Portuguese startup Solarud has unveiled a water-draining device that can be clipped to solar modules, in order to resolve dust and soiling issues.
“The piece is usable on panels that have frame heights of 40 mm, 35 mm or 30 mm, and thickness between 8 mm and 11 mm. It is suited for modules with slopes between 3 degrees and 20 degrees,” the company’s co-founder, António Peres, told pv magazine.
The device was designed with rooftop installations in mind, where difficult accessibility and height-related risks make soiling an even greater concern for operations and maintenance contractors. While the device cannot replace cleaning, which remains essential, “the goal is to improve the energy production between cleaning cycles by preventing the soiling impact,” Peres said.
The company claims energy gains of 3.5% on average, with better performance being achieved with solar panels in portrait position, when soiling at the bottom of the module affects all its three substrings.
In a case study, the company showed the gains between two equal strings in the same installation – one installed with Solarud and one without.
“The modules were all cleaned on week zero and we then compared the performance of the strings on week 13,” Peres said.
The company developed and produces the device in Portugal. It is available for bulk purchases, starting at 50 units for $150 (€100), or $3 (€2) per unit. Each piece weighs six grams and is made of UV-resistant recyclable plastic for longer durability.
The company is focused on the European market but distributes globally. Its main clients are investors and project owners seeking fast returns on investment, as well as O&M companies looking to provide better performance alongside their cleaning services.
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.
By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.
Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.
You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.
Further information on data privacy can be found in our Data Protection Policy.