We work alongside your maintenance contractor

An O&M contractor runs the whole plant: inverters, trackers, vegetation, security and reporting. In most renewable energy maintenance contracts, cleaning is one line in a long scope. A scope that counts washes, rather than the energy they recover, can’t tell a good clean from a wasted one.

Soiling is also its own specialism: contaminant chemistry, water hardness, module makers’ cleaning conditions, coatings and soiling measurement. We bring that specialism into the contract your contractor already runs.

We start from the machines and water already on site, and change them only where the numbers say so.

For O&M contractors. If your crews only need the products, order just the products, with the technical and safety data sheets for your HSE file. No service contract is needed. See the range.

For a problem site, or a whole portfolio, call us in alongside your team. Pilots are free on utility-scale and large C&I plants, so you can show the owner measured results before anything in the contract changes. Book a free pilot.

1. Measure. A soiling assessment and, where it pays, soiling sensors, with the data shared with your O&M team.
2. Design. Method, interval or trigger, water treatment, equipment and products, written up as your cleaning strategy.
3. Write the method statement. One per task, in a form that fits your contractor’s HSE system.
4. Train the crews. On site: dilution, application, brushing, rinsing and dosing, and what the module maker does not allow.
5. Supply. As the official Southern African distributor of Chemitek, we supply its products with safety data sheets and technical datasheets for the HSE file.
6. Verify. Results against control strings or soiling data, and a calendar adjusted with your team as the seasons change.

• the contaminant and the product for it, with dilution and application rate;
• the equipment and brush type, and the water source and treatment;
• the module maker’s cleaning conditions: water limits, pressure and temperature;
• sequence and timing, PPE and the safety data sheet;
• run-off and environmental conditions;
• checks and sign-off;
• timing: the crew’s calendar has to be able to move.

These Chemitek case studies were run by each plant’s own O&M team, on the equipment it already used:

• Vietnam, 330 MW. The O&M team mixed D-Solar Defendor into its cleaning robot’s water, and crews cleaned faster with softer brushes. See the case.
• Honduras. After a one-month test on three strings, Scatec’s O&M team moved all its cleaning to Solar Wash Protect (Case study: Chemitek (Portugal), with Scatec). See the case.
• Malaysia, 850 kWp. The TNBES team found the soiling came off faster with Solar Wash Protect and used much less water, and it switched all its cleaning to the product (Case study: Chemitek (Portugal), with TNBES). See the case.
• India, commercial rooftop. Soleden Power’s O&M team, which cleans the roof by hand, compared a Solar Wash Protect string with a water-cleaned string for a month, then moved all its cleaning operations to the product (Case study: Chemitek (Portugal), with Soleden Power). See the case.

We work the same way: your team keeps the site and the equipment, and we add the measurement, the method and the chemistry.