Remote mining sites often depend on diesel generators while facing high startup loads, frequent power fluctuations, and demanding operating conditions. Energy storage can complement diesel generation by responding rapidly to load changes, reducing generator stress, and improving overall power supply efficiency.
Enhancing Energy Operational Efficiency in Mining Areas Through Energy Storage Regulation
Mining operations are typically located in areas far from urban power grids, and energy supply has long relied on diesel generator sets.
However, during actual operation, the frequent startup of large mining equipment and high instantaneous power demands can easily lead to load fluctuations in diesel generator sets, increased fuel consumption, and greater equipment maintenance pressures. At the same time, when multiple energy systems operate independently, the system’s coordination capabilities are insufficient, making it difficult to meet the mining site’s requirements for continuous and stable operations.
Addressing the complex energy application environment in remote mining areas, YUNT helps customers build a more stable and efficient hybrid energy power supply system—enhancing the reliability of mining energy systems—through energy storage system integration, multi-unit parallel control, and diesel-storage coordination strategies.
Scenario Requirements: Addressing the Challenge of High Inrush Loads in Mining Areas
Mining site energy systems typically exhibit the following characteristics:
- High startup power requirements for production equipment;
- Frequent load fluctuations;
- Limited access to the utility grid;
- Complex operating environments characterized by high temperatures and high dust levels.
Traditional diesel power supply systems are prone to:
- Generator sets operating at high loads for extended periods;
- Instantaneous surges leading to increased fuel consumption;
- Frequent equipment start-ups and shutdowns create maintenance pressures;
- Continuously rising operating costs.
Therefore, mining sites need to utilize the rapid response capabilities of energy storage to regulate load fluctuations and improve overall power supply efficiency.
System Solution: Coordinated Operation of Energy Storage and Diesel Engines
Based on the operational characteristics of mining sites, YUNT provides an integrated solution combining diesel generators and energy storage, covering equipment selection, system integration, and control strategy optimization.
Project Configuration:
- 3 sets of 50 kW/115 kWh energy storage systems;
- Parallel power conversion system(PCS) for energy storage;
- STS intelligent transfer switch;
- An EMS energy management platform specifically designed for mining areas.
Through the coordinated operation of energy storage and diesel generator sets, an energy model of “energy storage regulation with diesel generator backup” is established.
System Operation Logic:
Normal Production Phase:
- Diesel generators maintain the base power supply;
- Energy storage rapidly responds to load changes;
- Absorbs transient power fluctuations caused by equipment startup.
High-load phase:
- Energy storage releases power to meet peak demand;
- Reduces the instantaneous load on diesel generators;
- Improves generator set operating efficiency.
During equipment switching or in the event of a fault:
- The static transfer switch(STS) enables rapid energy switching;
- Energy storage provides transitional support;
- The system maintains continuous load operation.
Leveraging VSG’s communication-free parallel control technology, multiple PCS units can achieve autonomous synchronization and power coordination:
- Coordinated operation of multiple devices;
- Automatic power balancing;
- Maintain system stability in the event of a single-unit failure.
Additionally, the system is specifically designed to adapt to the high-temperature, high-dust environment of mining sites, meeting the demands of long-term industrial operation.
Project Value: Enhancing Energy Efficiency and Reliability in the Mining Area
Through the integration of a diesel-storage hybrid system, the project helps the mining site optimize its energy structure, reduce the operational burden on diesel generators, and improve equipment efficiency.
The solution not only enhances the mining site’s resilience to load shocks and energy fluctuations but also reduces the operational burden associated with traditional diesel power supply models.
This project demonstrates YUNT’s comprehensive capabilities in industrial-grade energy storage clusters, multi-unit parallel control, and deployment in complex off-grid scenarios, providing reliable energy solutions for high-load environments such as African mining sites, oil fields, and construction camps.
