Battery Energy Storage System (BESS)

The origins of short circuit in network are accidental disturbance caused by undesired contact between the conductors, dielectric breakdown of insulation due to overvoltage's, breaking of cable, falling of trees, contacts with animal or human errors. The effect depend on the architecture of the power system. Short Circuit Analysis is performed to determine the currents that flow in a power system under fault conditions. The purpose of studying a network configuration subject to a short circuit is to :  


1. Identification of risk situation that can possibly causes destruction of devices due to electrodynamic forces,excessive temperature rise and overvoltage. 

2. Accessing the risk and assist in making basic design decision to limit the effect of fault concerning system earthing design, suitable sizing of devices.

3. If the short circuit capacity of the system exceeds the capacity of the protective device, a dangerous situation exists. Since growth of a power system often results in increased available short-circuit current, the momentary and interrupting rating of new and existing equipment on the system must be checked to ensure the equipment can withstand the short-circuit energy. Fault contributions for utility sources, motors and generators are taken into consideration. The results of a study are also used to selectively coordinate electrical protective devices.


Our Approach

We have over 11 years’ experience delivering best-in-class technical services for large-scale battery storage systems globally. Ranging from 10 MW to 400 MW, we provide electrical engineering consultancy and design services that cover both greenfield and brownfield sites.

Our BESS solutions include, but are not limited to:

  • Power System Studies
  • Grid Connection Studies
  • Detailed Design
  • Conceptual Design
  • Arc Flash Studies

What are Battery Energy Storage Systems (BESS)?

Battery energy storage systems (BESS) capture surplus energy from both traditional and renewable sources. These assets ensure grid stability during periods of low demand and enable efficient storage of energy for optimal usage.

Large-scale battery storage is becoming increasingly important for a wide range of industries, enhancing energy efficiency and power distribution. Custom-designed BESS reduces power consumption, improves the sustainability of electrical networks, and plays a crucial role in achieving the UK’s 2050 net-zero targets and stabilising the power grid.

Consultancy & Design Services

  • G99 and G100 connection applications
  • Grid code compliance (11kV to 400kV)
  • Connection management – assistance connecting your BESS to a Distributed Network Operator.
  • Preparation of initial connection assessments, cost estimates, and detailed connection applications
  • Power system studies and analysis
  • Conceptual design and project development support
  • Detailed technical designs
  • Earthing studies
  • Primary plant layout design (main structures, surge arrestors, circuit breakers, disconnectors, etc.)
  • Project management, including close liaison with civil contractors
  • Guidance through the regulatory process, risk assessments, and cost analysis
  • Selecting the most appropriate battery energy storage equipment for energy efficiency
  • Arc Flash Studies
  • Secondary engineering (protection, schematics, communication, cables, etc.)
    Feasibility Studies

Take control of your energy usage with EPS’s expert electrical consulting and design services. Contact us today and gain insights tailored to your battery energy storage systems.