As the sun slowly sinks below the horizon, workers at the Guangyin Aluminum Processing Plant in Changfeng, Anhui, finish their day’s labor, while six Mars photovoltaic cleaning robots quietly come to life on the rooftop. Without any human intervention, they can clean 50,000 square meters of modules every night. This is not a scene from science fiction, but the daily operation of Renjie’s L5-level fully autonomous robots.

To better understand and evaluate the intelligence level of photovoltaic cleaning robots, Renjie has redefined PV cleaning through autonomous driving logic, establishing L1–L5 intelligence levels for cleaning robots. The core differences lie in “degree of human reliance” and “closed-loop scenario capability.” True Autonomy: From “Single-Unit Automation” to “System-Level Closed Loop”

Shadowless Commander: An unmanned cleaning robot system that achieves 100% full-coverage autonomous route planning

Boundless Cleaner: Multi-sensor fusion technology enables normal operation even at night or in harsh weather conditions

Sleepless Guardian: Automatically returns to wireless charging docks after task completion, with breakpoint resume capability, achieving 7×24-hour standby with no human intervention

True Safety: Only 0.69% Module Degradation Over 35 Years with 12,000 Cleaning Cycles

Automotive-Grade Design: Modular all-aluminum body, reinforced rubber tracks, and automotive-grade lithium iron phosphate battery cells

Active Safety Strategy: Equipped with high-precision ranging sensors, providing 360° active anti-fall protection at module edges for safer edge cleaning

4-Hour Ultra-Long Endurance: Supports high-frequency daily cleaning, with cleaning speed twice the industry average

Real Returns: Proven Power Generation Improvement

Field test data from a 2.7 MW rooftop power station in Tangshan shows that after deploying Mars robots, zero manual labor was required on-site, and power generation increased by over 19% after three months of cleaning, with cleaning efficiency reaching 99.5%

The manager of a distributed power station in Yangzhou stated that compared with manual cleaning, robot cleaning is more stable and enables uninterrupted all-weather operation, representing the future direction of intelligent operation and maintenance

While the industry is still discussing the boundaries of “automation,” Renjie has already delivered the answer through its L5-level unmanned robots: true intelligence means achieving complete “7×24-hour unmanned closed-loop operation and maintenance.”