Substation Construction

The company has expertise for substation construction from 6.6kV to 765kV. Services include:

-     Civils Works (all substation civil works)

-     General building works, concrete and steel works

-     Equipment Installation( Transformers, Circuit Breakers, CT’s, PI,Isolators, Panels &

          Earth Switches)

-     Stringing of Busbars

-     Cable & panel wiring & installations

-     Earth mats

We are one of the few service providers appointed by Eskom to handle their distribution and transmission work for substations up to 765kV. GES has executed substation construction projects for Eskom Transmission throughout the country , including 765kV Hydra Substation (De Aar Northern Cape); Koeberg 400kV HV Yard; Grassridge 400kV Substation (East London Eastern Cape); Eros 400/132kV Substation (Kokstad, KZN); Spitskop 400kV Substation (Northam , Limpopo); Marang 400kV Substation (Rustenburg, North West); Matla 400kV HV Yard (Witbank, Mpumalanga) etc..

Distribution Services

Live Work

We have one team which performs Gloving, Stick and Bare Live work methods on Distribution Networks of up to 132kV. GES  currently has 3 year Line Work Maintenance contracts with Eastern Cape Operating Unit (ECOU) & KZN Operating Units (KZNOU). In future we intend expanding our capacity to be able to work on lines up to 765kV.

MV & LV Maintenance and Electrification

We have further extended our services to electrification for domestic and rail clients and have established a team dedicated for handling maintenance and new installations.

Railway Signaling Maintenance & Repairs

Our expertise includes maintenance, daily faultfinding, repairs and Installation on the following:

-     Signalling equipment,

-     Points machines  with  a specialty  on GRS 5A, M5 , Style  63 ,Jeumont Schneider,

          HW and Switchmatic,

-     Color light Signals, Signalling Interlocking systems & control panels,

-     Centralized Train Control Main Line track systems,

-     Rail/road level crossing Flashlights and Booms (physical barriers),

-     Signalling Supervisory and Interfacing systems,

-     Inverters, DC Chargers and Uninterrupted Power Supply (UPS) systems

Oil Purification Plant Hire

We hire out Oil Purification Plants & Vacuum System Plant for transformer oil purification

and ciculation.