Project Overview
The Shenzhen Mawan Power Plant Hydrogen Production and Refueling Integrated Station (EPC Turnkey Project) is a benchmark project delivered under the concept of "energy coupling and circular utilization," pioneering an innovative model of integrating large-scale green hydrogen production and refueling within the premises of a major thermal power plant. Leveraging the land, electrical power, and industrial infrastructure advantages of the Mawan plant's campus, this project employs Alkaline Water Electrolysis technology to embed green hydrogen production directly into a traditional energy base, achieving efficient "power-to-hydrogen" conversion and local consumption. The station not only provides a stable hydrogen supply for Shenzhen's hydrogen fuel cell heavy-duty trucks, port machinery, and public transport but also explores a feasible pathway for traditional power plants to transform into integrated clean energy hubs. It demonstrates our company's outstanding capability to provide full-industry-chain EPC hydrogen solutions in complex industrial settings.

 

Core Systems & Technical Features

 

1. Large-Scale Hydrogen Production Synergized with Power Plant Systems
   The core on-site production system utilizes a parallel configuration of multiple large-scale alkaline electrolyzers, with a total design hydrogen production capacity at the standard cubic meter per hour level. It innovatively incorporates a flexible interconnection and intelligent dispatch interface with the plant's power grid, allowing adaptation to the plant's surplus electricity or scheduled green power. This enables real-time optimization of hydrogen production load, significantly increasing the proportion of green power consumption and improving production economics. Integrated with efficient purification and drying modules, the system ensures stable hydrogen purity exceeding 99.99%, meeting the highest quality standards for vehicle fuel cells.
2. Integrated Design for High-Reliability Storage, Transfer & Refueling
   • Hydrogen Storage & Boosting: Adopts a combined "medium-pressure storage + liquid-driven compression" scheme, including 45MPa hydrogen storage vessel banks and liquid-driven hydrogen compressors, ensuring smooth operation and low maintenance requirements.
   • Refueling System: Equipped with dual-pressure level (70MPa/35MPa) hydrogen dispensers compatible with both heavy trucks and passenger vehicles. It integrates instant cooling capacity compensation and high-precision mass flow metering technology, achieving internationally advanced levels in both refueling speed and accuracy.
   • Intelligent Dispatch: The on-site Energy Management System (EMS) exchanges data with the power plant's DCS system to achieve coordinated optimization of hydrogen production, storage, refueling, and plant power load.
3. Industrial-Grade Station-Wide Safety & Risk Control System
   To meet the high safety standards within the power plant campus, a comprehensive station safety system based on inherent safety and defense-in-depth principles was constructed. This includes explosion-proof zoning management for the production area, real-time monitoring of hydrogen transmission pipelines, double-layer protection and water curtain systems for the storage area, and a station-wide unified Safety Instrumented System (SIS) and Emergency Shutdown (ESD) system meeting SIL2 standards. Key areas are equipped with flame, gas, and video analytics alarms, ensuring absolute safety within the complex industrial environment.
4. Complex System Integration & Engineering Management under EPC Turnkey Model
   As a new construction project within an operating power plant, EPC execution faced challenges such as space constraints, construction without production stoppage, and numerous cross-system interfaces. We provided full-cycle services from master planning, safety risk assessment, detailed design, equipment integration, strict construction management, to integrated commissioning. We successfully achieved seamless integration and safe isolation between the new hydrogen facilities and the plant's existing electrical, water, gas, and control systems. The project passed multiple stringent acceptance procedures for fire safety, special equipment, and hydrogen quality in a single attempt.

 

Project Value & Industry Leadership Role
The completion of the Mawan Power Plant Integrated Station is not only a key milestone in the hydrogen infrastructure layout of Shenzhen and the Greater Bay Area but also holds profound  significance for the industry. It validates the new "on-site hydrogen production" model of embedding green hydrogen production within traditional energy bases, providing a replicable and scalable systematic EPC solution for the low-carbon upgrade of existing power plants and large industrial parks nationwide. This project highlights our comprehensive strength in delivering high-standard hydrogen projects under complex constraints, bridging different energy sectors, and integrating diverse resources. It marks a new phase in our company's efforts to promote energy system integration and green transformation.