher iSolar is the most economical choice for both solar system operators and professional cleaning service providers.

    A worker cleans photovoltaic roofs with iSolar 800.

    Features & Benefits of Kärcher iSolar

    • Safe & Efficient: Safely cleans solar and photovoltaic systems of any size.
    • Built to Last: Rotating brushes feature robust ball bearings for maximum service life.
    • Modular Design: Easily customize your setup to match specific job requirements.
    • Articulated Joint: Provides comfortable, flexible handling at any working angle.
    • Broad Compatibility: Adapts seamlessly to numerous Kärcher pressure washers.
    • Gentle Cleaning: Operates at low pressure to protect delicate solar panels.
    • Extended Reach: Telescopic wands reach up to 46 ft. (14 m) for high-clearance jobs.
    • Versatile Use: Guide brushes safely from the roof or an aerial lift.
    • Flow Control Handle: Ergonomic handle with an integrated ball valve ensures comfortable operation.

    iSolar Components & Accessories

    The iSolar accessory system can be used for a variety of roofs and module types. For roofs that are easily accessible, cleaning from the roof is recommended in conjunction with the use of fall protection equipment. For roofs that are difficult to access, cleaning should be carried out from a more secure position, for example a stable and secure lifting platform. Disc brushes and telescopic wands are available in different sizes and lengths to meet the unique cleaning needs of the cleaning situation.

    Brush Heads: iSolar 400 and iSolar 800

    The iSolar brushes are powered by the water stream from the pressure washer, which also helps to remove the dirt. However, the cleaning effect itself is achieved by the mechanical action of the bristles. The bristles are made of nylon, ensuring scratch-free modular surface cleaning. The iSolar 400 and iSolar 800 are operated at low pressure, eliminating any danger of the modules being damaged. To provide an exceptionally long service life, the rotating brushes are fitted with robust ball bearings.

    Product photo of iSolar 400.

    iSolar 400

    • Compact entry-level model for smaller areas
    • Particularly suitable for elevated systems
    • Water-powered disc brush with ball bearing
    • Connection M 18x1.5; compatible with standard HD/HDS machines
    • Pre-rinsing of adjacent modules
    Product photo of iSolar 800.

    iSolar 800

    • Excellent cleaning performance and area coverage
    • Optimal handling with balancing of transverse forces
    • Counter-rotating disc brushes with ball bearing
    • Robust brass articulated joint for flexible working angle
    • Connection M 18x1.5; compatible with standard HD/HDS machines
    • Pre-rinsing of adjacent modules
    Go to iSolar 400 (1.8–2.6 GPM)
    Go to iSolar 400 (2.9–3.4 GPM)
    Go to iSolar 800 (1.8–2.6 GPM)
    Go to iSolar 800 (2.9–3.4 GPM)

    iSolar Telescopic Wands

    These adjustable telescopic wands provide easier access for cleaning photovoltaic and solar panel roofs that might otherwise be unreachable.

    Product photo of iSolar telescopic wands.

    Features:

    • Lightweight and easy to guide
    • Working range of up to 45 ft.
    • Ergonomically shaped handle with integrated ball tap
    • Secure connection and maximum comfort
    • Easy deployment thanks to quick-release fasteners and internal high-pressure hose
    • Offered in different lengths
    Go to iSolar TL 7 H
    Go to iSolar TL 10 C
    Go to iSolar TL 14 C

    iSolar Safety System

    Working at heights demands uncompromising fall protection. The iSolar Safety System provides a certified, specialized safety kit designed to mitigate risk and ensure regulatory compliance during rooftop solar panel maintenance without sacrificing cleaning efficiency.

    Product image of the iSolar safety system.

    Rooftop safety is ensured thanks to:

    • Safety harness with quick-release fasteners
    • Guided fall arrester with integrated shock absorber and lengthy guide rope
    • Stop band for fastening
    • Certified, standard-compliant safety system
    • Rugged metal box for storage and transport
    Go to Safety System

    iSolar Detergent

    RM 99 Solar Cleaner is specially formulated for cleaning the unique surfaces of photovoltaic and solar panels. It is highly effective in the removal of most stubborn dirt and can even tackle stubborn and greasy stains. It also prevents the formation of limescale, and maximizes the effectiveness of the system at minimum cost.

    Product photo of RM 99 Solar Cleaner

    RM 99 Solar Cleaner: Effective and Gentle

    • Maximize efficiency by removing dirt and soil that can reduce power output of solar panels
    • Highly concentrated: 5 quarts makes 5 gallons of concentrate that can then be metered at a rate of 1:100 to 1:200 (a little goes a long way)
    • Gentle on materials: will not damage solar and photovoltaic modules, glass or plastic coatings
    • Low residue, streak free drying
    • Reduced resoiling for easier next time cleaning
    • Effective in preventing lime residues regardless of water hardness
    • Environmentally friendly, phosphate-free
    Go to RM 99 Solar Cleaner
    Cover image of the Karcher iSolar brochure.

    iSolar Brochure

    Download our free brochure for a full list of iSolar products and benefits.

    Download

    Advice, Sales and Service

    You can find iSolar and all of your other photovoltaic and solar panel cleaning products at your local Kärcher dealer. Stop by or call your nearest distributor today to speak with a local expert.

    Find a Dealer