The complete autonomous way of cleaning
Introducing LOTUS-A4000, a fully-autonomous and waterless solar panel cleaning robot. It's an intelligent, independent, and one of the most advanced ways of cleaning a solar plant. Each robot is dedicated to every solar row with its own solar charging-based docking station. LOTUS-A4000 is the ultimate reliable and hassle-free solution to daily clean and maintain solar plants operating in harsh and arid regions.
Upto 10% more generation output than bi-weekly cleaning
LOTUS A4000 cleaning system is based on ultra-soft microfiber cloths rotating along the length direction of the robot. The microfiber cleaning fins generate airflow and a controlled impact that flicks off the dust particles from the panels without any scratching or dragging.
Cleaning via airflow + flicking action
Durable microfiber cloth with up to 2 years of life
Easy microfiber replacement upon end-of-life
Up to 98% cleaning in a single pass
Customizable brushes for other types of dust
Our attention to detail and support from IIT Delhi has resulted in a precision-engineered machine that delivers performance while consuming less power.
We have patented our unique dual-drive system with real-time orientation control which helps to overcome the module irregularities upto 40 mm.
This aluminum and steel-made drive-unit is custom-designed to be strong and lightweight.
High-grade aluminum & stainless steel is used in parts and fasteners to achieve exceptional durability and corrosion-resistant product.
High-performance BLDC motors provide 5000+ hours of life under extreme conditions with high power to weight ratio and zero maintenance.
Our robots have a rigid open-body frame which doesn’t slack while lifting and produce minimal shading with stable operation under 50 kmph wind.
The precision engineered parts provide desired features of high strength and reliable operation while minimising the weight and power loss.
Our robots have passed multiple outdoor and indoor tests of 100 + hours of continuous-operations in IIT Delhi's facilities.
See it in action
Maintains the SAFETY and INTEGRITY of solar PV module
The wheels of the robot run on module frame to transfer the load from the frame to the underlying structure.
Microfiber cleaning fins flicks-off the dust and debris to prevent any damage to the Anti-Reflective Coating (ARC).
Appropriate hardness of the wheel coating material (TPU) provides cushion as well as durability.
In-lab simulations result in a Factor-of-Safety (FOS) value of 5.62.
All robots are equipped with automotive-grade
electronics and 4G based communication system
- ARM Cortex M4 based processor
- 4G LTE communication system
- Low current consumption
- High-endurance parts and switches
- Noise & Interference cancellation design
- Advanced firmware
- Automotive grade Q1 components
- Extended temperature operation
- Over current & voltage protection
- Lightning surge protection
- Impact-resistant enclosure (IK 07)
- RoHS and CE certified parts
- IP65 ingress protection
Longer cleaning time with lesser battery size
A single cleaning cycle of a standard 1 MWp solar plant is done under 2.5 hours!
Upto 3 hours of cleaning time with 12Ah @ 25.6V (Std. range)
Upto 4.5 hours of cleaning time with 18Ah @ 25.6V (Exd. range)
The Docking Station
The docking station at the end of the row is the resting and charging spot for the cleaning robot when it is not cleaning. It houses a self-executing charging connector that automatically latches when the robot arrives.
Full charge under 2 hours
Robust charging connector
Rooftop and ground-mount compatible
All LOTUS-A4000 robots are centrally managed and controlled via our proprietary web application. This ensures peak performance, zero downtime, and predictive maintenance of all the robots.