【China Energy News】Decoding the Intelligent Secrets Behind Large-Scale Independent Energy Storage Power Stations
Driven by the continuous growth of new energy installations, large-scale energy storage on the source-grid side has become an important pillar of the power system and a key engine for industry growth. Large-capacity energy storage power stations are facing increasingly stringent requirements in terms of safety, system efficiency, and full lifecycle economic performance.
Relying on the Inner Mongolia Taiyaoxin Energy Storage 500MW/2000MWh energy storage power station, JDEnergy has applied its long-established string-based technology system to large-scale energy storage scenarios, enabling independent control of battery clusters, refined thermal management, and simplified operation and maintenance. While strengthening the safety foundation, the solution significantly improves project returns.
As one of the first companies worldwide to apply distributed intelligent energy blocks on a large scale in utility-scale energy storage applications, JDEnergy has delivered an innovative solution for large-scale energy storage with high efficiency, high safety, and high returns through its differentiated technology pathway, continuously strengthening its industry value as a full-scenario energy storage solution provider.
Rapid Delivery, Energy Storage in the Desert
Driving approximately one and a half hours from Wuhai City, Inner Mongolia, leads to Dengkou County, Bayannur City. Amid the vast Gobi Desert, a huge “array” of energy storage systems comes into view — this is the Taiyaoxin Energy Storage Power Station, the first phase of the 1GW/4GWh energy storage project in Dengkou County. As a key project in Inner Mongolia, the successful operation of this power station is of great significance for improving regional renewable energy consumption capacity and enhancing grid stability.
Located at the top of the Yellow River’s “几字弯” (Great Bend), the project is adjacent to the Ulan Buh Desert, China’s eighth-largest desert. The endless sand poses severe challenges to equipment sealing performance, while the extreme cold of nearly minus 30°C in winter places the thermal management system under the ultimate test.
At the same time, as an important node of the Mengxi Power Grid and a key hub for renewable energy transmission, Dengkou County has extremely high requirements for the grid connection response speed and stable support capability of energy storage systems.
Facing such a challenging environment, JDEnergy provided an efficient solution through “front-loaded processes.” Wang Yangjun, Assistant General Manager of JDEnergy and Head of the Engineering Center, told China Energy News that during the product design stage, the team simplified on-site commissioning procedures. Before leaving the factory, each unit completes all commissioning processes and precise capacity calibration. After arriving at the project site, the equipment can truly achieve “unpacking and immediate operation.” Through this approach, JDEnergy completed the delivery of all equipment within just 60 days and efficiently completed full-station commissioning and the “three charge-three discharge” verification within 7 days, setting a highly competitive delivery benchmark and refreshing the construction efficiency record for GWh-level energy storage power stations.
Wang Yangjun stated that the success of the Dengkou project not only demonstrates JDEnergy’s ability to overcome the delivery challenges of GWh-scale single projects, but also validates a replicable and scalable full-process delivery system. It has accumulated valuable experience in system integration and on-site management, providing a foundation for undertaking more similar projects in renewable energy-rich regions in the future.
String Architecture, Flexible Modular Expansion
From the perspective of physical layout and container appearance, the Taiyaoxin Energy Storage Power Station appears no different from traditional large-scale centralized energy storage plants — rows of white containers composed of hundreds of standardized battery units. What truly distinguishes the two is not the external appearance, but the underlying logic of the internal architecture.
The Taiyaoxin Energy Storage Power Station is equipped with 400 energy storage containers. Unlike the traditional centralized topology featuring “multiple battery clusters connected in parallel on the DC side and unified aggregation into large PCS units,” the entire power station adopts JDEnergy’s independently developed string-based prefabricated cabin Galaxy-1. Following the “All In One” design concept, the product integrates 314Ah lithium iron phosphate batteries, BMS, string PCS, fire protection systems, thermal management systems, power distribution, communication systems, and other core components into a standard 20-foot container, delivering key advantages including high energy efficiency, high safety, and high integration.
The firm commitment to string-based technology has been embedded into JDEnergy’s DNA since its establishment and has become the foundation of its differentiated competitiveness in the large-scale energy storage market.
The core design concept is “one battery cluster, one independent management system.” Each battery cluster is independently connected to a PCS power module, enabling refined cluster-level control with 100% charging and discharging depth. When thermal runaway occurs in a single cluster, the system can disconnect and isolate the fault within milliseconds without affecting adjacent battery clusters, ensuring that “the accident scope remains controllable” and minimizing the impact to the smallest possible unit.
