Sustainable Cleaning
(Increase income of power generation after cleaning ≥ cleaning cost)
Fully autonomous PV cleaning robot,Sustainable Cleaning of Kwun. Surface cleanliness classification table
[Table 1]
[Table 1]

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.

Solar cleaning robot, Sustainable Cleaning of Kwun,Increase income of power generation after cleaning more than cleaning cost
Fully autonomous PV cleaning robot,Sustainable Cleaning of Kwun. All levels of labor operation cost and electricity increase.
[Table 2]
[Table 2]

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

Solar cleaning robot, Sustainable Cleaning of Kwun,Increase income of power generation after cleaning more than cleaning cost
Fully autonomous PV cleaning robot,Sustainable Cleaning of Kwun. Comprehensive situation efficiency.
[Table 3]
[Table 3]

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.

Fully autonomous PV cleaning robot,Sustainable Cleaning of Kwun. Labor Kwun group
[Table 4]
[Table 4]

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.

Solar cleaning robot, Sustainable Cleaning of Kwun,Increase income of power generation after cleaning more than cleaning cost
Fully autonomous PV cleaning robot,Sustainable Cleaning of Kwun. Process table
[Table 5]
[Table 5]

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

Solar cleaning robot, Sustainable Cleaning of Kwun,Increase income of power generation after cleaning more than cleaning cost
Fully autonomous PV cleaning robot,Sustainable Cleaning of Kwun. Kwun's SCP3 vs manual SCP4 benefit
[Table 6]
[Table 6]

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.

Solar cleaning robot, Sustainable Cleaning of Kwun,Increase income of power generation after cleaning more than cleaning cost
Trial Calculation Of Cost —— Kwun-Q

After cleaning test summary, combined with various costs involved in kwun, labor and vehicles, kwunphi launched a cleaning cost calculation platform close to the actual situation:

Kwunphi -> 【Value】-> Trial Calculation Of Cost

You can use it online or download excel files

Optimal Calculation

Relying on the [kwunq] Cleaning cost calculation, kwunphi further developed the optimal most cost saving to simply and conveniently obtain the lowest cost cleaning group:

Kwunphi -> 【Value】-> Optimal Calculation