Powering China's Green Future: RelyEZ Lights Up the 200MW/400MWh Smart Energy Beacon in Yao'an, Yunnan
Chuxiong, Yunnan China – Nestled in the scenic “South of the Clouds,” a landmark energy project is set to energize Yunnan’s clean energy transition. The highly anticipated Yao’an RelyEZ 200MW/400MWh Independent Shared Energy Storage Station, like a powerful “green heart” ready to pulse, is scheduled to connect to the grid on April 30. Developed and delivered by RelyEZ Energy Storage Technology Co., Ltd. (“RelyEZ”), this project not only marks another milestone for RelyEZ’s industry-leading expertise and innovation in large-scale energy storage but also stands as a shining example of cutting-edge technology and social value.
The Powerhouse “Super Battery”
Located in Yao’an County Industrial Park, this energy storage station represents a major investment of approximately 600 million RMB. With a massive 200MW/400MWh capacity, it exemplifies the shared energy storage model. The system can “swallow” surplus electricity during low-demand periods and cleverly achieve the “time-shifted” consumption of photovoltaic and other renewable energy. By storing abundant clean energy generated during the day or windy periods and releasing it precisely when the grid needs it, the project effectively addresses the inherent intermittency of renewables, significantly boosting their consumption rate and utilization efficiency, while ensuring a stable balance between energy supply and demand.
The project’s success relies on RelyEZ’s “intelligent brain” and “robust body”:
· Intelligent Brain (GridHub EMS): This advanced energy management system, a product of RelyEZ’s independent R&D, acts like a strategic commander—monitoring in real time and intelligently dispatching energy to ensure every kilowatt-hour is used efficiently and effectively.
· Robust Body (GridUltra5016 & Converter-Transformer Units): The project includes 40 sets of 5MW/10MWh lithium iron phosphate battery energy storage systems, supported by a 220kV booster station. Eighty GridUltra5016 liquid-cooled battery cabins work in tandem with 40 integrated 5000kW converter-transformer units. The state-of-the-art centralized liquid cooling technology maintains a cell-level temperature difference within 2.5°C, effectively eliminating weak points, improving overall system efficiency by 2–3%, and greatly extending the battery lifecycle. This reflects RelyEZ’s relentless pursuit of product quality and reliability, ensuring long-term stable operation.
A Symphony of Cutting-Edge Technologies
Beyond its scale, the Yao’an project serves as a “testbed” and “showcase” for advanced energy storage technologies. It integrates intelligent monitoring systems powered by AI and big data analytics to enhance safety, predictability, and stability. Leveraging sharp market insight and continuous R&D investment, RelyEZ is pioneering the introduction of diverse storage technologies such as immersed and modular systems, aiming to establish a nationally leading industrial demonstration model and open new avenues for energy storage development in Yunnan and across China.
Empowering a Greener Future: RelyEZ’s Steady March
Since its founding in 2019, RelyEZ has been driven by the mission to “make quality green energy accessible to every user.” The company focuses on new power system and sustainable energy solutions, having delivered over 13GWh of energy storage projects worldwide. RelyEZ’s global footprint and capabilities have earned it recognition from BloombergNEF as a Tier 1 global energy storage manufacturer. This success is rooted in deep customer understanding, relentless innovation, and comprehensive strength across the entire value chain—from project development and core technology R&D to intelligent manufacturing and global service. RelyEZ is committed not only to supplying equipment but also to being a trusted partner, providing full lifecycle support from planning to operations. Its products’ reliability and project bankability have been widely validated.
Lighting Up the Economy, Driving Green Growth
The grid connection of the Yao’an energy storage station means much more than power regulation. Acting as a powerful “green engine,” it will significantly boost local renewable energy consumption and provide solid support for grid stability. Connected to the 220kV Guanglu substation, it functions as a nimble “super regulator” for the grid. Facing the challenges of renewable generation intermittency and random load fluctuations, it can rapidly respond to grid dispatch commands and actively participate in critical ancillary services such as frequency regulation and peak shaving. Through precise charge and discharge control, it smooths frequency fluctuations, stabilizes voltage, and performs peak-valley shifting—like equipping the grid with intelligent “shock absorbers” and “balancing beams”—greatly enhancing the flexibility, reliability, and resilience of the entire power system.
Importantly, this project will synergize with RelyEZ’s existing 2GWh energy storage manufacturing base in Yao’an to form a “dual engine,” building an integrated ecosystem of R&D, production, and application. This exemplifies RelyEZ’s full value chain advantage and deep involvement in driving local industrial development. The project is expected to contribute approximately 100 million RMB in annual output and 10 million RMB in tax revenue, powerfully fostering the regional energy storage cluster and making a key contribution to Yunnan’s “Dual Carbon” goals and its ambition to become a green energy powerhouse.
As the grid connection date approaches, this smart energy storage beacon, meticulously crafted by RelyEZ, is set to rise brightly in Yunnan—illuminating the path to regional green development and contributing China’s wisdom and strength to the global energy transition.