By: Wartsila

Technology group Wärtsilä will supply five Wärtsilä 32 engines for a captive power plant to be installed at the Diamba Sud Gold Project in Senegal. 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 Q2 2026.

The Wärtsilä 32 engine generating set has established a reputation for reliability during 30 years of successful operations, delivering more than 8,000 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, maximizing 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.

Fortuna Mining is a Canadian mining company that is developing the Diamba Sud Gold Project in Senegal. Acquired in September 2023, the Diamba Sud Gold Project is located in the Kenieba – Koudougou Inlier, a geologically significant area, which hosts several major gold deposits in eastern Senegal and western Mali.

Media contact for more information on this release:

Katri Pehkonen
Communications Manager
Wärtsilä Energy
Mob: +358 50 591 6180
katri.pehkonen@wartsila.com

Image caption: Left to right: Hakan Yildiz (Wärtsilä), Paul Maes (Africa Power Services), Marc Thiriet (Wärtsilä), Alrick Theretz (Africa Power Services) and Sameer Poredi (Wärtsilä).
© Wärtsilä Corporation

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Wärtsilä in brief

Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy industries. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 17,900 professionals in 199 locations in 78 countries shape the decarbonisation transformation of our industries across the globe. In 2025, Wärtsilä’s net sales totalled EUR 6.2 billion. Wärtsilä is listed on Nasdaq Helsinki. www.wartsila.com

Africa Power Services in brief

Africa Power Services believes that energy is essential to the success of every project. This is why we take on your energy challenges by developing more efficient and responsible solutions. Our experienced teams will help you during the engineering, procurement, and construction (EPC) of your power plants, rental, training, and much more. Africa Power Services has installed more than 500MW in Africa, including 266MW of hybrid power plants with photovoltaic and BESS.
www.africapowerservices.com

Fortuna Mining in brief

Fortuna Mining Corp. is a Canadian precious metals mining company with three operating mines and a portfolio of exploration projects in Argentina, Côte d’Ivoire, Guinea, Guyana, and Peru, as well as the Diamba Sud Gold Project in Senegal. Sustainability is at the core of our operations and stakeholder relationships. We produce gold and silver while creating long-term shared value through efficient production, environmental stewardship, and social responsibility.
www.fortunamining.com