The 14 MW plant is required to ensure a reliable and efficient supply of electricity, which is essential for the mining project’s operations. Due to its remote location, the mine will depend solely on this plant for its power needs. The order was placed by Africa Power Services (APS), the France based main contractor for the engineering, procurement, and construction of the power plant, on behalf of Fortuna Mining. It was booked as order intake by Wärtsilä in 2Q26.
The Wärtsilä 32 engine generating set has established a reputation for reliability during 30 years of successful operations, delivering more than 8000 MW of energy to customers around the world. Its fast-starting flexibility supports the integration of intermittent supplies of renewable energy, such as wind and solar, into power systems by enabling efficient grid balancing. Fortuna Mining has indicated its intention to add renewable energy to this micro grid in the near future.
“Operating a remote, off-grid mine requires reliable power, as any unscheduled downtime carries financial and operational risks. Wärtsilä’s engines deliver the continuous performance required for such demanding conditions. Selecting them for Diamba Sud ensures we mitigate operational risks from day one, while building a power foundation that can seamlessly integrate renewable energy assets as the mine evolves,” says Cedric Fernandez, Managing Director at APS.
In addition to the engine generating sets, Wärtsilä’s scope includes basic engineering, engine specific auxiliary units, and the engine control and monitoring system. The company will also provide advisory support during the installation and commissioning phases.
“This repeat order from APS reinforces Wärtsilä’s position as a trusted and reliable solution provider for the mining industry’s power needs,” says Marc Thiriet, Energy Business Director, Africa at Wärtsilä Energy.
“Mining operations are under dual pressure to maintain maximum uptime while actively charting a path toward decarbonisation. By deploying multiple smaller engine-generating sets instead of a single large unit, we enable the plant to match fluctuating load demands with high precision, maximising fuel efficiency and reducing emissions.
Critically, these engines feature the starting flexibility required to balance the intermittent nature of solar or wind power, thereby complimenting Fortuna Mining’s future plans to introduce renewables to this microgrid strengthening the mines operational stability.”
The Wärtsilä equipment is scheduled for delivery in March 2027, and the power plant is expected to be operational by the end of that year.