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Case studies

Mozambique rises to the energy challenge

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Bouygues Energies & Services has built an additional power line for Brazilian group Vale to help with the expansion of its mine in Tete province, Mozambique. This large-scale project will contribute to the development of the country’s national power grid.

124

pylons installed

220

KV carried

2,600

metres of cable

With a presence in Mozambique now spanning more than 10 years,
Bouygues Energies & Services took on a complex technical project to supply electricity to the Vale mine.

The installation of the dual-circuit line required:

  • the mine-sweeping and clearing of 42 km² of savannah
  • the installation of 124 overhead pylons and their foundations
  • the installation of 600 km of cable

The project was a major technical challenge for Bouygues Energies & Services, involving deployment on land and over water. Crossing the Zambezi river required the work of design/build teams from France and Africa for the installation of:

  • Two 156-m high pylons on each bank of the river
  • 2,600m of suspended Curlew cables (with carbon fibre cores), connected to a central supporting structure

The Vale project was also a remarkable challenge in terms of manpower:

  • + 500,000 hours of work
  • cooperation between multi-cultural teams
  • training local teams to work at heights and a gradual ramp-up of their skills
  • zero accidents

Bouygues Energies & Services is proud to have contributed to the development of the region and Mozambique’s power grid infrastructure.

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