Dong Fang Electronics

Storage system Reliability Efficiency Protection

Improves power quality.
Delays costly infrastructure upgrades.
What is...

Battery Energy Storage System (BESS)

It is an advanced solution designed to store electrical energy and release it when needed, improving the network reliability and efficiency. The BESS of DFE integrates key components such as: 

  • High-performance batteries. 
  • Intelligent Battery Management Systems (BMS). 
  • Efficient Power Conversion Systems (PCS). 
  • Centralized Energy Management Systems (EMS). 

These systems are complemented by thermal management and Smart fire protection to guarantee safety and durability. 

Per year in Dongying
0 + MWh

Generation: 

  • Smooths out the production of renewable energy (solar/wind). 
  • Participate in frequency regulation. 
  • Allow black start (black-start) in thermal power plants. 

Electricity grids: 

  • Improve the power quality. 
  • Delays costly infrastructure upgrades. 
  • It functions as emergency reserve. 

End users: 

  • Peak trimming (peak shaving), load balancing, and backup power for industries, businesses, and microgrids. 

Environmental benefits

Renewable optimization

Increase the use of solar/wind energy, reducing dependence on fossil fuels. 

Emissions reduction

Reduce your carbon footprint.

Energy efficiency:

Reduce line losses and improve network performance.

Key applications

BESS

Renewable integration

Maximizes solar/wind energy absorption and stabilizes fluctuations.

Microgrids

Allows isolated operation (islanding) and reconnection to the grid without interruptions.

EV charging

Reduce network impact and optimize energy usage.

Industrial/commercial sector

Reduce costs through demand management

Substations/distribution networks

Improves voltage control and reduces line losses.

BESS

Economic Benefits

Cost savings:

Peak shaving and load shifting reduce electricity bills.

Revenue generation:

Participation in network services (e.g., frequency regulation).

Deferred investments:

Delays infrastructure upgrades.

Reduced maintenance:

Modular design and predictive analytics minimize downtime.

BESS

Successful Projects

DFE has implemented BESS on a large scale with global impact:
  1. Power generation projects:
  • Phase III de Dongying (China): 41.76MW solar + 2.6MW/5.2MWh storage, improving renewable integration. 
  • Alashan Wind + Storage (China): 45MW/30MWh to stabilize wind farms and regulate frequency. 
  1. Network projects:
  • Yantai Storage Center (China): 450MW/950MWh (the largest BESS string-type from China), stabilizing renewables. 
  1. Projects in users/microgrids:
  • DFE Zero Carbon Park (Yantai): Integrates solar, storage, and EV charging for 100% green energy. 
  • Airport with microgrid: 3.15MW BESS with backup from 8+ hours (VSG technology). 

Results: 
✔ Increased renewable penetration (e.g., +50MWh/year in Dongying). 
✔ Financial savings (e.g., cost reduction in Jidong Cement). 
✔ Critical backup (e.g., 8 hours at the airport).  

Green Energy
BESS

Technical benefits

Network stability

Active frequency/voltage regulation (response time ≤20ms). 

High efficiency

PCS with 99.1% conversion efficiency and adaptive algorithms. 

Smart monitoring

Real-time diagnostics (PCS, BMS, and auxiliary systems) via EMS. 

Reliability

Reduces outage duration and ensures uninterrupted power for critical loads. 

Security

Advanced thermal management and fire protection systems. 

Processing 95,000 Tons of Recyclable Waste Every Year.