Smith Brothers

Ernesettle 20MW BESS

Power System Studies and Earthing Analysis

Aurora was commissioned by Smith Brothers to carry out a series of power systems studies in order to meet compliance with the DNO, for a new 20MW Battery Energy Storage Site (BESS), as a brownfield development of a previous STOR facility.

The studies scope included loadflow, short circuit, P28/2 voltage disturbance, P29 unbalance, ENA G5.4 Stage 3 harmonics, G99 Type C studies and protection coordination; which were all carried out using the DIgSILENT Powerfactory software package.

In addition to the power system studies, Aurora also carried out a soil resistivity survey and an earthing study in CDEGS to identify the Earth Potential Rise (EPR), touch and step voltages and transfer risks from the upstream grid substation.


Key Features

Client: Smith Brothers
Industry: Renewables
Plant Type: Battery Storage
Project: Ernesettle
Contract: Lump Sum
Date: 2022

“Aurora was appointed by Smith Brothers to carry out a series of power system studies for a redevelopment of an existing STOR site into a new 20MW BESS facility.”