As the global energy transition accelerates, energy storage is expanding beyond conventional power applications into increasingly demanding industrial environments.

When deployed in mining, metallurgy, ports, data centers, oil & gas fields, and high-altitude or cold-climate regions, energy storage systems face far greater challenges than conversion efficiency alone. Long-term reliability, operational safety, grid support capability, and environmental adaptability have become equally critical.

The true measure of an energy storage technology is not how it performs under standard laboratory conditions, but whether it can operate safely and reliably in the harshest real-world environments.

Recently, JingTsing partnered with a leading Chinese manufacturer of intelligent mining equipment to develop an emergency energy storage power supply system for underground coal mines. The project successfully integrates JingTsing's JTES-215K-W Liquid-Cooled PCS, demonstrating the company's capability to deliver reliable energy storage solutions under extreme operating conditions.

Extreme Environments Demand More from Energy Storage

Underground mining is widely recognized as one of the most challenging application environments for energy storage systems. High humidity, heavy dust, corrosive conditions, and explosive gases such as methane place exceptionally stringent requirements on equipment safety and reliability.

Even more importantly, power interruptions can immediately impact critical systems—including ventilation, drainage, and hoisting—directly affecting operational continuity and personnel safety.

Energy storage systems in these environments must deliver not only high efficiency, but also uncompromising reliability when it matters most.

Leveraging years of expertise in power conversion technology, JingTsing has developed a fully liquid-cooled PCS solution specifically designed for harsh industrial applications. Combining robust hardware architecture with intelligent control strategies, the solution ensures stable long-term operation even under the most demanding conditions.

The system adopts a bidirectional DC/DC converter together with a fully liquid-cooled PCS architecture, offering a compact design, wide operating temperature range, excellent thermal performance, and industry-leading reliability with an exceptionally high MTBF (Mean Time Between Failures).

The complete energy storage system is housed within a fully enclosed explosion-proof enclosure and complies with China's stringent mining safety standards, ensuring safe operation in methane-rich underground environments.

                              System Topology Diagram

From Power Conversion to Critical Energy Support

Traditionally, the Power Conversion System (PCS) has been regarded primarily as an energy conversion device.

However, in mission-critical industrial applications such as mining, the PCS is evolving into the intelligent control center of the entire energy system.

The JTES-215K-W Liquid-Cooled PCS supports seamless switching between grid-connected and off-grid operation while rapidly establishing an independent microgrid to maintain continuous power for critical loads.

Drawing on advanced motor drive control technologies, the system intelligently adjusts both output frequency and voltage, enabling precise and flexible control of industrial equipment such as large ventilation fans and water pumps. This ensures stable operation during grid disturbances, motor startups, and other dynamic operating conditions.

Rather than functioning as a passive interface between the grid and the battery system, the PCS becomes an active energy management platform that coordinates energy storage, the utility grid, and industrial loads.

This evolution—from energy conversion to system-level support, and from device functionality to application value—represents the future direction of the energy storage industry and remains a core focus of JingTsing's technology innovation.

                             System Connection Diagram

Engineered for the Harshest Conditions

Extreme environments demand uncompromising equipment reliability.

For mining applications, JingTsing adopts a fully liquid-cooled architecture that eliminates external cooling fans, significantly reducing the risk of cooling failure caused by dust accumulation.

The product features IP65 protection together with enhanced anti-corrosion capability, enabling long-term operation in dusty, humid, and corrosive environments.

By combining hybrid SiC power devices with advanced control algorithms, the PCS achieves up to 98.8% conversion efficiency, delivering both exceptional performance and outstanding reliability.

In addition, the system provides active grid support functions that mitigate load impacts, improve power quality, and ensure stable operation of critical industrial equipment.

Whether operating in high temperatures, high humidity, heavy dust, weak grids, or isolated microgrids, JingTsing remains committed to application-driven innovation—developing products specifically designed for real-world operating conditions rather than laboratory environments.

Building Energy Storage Solutions for Every Application

As the global energy transition continues, energy storage applications are rapidly expanding—from utility-scale renewable power plants and commercial & industrial facilities to underground mining, data centers, port electrification, and off-grid microgrids around the world.

The successful deployment of this mining emergency energy storage project once again demonstrates the outstanding adaptability and reliability of JingTsing's PCS solutions across diverse and demanding applications.

Looking ahead, JingTsing will continue advancing power conversion technologies for extreme operating environments, delivering high-performance energy storage solutions that support global energy transition and accelerate the development of more resilient, efficient, and sustainable power systems.