Case studies

Real plants. Measured results.

Four plants across Asia. Same robot, real site data.

Fengkai, Zhaoqing · Guangdong

Runxin New Materials

Sand processing coats this roof in mineral dust within days.

  • 7,109 kW on 34,755 m²
  • Robot string vs. two uncleaned control strings
  • Daily inverter data logged from Jan 2025
7.1 MWCapacity
34,755 m²Panel area
DailyCleaning
Zhaoqing data · sunny February 2025 days

The cleaned string beat both uncleaned strings.

9 Feb+9%
Robot-cleaned
0
Uncleaned avg
0
12 Feb+13%
Robot-cleaned
0
Uncleaned avg
0
Robot-cleaned stringUncleaned strings (average)

kWh per day. Same site, same day, same weather. Source: plant inverter logs.

ZHAOQING · ROOF ARRAY
ZHAOQING · ROBOT RAILS
ZHAOQING · ON SITE
Zhenkang, Lincang · Yunnan

Zhenkang Cement Plant

Kiln dust bakes onto the glass. Washing by hand on a mountain was slow and costly.

  • 4,457 kW on 21,127 m²
  • Mountain-region site
  • Before/after yield tracked by month
4.5 MWCapacity
21,127 m²Panel area
CementDust type
YUNNAN · CEMENT PLANT
YUNNAN · PLANT ROOF
YUNNAN · ON SITE
Manas mountain array
Manas · Xinjiang

400 MW on broken ground

Nearly 100 different tilt angles across one plant. We mapped the terrain and built three custom bridge designs so one drive still serves many rows.

  • 400 MW PV + 400 MWh storage project
  • 3 bridge types for uneven terrain
  • Parts re-engineered and strength-simulated for the site
400 MWPlant size
~100Tilt angles
3Custom bridges
MANAS · WINTER
MANAS · ROW BRIDGE
MANAS · SLOPE
Robot on Yaxin Steel coke-plant roof
Lianyungang · Jiangsu

Yaxin Steel: port and coke plant

Two of the dirtiest roofs in industry — a dockside yard with blowing gravel and a coking plant with constant soot. Same robot, both sites.

  • Dockside array beside ship cranes
  • Coke-plant roof with heavy soot fallout
  • Before/after cleaning compared on site
YAXIN · PORT YARD
YAXIN · DOCK ROOF
YAXIN · COKE PLANT
Robot rail on the Irradiance Solar array, Saraburi
Saraburi · Thailand

Irradiance Solar ground array

Installed in August 2025 on a hillside ground array in Kaeng Khoi. One robot-cleaned string was logged against a matched string with no robot, every day.

  • Commissioned on site in August 2025
  • Daily robot vs. control string data, Aug–Dec 2025
  • Gain grew as the dry season set in
+4.9%5-month energy gain
+11.3%December gain
2,516Extra kWh, one string
Thailand data · August to December 2025

The longer the dry season, the bigger the gain.

Aug
+1.3%
Sep
+2.3%
Oct
+4.2%
Nov
+4.5%
Dec
+11.3%
Robot-cleaned stringMatched string, no robot

Monthly kWh per string. Source: site inverter logs, Irradiance Solar.

SARABURI · SITE
SARABURI · COMMISSIONING
SARABURI · CONTROL BOX
Taiwan

Kyohaya Technology ground plant

A large ground-mounted array in Shanshang District, with a robot on every row, filmed from the air.

  • Ground-mounted fixed-tilt rows
  • Cable rails fitted along every row
  • Supported by our Taipei branch office
TAIWAN · SITE OVERVIEW
TAIWAN · ROBOT ROWS
More sites

More sites we keep clean.

GRASSLAND · GROUND

Bird-heavy site

Droppings cleared before hot spots form.

SHANDONG · ROOFTOP

Grain storage base

Long warehouse roofs, chaff and dust.

NORTH CHINA · WINTER

Snow on the rail

Robot parked and ready after snowfall.

GOBI · GROUND

One drive, many rows

1:N layout on sinking desert ground.

Reference projects

Selected reference projects.

Ground2021

Heilongjiang geothermal-solar

66MW
646robots
Water2021

Dongguan fishery-solar

40MW
403robots
Water2021

Jiangmen fishery-solar

30MW
295robots
Rooftop2018

Taicang logistics park

21MW
247robots
Ground2021

Shandong complementary PV

11MW
156robots
Rooftop2021

Yingkou glass plant

30MW
122robots
Mountain2022

Shaoguan Renhua

14MW
100robots
Desert2021

Alxa, Inner Mongolia

7MW
69robots
Snow2018

Jilin Liaoyuan

4MW
Snowclearing

78 projects in the full list. Available on request.

Want results like these on your plant?

Ask for the full 78-project list or a reference call with an owner.