Grande Cote, Senegal
Grande Côte + Wärtsilä

Reference case

36 MW power to Grande Côte, Senegal

The Grande Côte Mineral Sands Project aims to extract valuable zircon and titanium dioxide from sandy deposits along the Senegalese coast from 2014 for at least the next 20 years. The project uses dredge-mining techniques in a dammed reservoir that will slowly shift through the sand dunes. A floating electrically powered dredge vessel will suck up sand and centrifugally separate heavier minerals for further treatment in a processing facility at the mining camp.

The mining camp also has workers’ accommodation, medical facilities and a wastewater treatment plant, all in a location far away from any larger settlements and unconnected to the national grid. A reliable, clean, on-site source of energy, operable in island mode, is essential. 

WhoGrande Cote mineral sands project
WhatMulti-fuel engines

This is what we achieved


Flexible power generation

This is my third project with Wärtsilä, and once again I’ve appreciated Wärtsilä’s focus and support for their customers as the number one goal during both construction and operations.

Tony Warnett, Power Station Superintendent, Grande Côte Operations

How we did it

Challenge icon


  • High variability in energy demand between full operation and standby mode, when only base camp and mineral separation plant is running

  • Hot, dry, dusty conditions

  • Natural gas may later become available as a favoured fuel

Solution icon


  • Flexible configuration with four large engines and one smaller engine

  • Specially selected air intake filter and radiator cooling solutions

  • Multi-fuel Wärtsilä 34DF engines can easily switch from oil to gas

Benefit icon


  • High rates of efficiency during periods of both high and low
    energy demand

  • Efective prevention of dust problems, and low cooling water requirement

  • Option to switch to cleaner and cheaper gas if pipeline built

The main details

   Customer  Grande Côte Operations (Mining industry)
   Type  Wärtsilä 34DF multi-fuel power plant
   Operating mode  Flexible baseload
   Gensets   4 x Wärtsilä 20V34DF + 1 x Wärtsilä 9L34DF
   Total output  36 MW
   Fuel  LFO/HFO with the option to use natural gas when available 
   Scope  EPC (Engineering, Procurement & Construction)
   Delivered  2013
Map pointing to Senegal

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