Midea Group

CLOU Empowers Hybrid BESS Landmark in Extreme Cold: Inner Mongolia 250MW/1000MWh Standalone Storage Plant Goes Online

2026/01/08




Recently, a 250MW/1000MWh standalone energy storage project in Inner Mongolia successfully achieved full-capacity commissioning and grid connection under extreme sub-zero conditions, setting a new benchmark for "New Power System" infrastructure in Inner Mongolia.




The project features a world-leading hybrid architecture of Lithium Iron Phosphate (LFP) and All-Vanadium Redox Flow Batteries (VRFB). As the provider of the core LFP battery systems, CLOU delivered a utility-grade solution that ensures high-performance operations, serving as a critical "Grid Stabilizer" for the West Inner Mongolia power system.


Strategic Impact: A "Flexible Safety Valve" for the Regional Grid

With renewable penetration exceeding 50% in West Inner Mongolia, the grid faces immense volatility. Positioned at a strategic node and under direct grid dispatch, this project provides essential capacity firming, frequency & voltage regulation, black start, and renewable curtailment mitigation, significantly bolstering grid resilience and flexibility.


Commercial Innovation: Maturing the Standalone Storage Business Model

The project capitalizes on China’s evolving power market through a diversified revenue stream, including discharge compensation, energy arbitrage in the spot market, and ancillary services. This multi-scenario synergy validates a sustainable and bankable model for large-scale standalone storage, providing a scalable template for the industry.


Tech Leadership: AI-Driven "Trading-Oriented" Hybrid Storage

The plant leverages a cutting-edge "Trading-Oriented Smart Hybrid" architecture to optimize the synergy between high-power and high-energy assets:

· LFP Units: Handle sub-second and minute-level responses to capture high-frequency regulation and volatile spot-price spikes.

· VRFB Units: Manage multi-hour energy shifting for long-duration storage and capacity value. Powered by AI-driven forecasting, the system dynamically predicts price curves and dispatch signals, intelligently allocating assets across different timescales to maximize Internal Rate of Return (IRR) and operational efficiency.



CLOU: Four Pillars of Utility-Scale Excellence

1. Full-Stack Safety Defense: CLOU’s four-tier safety architecture integrates cell-level protection, advanced thermal management, and fire suppression. This "Active Safety" design eliminates the risk of thermal runaway propagation across enclosures, backed by CSA-800 large-scale fire test certification.

2. Cluster-Level Intelligence: Featuring proprietary cluster-level control, the system enables precise management and flexible fault isolation by battery cluster. Faulty clusters can be isolated online and automatically reconnected, while power allocation is adjusted in real time.

3. Rapid Deployment & Turnkey Delivery: With a modular design and over 95% factory pre-assembly, CLOU significantly compressed the on-site commissioning phase. utilizing one-click configuration, smart commissioning, and intelligent inspection/diagnostic tools, the project achieved a record-breaking delivery cycle.

4. Engineered for Extreme Environments: To withstand the -30°C winters of Inner Mongolia, the units are equipped with Arctic-grade thermal control systems. The IP55-rated, positive-pressure enclosures provide a specialized defense against prairie dust and sand, ensuring long-term reliability in harsh desert-fringe climates.



The successful grid-connection of this project marks a milestone in the "Rapid Delivery, Efficient Deployment, and Reliable Interconnection" of massive-scale storage. CLOU remains committed to delivering high-reliability, bankable storage solutions to accelerate the global transition toward a Net-Zero future.