Solar panel cleaning

Mumbai-based Cleo Tech has developed a battery-powered, handheld tool for scratch-free, dry cleaning of solar panels. The tool’s cleaning brush clings end-to-end on the aluminum frames of the panels, avoiding direct contact of the moving parts with the cells, other than the soft nylon bristles.

Swiss Clean Battery is set to start commercial production of its pure solid state batteries in Switzerland. The batteries are based on a protected electrolyte made of a solid ion conductor, which helps to maintain internal resistance and capacity. The fixed ion conductor is formed in the battery cell itself, similar to a multi-component adhesive.

Tamil Nadu based Next Automation has come up with a tractor-mounted hydraulically operated arm as a fast, accurate, cost-effective, and water-efficient cleaning solution for panels in solar farms.

The Israeli robotic cleaning specialist will deploy its E4, T4 as well as the latest H4 products for the Indian developer’s 400 MW solar project that combines fixed-tilt and single-axis trackers.

India’s Aegeus Technologies has developed an autonomous, water-free cleaning bot for rooftop solar installations. The bot weighs 5 kg (with battery) and can be operated remotely through a web-based app. It uses an air wash technology to clean the panels, ensuring no need for water or any harmful chemicals.

British scientists have reported significant restoration of the panel performance with the experimental compressed air system developed by them for the simultaneous cleaning and cooling of PV modules. The system was built with a compressed-air unit which was made of a compressor, an air tank, and an airflow regulation valve, and a series of nozzles. The technique was tested on a PV system located in northwestern India.

A group of scientists in Bangladesh has developed a model to determine the optimal cleaning schedule for a PV installation at any location in the globe, requiring only the average insolation and soiling rate for a given site to make the calculation. The study also draws new conclusions regarding the influence of sandstorms and rain on soiling, and aims to be among the first studies to paint a global picture of soiling trends by region.

Simarpreet Singh, director at EPC firm Hartek Group, speaks to pv magazine about the impact of the Covid pandemic on the rooftop solar sector, technology trends shaping the market, and the outlook for 2021.

The Israeli developer of module cleaning robots has bagged an order from Indian solar developer Azure Power to deploy its water-free cleaning solution across a 450 MW solar project in Rajasthan.

The Coimbatore-based startup has designed an autonomous solar panel cleaning bot with a modular design, making it compatible with almost any structure, mounting area, or climatic condition.