Hexon Energy Donghai 50MW/100MWh Energy Storage Power Station

Project Highlights

• Scale & Layout: Covers an area of approximately 28,667 square meters (43 mu) with an installed capacity of 50MW/100MWh, serving as a key power grid regulation resource in Northern Jiangsu.

• Reliable Equipment: Adopts Hexon Energy’s full-set energy storage system solution, integrating high-energy-density batteries, modular power units, and an intelligent management system.

• Efficient Deployment: Completed the entire process from equipment delivery to grid connection and commissioning in only 4 months, demonstrating rapid response and delivery capabilities.

• Stable Operation: Has maintained a system availability rate of over 99% since commissioning, effectively supporting the regional power grid’s peak-shaving needs.

Core Values

High Energy Density & Modular Design

Utilizes 314Ah high-capacity lithium iron phosphate battery cells, with an energy density approximately 15% higher than conventional industry products. The system supports flexible modular expansion, enabling rapid adjustment of output strategies based on grid demands to achieve "plug-and-play and capacity expansion on demand."

Advanced Thermal Management for Long-Term System Operation

Equipped with an intelligent liquid-cooled temperature control system, achieving precise control of Pack-level temperature difference ≤ 3℃ and system-level temperature difference ≤ 5℃. This effectively slows down battery degradation and ensures stable and efficient system operation within a wide temperature range of -25℃ ~ 50℃.

Multiple Safety Protection Systems

Constructs a three-level active safety protection system covering "cell-module-system," equipped with Pack-level targeted fire protection and combustible gas monitoring. It supports linkage between the BMS and fire protection system to achieve ultra-early warning and rapid suppression. The entire system has passed authoritative certifications such as UL9540A and IEC62619.

Intelligent Battery Management & Cloud-Based Operation and Maintenance

Comes with an intelligent BMS (Battery Management System) that supports cell-level state monitoring, equalization control, and fault diagnosis. Data is connected to Hexon Energy’s cloud platform, enabling remote real-time monitoring, energy efficiency analysis, and predictive maintenance, significantly improving O&M efficiency and system reliability.

Project Site

Multiple white energy storage containers are neatly arranged on the hardened site, contrasting with the blue sky and presenting the integrated beauty of modern industry and clean energy. The system features a reasonable layout and neat wiring, reflecting high-standard construction quality.

Technical Features

• Grid-Forming Support Capability: Possesses transient and steady-state voltage support functions to enhance the strength of the connected power grid.

• Intelligent Dispatching Strategy: Supports AGC/AVC regulation with a response time ≤ 200ms, meeting the power grid’s rapid frequency modulation requirements.

• Full-Lifecycle Management: Provides end-to-end services from system design, installation, and commissioning to operation and maintenance, safeguarding long-term project value.

Benefit Summary

• Completes approximately 300 charge-discharge cycles annually, providing over 60 million kilowatt-hours of peak-shaving electricity.

• Improves regional new energy consumption capacity, expected to reduce curtailment of wind and photovoltaic power by approximately 8 million kilowatt-hours per year.

• Enhances power grid operational flexibility, effectively alleviating power supply pressure during peak demand periods and improving power supply reliability.

Project Significance

The completion and commissioning of the Donghai 50MW/100MWh Energy Storage Power Station marks Hexon Energy’s full-chain service capabilities in the field of large-scale grid-side energy storage, covering product R&D, system integration, and engineering delivery. Not only does the project provide flexible regulation resources for the local power grid, but it also serves as an important practical model for building a "source-grid-load-storage" coordinated new power system in the Yangtze River Delta region. It fully validates the value of Hexon Energy’s "safe, reliable, efficient, and intelligent" energy storage solutions.