Cleaning quality determines the income from electricity upgrading and is the core of photovoltaic cleaning price mechanism.

Kwunphi uses the ISO 14644-9 "Surface cleanliness by particle concentration" classification criteria to define the quality of photovoltaic cleaning.

Manual cleaning is corresponding to different costs which according to the clean quality standard [ISO 14644-9]

(The actual tracking research results in Guangdong Province from September 2021.09 to September 2022.09)

Power Generation Comparison -- Real Case

In order to more accurately calculate the cleaning cost of the photovoltaic cleaning robot, Kwunphi Company included the following two key parameters in the cost calculation:

①Situation Efficiency 1: In the process of work, people stop, lift, turn around, change batteries, etc., resulting in efficiency loss; Situation Efficiency 1 is the ratio of actual efficiency to nominal efficiency;

②Situation Efficiency 2: The net working time of 8 hours per day, the actual working time is lost due to travel, work preparation and other reasons; Expressed as the actual working time which minus this efficiency loss divided by eight hours;

Combine the two to obtain the comprehensive efficiency of photovoltaic cleaning robot kwun in different situations, that is, the comprehensive situation efficiency.

Power station structure fragmentation, need human intervention can ensure the quality of cleaning,

Kwunphi sums up the different cleaning situations to find the most reasonable Kwun&Labor matching combination, after 1.3 GW cleaning tracking by Kwunphi’s professional cleaning team.

Different pollutants need to take different cleaning processes, Kwun can realize SCP3 level of cleanliness in most cases.

Kwun’s SCP level 3 vs manual cleaning’s SCP 4 is confirmed:

Kwun’s cleaning is the only way of " Sustainable cleaning" that increase income of power generation after cleaning ≥ cleaning cost.