【Prefabricated Modular Construction】Achievements of Jiujiang Xingfu Substation Project and Integrated Wall Panel Solutions

     In the wave of transformation in power engineering construction towards modularization, mechanization, greenization, and intelligentization, Jiangxi Yuanyang Weili  Industrial Co., Ltd., as a national-level specialized, sophisticated, distinctive, and novel "little giant" enterprise and a national high-tech enterprise, has core advantages in the field of prefabricated substations with enclosure systems, auxiliary rooms, and modular components. It has formed a complete service capability from R&D and design to production and installation, and is an important partner in the construction of prefabricated substations within the State Grid system. With the Jiujiang Xingfu 220kV prefabricated substation project as a model, it provides an efficient, high-quality, and replicable prefabricated construction solution for the power industry.

Jiujiang Xingfu 220kV Substation

       The Jiujiang Xingfu 220kV Power Transmission and Transformation Project is a key new construction project in the Jiujiang Power Grid Development Plan (2022-2027). It is led by the Jiujiang Power Supply Branch of State Grid Jiangxi Electric Power Co., Ltd. The project aims to meet the demand for load growth in Chaisang District and surrounding areas, optimize the regional power grid structure, and improve the reliability and stability of power supply. With a total investment of 156.58 million yuan, the project is located at the southeast corner of the intersection of Gangxing Road and Baihua Road in the West Port Area of Jiujiang. The post-approval announcement of the planning and design scheme was completed in October 2024, and the engineering construction permit was obtained on October 22 of the same year. On December 31, 2025, an announcement related to the completion of the project was released, marking that the project has entered the final stage of commissioning. 

         Jiujiang Xingfu Substation was installed using modular design, factory production, and on-site hoisting and assembly. The installation of the front and rear walls of the three buildings on site took only 50 hours to complete. It truly conforms to the direction of modularization, mechanization, greenization, and intelligentization of the State Grid. At the same time, the project has also won the State Grid National Excellent Project due to the innovative application of integrated wall panels and the joint efforts of all links.

Project Name: Jiujiang Happiness Prefabricated Substation
Core Products: Steel Structure + Integrated Wall Panels
Project Period: Commenced in April 2025 - Completed on July 15, 2025 (Total construction period: 3 months)
Application Scenario: Prefabricated substation construction (industrial building field)
Project Achievements

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Core Strengths: The Four Core Advantages Supporting Prefabricated Substation Engineering Projects

(1) Technical Advantages: Dual Drive of 3D Design and Innovative Products
       Yuanyang Weili's technical advantages have been fully demonstrated in the Jiujiang Xingfu Project: Using mainstream 3D design software such as Tekla, Revit, and BIM Base, the core team that won the first prize in the National BIM Competition created a full-professional BIM model, achieving a 1:1 accurate connection between design data and the production process, and solving complex node design problems. The third-generation substation unit-type auxiliary building, jointly developed by the company with Jiangxi Electric Power Design Institute and State Grid, integrates multiple functions, with excellent Class A fire resistance, thermal insulation, sound insulation and noise reduction performance, a service life of more than 30 years, and an overall cost 15-20% lower than that of traditional buildings; the prefabricated series products have Class A1 fire resistance, with a fire resistance duration of 240 minutes, perfectly meeting the stringent requirements of 110kV-500kV substations.

(2) Full-chain controllability: Integrated service capabilities from design to operation and maintenance
       Relying on its own professional design team, complete set of production and processing equipment, and integrated construction team, Yuanyang Weili has achieved independent control over the entire process from scheme design, detailed design, factory production to on-site installation and operation and maintenance services. The design link features rapid response and efficient modification; the production link adopts automated and process-based management and control, with the precision of steel structures and integrated wall panels reaching the industry-leading level; the construction link mainly relies on mechanical hoisting, reducing on-site wet work, and balancing efficiency and environmental protection. This whole industry chain model was successfully implemented in the Jiujiang Xingfu Project, ensuring the accurate implementation of design intentions and seamless connection in the construction process.

(3) Quality Assurance: Double Endorsement from Authoritative Certifications and Strict Standards
        As a national high-tech enterprise, Yuanyang Weili has obtained ISO9001/ISO14001/ISO45001 certifications, as well as steel structure construction qualification and the three-star acceptance qualification for green building materials. In the Jiujiang Xingfu Project, these quality assurance systems have been translated into visible project quality, winning high recognition from the State Grid system.

(4) Experience accumulation: Industry reputation verified by multiple projects

       In addition to Jiujiang Xingfu Substation, Yuanyang Weili has completed multiple power projects across the country, including Fujian Zhangzhou Xichan 110kV Substation, Jiangxi Nanchang 500kV Substation, Zhejiang Suixi 220kV Substation, covering various voltage levels from 110kV to 500kV. From urban core areas to remote mountainous regions, from conventional substations to complex-shaped projects, the company can deliver efficiently and has accumulated rich experience in scenario-based solutions.

Promotion and Application Value of  Yuanyang Weili Substation Project

(1) Efficiency Value: Accelerate Project Commissioning and Release Benefits in Advance
Through the mode of factory prefabrication + on-site rapid hoisting, the bottleneck of the traditional construction period is broken, helping the substation to be put into operation in advance to generate economic benefits, which is especially suitable for projects in urban core areas with high requirements on the construction cycle and projects in remote areas with complex construction conditions.

(2) Quality Value: Standardization of the Whole Process to Lay a Solid Foundation for Safety
The whole industry chain independent and controllable mode combined with standardized production and construction ensures stable and reliable project quality. From structural safety to functional adaptation, it comprehensively meets the strict requirements for the long-term operation of the substation, and demonstrates the brand strength with zero complaint records.

(3) Green Value: Practice the Dual Carbon Goals and Reduce Environmental Impact
Reduce on-site wet work and construction waste, promote integrated products with thermal insulation and energy-saving properties, reduce energy consumption throughout the project's life cycle, and provide a practical and feasible implementation path for the green and low-carbon development of the power industry.

(4) Demonstration Value: Replicable and Promotable to Lead Industry Transformation
The successful experience of the Jiujiang Xingfu Project has formed a standardized solution, which can be directly applied to various substation new construction and renovation projects, providing a complete reference sample of "design - production - installation - operation and maintenance" for prefabricated construction in the power industry.

Win-win Cooperation: Multi-dimensional Cooperation Modes Adapt to Diverse Needs.

  Yuanyang Weili provides flexible and diverse cooperation modes according to the characteristics of the power industry: 
- Overall solution cooperation: covering integrated services of design + production + installation, with full-process control over project quality and progress; 
- Core component supply: providing core products such as auxiliary rooms, enclosure panels, and modular components to adapt to existing construction systems; 
- Joint technology research and development: customizing and developing products for special scenarios and jointly solving technical problems in the industry. 

       From the efficient completion of Jiujiang Xingfu Substation to the successful delivery of multiple power projects, from national qualification certifications to participation in the formulation of industry standards, Yuanyang Weili, with technological innovation as its core, full-chain services as its wings, and benchmark projects as evidence, has become the preferred partner for prefabricated substation construction within the State Grid system. In the future, the company will continue to deepen its presence in the prefabricated building field, expand application scenarios such as new energy power stations and energy storage stations, join hands with more power enterprises, jointly promote high-quality development of the industry, and contribute to building a more reliable, efficient, and green modern power system!