The concentrating collector system accounts for approximately half of the total cost of a concentrated solar power (CSP) plant. Its performance directly determines a plant’s power generation efficiency, operational performance, and economic returns.
More than a decade has passed since the launch of China’s first batch of CSP demonstration projects. As a number of commercial projects have been completed, commissioned, and continuously optimized, a group of solar field integrators has emerged as the backbone of China’s CSP industry.
Based on a comprehensive review of CSPPLAZA, covering operational as well as under-construction/planned CSP projects in China, a total of 41 projects with a combined installed capacity of 4,350 MW have been analyzed, revealing the current market landscape of solar field systems.
(Note: This analysis only includes commercial CSP projects above 40 MW with clearly identified solar field suppliers.)
Five Leading Companies
Within the scope of this analysis, there are 20 operational commercial CSP projects totaling 1,650 MW, and 21 projects under construction or in development totaling 2,700 MW, bringing the total to 41 projects and 4,350 MW.
Except for a few early demonstration projects that involved foreign technology providers, all solar field systems in these projects have been supplied by domestic companies.
Cosin Solar Technology Co.,Ltd.,
Cosin Solar Technology Co.,Ltd., has secured 15 projects with a combined capacity of 2,050 MW, accounting for 47.1% of the total capacity covered in this analysis.
- Operational: 7 projects, 600 MW
- Under construction/development: 8 projects, 1,450 MW
All of its projects adopt molten salt tower technology, utilizing domestically manufactured heliostats of 20 m², 30 m², and 37 m².
Shouhang High-Tech Energy Technology Co., Ltd.
Shouhang has secured 7 projects totaling 650 MW (14.9%).
- Operational: 4 projects, 350 MW
- Under construction/development: 3 projects, 300 MW
Lanzhou Dacheng Technology Co., Ltd.
Lanzhou Dacheng has secured 5 projects totaling 450 MW (10.3%).
- Operational: 3 projects, 250 MW
- Under construction/development: 2 projects, 200 MW
All projects adopt linear Fresnel technology.
Dongfang Boiler Group Co., Ltd. (a subsidiary of Dongfang Electric Corporation)
Dongfang Boiler has secured 5 projects totaling 460 MW (10.6%).
- Operational: 2 projects, 160 MW
- Under construction/development: 3 projects, 300 MW
Royal Tech CSP Limited
A leading domestic player in parabolic trough solar field systems, Royal Tech CSP Limited has supplied solar field systems for:
- CNNC Longteng Urad Front Banner 100 MW trough CSP project (Inner Mongolia)
- Zabuye Integrated Energy Project (40 MW trough CSP, Tibet)
It is also supplying the solar field system for the CGN Dangxiong Wumatang 50 MW CSP + PV hybrid project.
Total installed capacity served: 190 MW.
Other Active Market Participants
In addition to the five leading companies, several other important players are actively participating in the market.
Tower CSP Systems
- Shanghai Boiler Works Co., Ltd.
Its solar field integration capability originates from Shanghai Electric BrightSource Solar Energy Co., Ltd., a joint venture with BrightSource Energy, inheriting core technologies such as wireless heliostat control.
Currently involved in the 100 MW Xinjiang Huadian Tianshan North Base tower CSP project. - Shandong Electric Power Construction No.3 Engineering Co., Ltd.
Acquired eSolar technology from the U.S. and developed a fully localized tower CSP technology system.
Currently advancing the PowerChina Ruoqiang 100 MW tower CSP project. - Hengji Nengmai New Energy Technology Co., Ltd.
Has developed full-process solar field integration capabilities and delivered the Three Gorges Guazhou 100 MW CSP + storage project.
Currently working on the Xinhua Bortala 100 MW CSP project.
Parabolic Trough CSP Systems
- China Shipbuilding New Energy Co., Ltd.
Leveraging its high-end manufacturing background, it participates in CSP project EPC and development.
In the Urad Front Banner project, it acted as EPC contractor, while Longteng provided the solar field system. - China General Nuclear Power Group (CGN)
Has developed large-aperture trough collector technology (8.6 m aperture).
This technology is applied in the CGN Wumatang 50 MW CSP project, featuring a solar field area of 242,000 m² and 68 loops. - Northwest Electric Power Design Institute Co., Ltd. of China Power Engineering Consulting Group
Also active in large-aperture trough collector integration.
Its proprietary 8.6 m aperture collector is used in the CEEC Dangxiong 100 MW CSP project.
Conclusion
Overall, the companies covered in this analysis represent the core solar field integration capabilities of China’s CSP industry. Across the three major technology routes—tower, parabolic trough, and linear Fresnel—mature domestic suppliers have emerged with comprehensive engineering and delivery capabilities.
This diversified and competitive industrial ecosystem provides a strong foundation for the large-scale and multi-technology development of CSP in China.
These companies will participate in the 13th China International CSP Conference 2026, to be held on May 28–29 in Chengdu, Sichuan. Industry stakeholders are welcome to join and engage in face-to-face discussions and cooperation opportunities.
