Power Generation

Gas to Power

As an EPC and EPCM contractor with a diversified service offering, Lesedi offers engineering and project management services including coordination, design, procurement, and construction management and execution. In the field of Gas to Power, Lesedi has several references:

Lesedi was responsible for the Engineering, Procurement and Construction of the balance of plant for Eskom’s four gas turbine power stations constructed at Atlantis and Mossel Bay, in the Western Cape, South Africa. Lesedi also erected 14 x 150 MW gas turbines for Siemens and the associated turbine halls.

Lesedi's scope of work

Detailed design, procurement, construction and commissioning of the Balance of Plant (BoP) for the gas turbine power stations:

  • Fuel unloading, treatment and forwarding systems
  • Fire protection and detection systems
  • Demineralised and potable water distribution systems
  • Compressed air system
  • Electrical power distribution system
  • Electrical, control and instrumentation
  • Design, procurement and installation using a PROFIBUS network and EMH instruments
  • Supply fully documented construction records
  • Supply a full set of operating and maintenance procedures
  • Dedicated training for Eskom personnel on plant operations and maintenance

Turbine hall erection

  • 1,800 tons of structural steel work
  • 8,400 m² of sound proofing and environmental protection cladding
  • Support beams and rails for 250-tonne overhead gantry cranes

Mechanical erection of nine 150 MW Siemens gas turbines at Atlantis, and five 150 MW Siemens gas turbines at Mossel Bay Installation of the power-generating components including turbines, combustion chambers, generators and clutches using laser alignment equipment:

  • Installation of all associated mechanical equipment and auxiliary and utility skids
  • Provision, training and management of inexperienced artisans
  • Supply full documented construction records
  • Supply a full set of operating and maintenance procedures
  • Plant operations and maintenance training for Eskom personnel
  • Turbine hall erection for Roshcon

Piping fabrication & installation

  • 14,000 m of piping (50NB to 300NB carbon and stainless steel)
  • Contract value: > $50 million

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