At the same time, supported by JDEnergy’s independently developed BMS, precise full-time balancing strategy, cluster-level independent control topology, and efficient thermal management, battery cells are maintained within an optimal operating environment, effectively reducing thermal losses. Combined with vector control algorithms that improve conversion efficiency and optimized matching between PCS and battery string voltage, PCS losses are reduced by 30%, significantly improving overall conversion efficiency.
“Compared with centralized solutions, string-based architecture may have slightly higher initial investment costs, but it significantly enhances system safety, reduces operation and maintenance complexity, and provides greater lifecycle value.” Wang Yangjun further explained that JDEnergy’s string-based energy storage solutions have never been designed to serve a specific market alone, but instead return to the fundamental value of energy storage systems — solving the imbalance of energy distribution across time and space.
JDEnergy’s prefabricated cabins and energy block products independently integrate energy storage capabilities as well as AC/DC power conversion functions. Through multi-unit parallel connection, they enable flexible “building-block-style” expansion. This product-oriented and modular approach not only allows flexible deployment in distributed commercial and industrial scenarios, but also enables successful implementation in major GWh-scale source-grid-side projects, truly breaking application boundaries and achieving cross-scenario empowerment.
Intelligent Operation, Maximizing “Calculated” Returns
As the large-scale energy storage sector transitions from policy-driven growth to market-driven development, project operation efficiency and actual revenue performance have become the core indicators for evaluating corporate competitiveness.
Data provides the strongest evidence. According to the metering data at the 220kV grid connection point of the Dengkou Taiyaoxin Energy Storage Power Station, its comprehensive efficiency exceeds 88.5%. According to the latest Energy Storage Power Station Operation Statistics released by the China Electricity Council, the average comprehensive efficiency of grid-side energy storage in the first half of 2026 was 82.75%. The Taiyaoxin Energy Storage Power Station exceeds the industry average and ranks among the leading projects.
High comprehensive efficiency is not only attributed to the advantages of the hardware system architecture and performance, but also benefits from software’s ability to fully unlock system potential. Inside the main control room of the Taiyaoxin Energy Storage Power Station, 3D digital twins and real-time data dashboards enable deep integration between the physical power station and its digital model. The operating status of every battery pack can be viewed on one screen, while every kilowatt-hour of electricity is precisely calculated and dispatched, fully releasing system performance.
Wang Suitao, Deputy General Manager of Xi’an JDEnergy Cloud Carbon Technology Co., Ltd., introduced that the revenue of the power station consists of two parts: peak-valley price arbitrage revenue obtained through participation in electricity market transactions and subsidy revenue corresponding to discharged electricity.
Supporting the maximization of the former is the “investment decision-making — intelligent operation — smart maintenance” integrated digital intelligence product system built by JDEnergy:
Based on the Zhuque Investment Research Intelligent Agent (investment decision-making), JDEnergy provides an independent calculation engine, data asset engine, and operational insight engine, shortening the time required for single-project evaluation and report generation from two days to two hours.
Based on the Xuance Trading Intelligent Agent (intelligent operation), the system automatically generates multiple bidding strategies for the next day’s electricity market and provides AI-recommended solutions. It captures intraday peak-valley price fluctuations in real time, deeply analyzes market supply-demand conditions and grid constraints, and assists bidding decisions to reduce risks.
Based on the eMind Energy Storage Cloud Platform (smart operation and maintenance), the system transforms operation and maintenance from “passively receiving alarms” to “actively discovering problems,” enabling proactive lifecycle extension maintenance and cell-level health management.
“With the support of these capabilities, the Taiyaoxin Energy Storage Power Station adopts a sawtooth charging and discharging strategy, achieving 1.3–1.4 cycles per day. Its revenue performance consistently ranks among the top tier in the region, while its comprehensive operational capability in markets such as Ningxia and Mengxi remains within the top 10% of the industry.” Wang Suitao said.
This comprehensive technological advantage covering both hardware and software has built a full-chain growth engine integrating project development, products and solutions, intelligent operation, and digital maintenance. It is driving energy storage projects from merely being “buildable” toward becoming “operable, optimizable, and sustainable.”
