Exploring How Cables Power Battery Energy Storage Systems

 


Battery Energy Storage Systems (BESS) are one of the major stakeholders in the global energy transition goal.

BESS is a rechargeable energy solution that enables electrical energy to be stored for use in the future. It reduces overreliance on grids and keeps their stability intact. It also helps in optimizing the energy usage and efficiency of various applications.

In this blog, we learn about BESS facilities and the role of cables in establishing a reliable transmission setup.

How BESS Facility Works

BESS is usually integrated with on-grid and off-grid systems.

  • Charging phase: When electricity from a grid or a solar panel flows into the system, batteries store this energy by converting it into chemical form.
  • Discharging phase: When the source stops energy production, the BESS discharges and powers homes by converting the stored energy back into electrical energy.

The main benefit of BESS is that energy stored during low-demand hours can be used when demand spikes.

Applications of BESS

  • These systems find applications in power utilities and renewable energy installations (solar and wind).
  • They are also used in data centers, commercial buildings, and industrial backup systems.
  • Most importantly, BESS plays a big role in electric vehicle (EV) charging infrastructure.

The Role of Cables in BESS

In a BESS facility, the flow of electricity is bidirectional. It requires specialized DC and AC cables to form the circulatory system of a BESS, ensuring smooth charging and discharging functions.

AC and DC Cables

  • During the charging phase, high-quality DC cables transfer power from rectifiers to battery racks after grid AC is transformed into DC for storage. Usually, cables with a rating of up to 1500 V are used here.
  • During the discharge phase, these same DC cables carry stored power to inverters, which convert it back to synchronized AC (50-60 Hz) and feed it to transmission or distribution networks through AC cables.

These cables should be capable of handling high thermal loads. They should provide operational reliability for at least 20 to 30 years.

Control and Support Cables

  • BESS also has its own Battery Management System (BMS) that keeps track of safety parameters such as charge and temperature in real time. To carry communication signals for BMS, multi-conductor control cables are used.
  • Supporting cables are used to power auxiliary systems like HVAC and fire suppression, ensuring thermal resilience and operational control.

Conclusion

In conclusion, as much as BESS is important for the renewable energy transition, cables are also important for ensuring operational safety and reliability of these systems.

If you are looking for a reliable cable manufacturing company in India, you should consider DICABS. We deal in all types of renewable energy cables, from special cables for BESS to solar cables, wind turbine cables, and EV infrastructure cables.

For more information, visit us at https://dicabs.com.

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