The Simandou mining power plant project in Guinea is designed to support power supply for mining operations. The project information identifies it as a 25MW mining power plant, with phase-I technical planning around an 18MW / 10.5kV diesel power station and future expansion to 40MW. The system adopts 6 units of medium-speed generator sets rated at 4347kW each.
Project Overview Table
| Project Name | Simandou 25MW Mining Power Plant Project |
| Location | Simandou, Guinea |
| Application | Mining power plant |
| Phase-I System | 18MW / 10.5kV diesel power station according to project notes |
| Future Expansion | Planned expansion to 40MW during phase II |
| Generator Units | 6 units |
| Unit Rating | 4347kW |
| Engine Platform | MAN-9L32/40 medium-speed engine platform / CMP-MAN listed as engine brand in the project table |
| Fuel | Diesel in early stage; heavy fuel oil / biodiesel may be used according to project requirements |
| Power Delivery | 10.5kV generation system with 35kV supply to the mine through 2 × 50MVA, 35/10kV step-up transformers |
| Status | Under site construction / project execution according to the project table |
Project Background
The Simandou mining project requires a dedicated power plant to support phase-I mine construction and operation. In remote mining areas, stable power supply is essential for production equipment, auxiliary facilities, communication systems and site infrastructure. The power station must also consider future capacity expansion as the mining project develops.
SWT Solution
The project is planned with a fixed diesel power station using medium-speed generator sets. The phase-I system adopts a 10.5kV generation design, with generator units connected to sectionalized 10.5kV busbars. Through 2 × 50MVA, 35/10kV step-up transformers, the power station supplies electricity to the mine at 35kV voltage level. The design also considers phase-II expansion, when the power station capacity is planned to increase to 40MW.
Key Features
- Mining power plant solution for a remote large-scale mining project.
- 6 × 4347kW medium-speed generator sets based on MAN-9L32/40 engine platform.
- 5kV generation system with sectionalized busbar arrangement.
- 35kV power supply to the mine through 2 × 50MVA step-up transformers.
- Designed with supporting systems including fuel, lubricating oil, cooling, intake and exhaust, control and electrical systems, and black start system.
Project Value
This project demonstrates SWT’s capability in medium-speed power plant system design and project execution for remote mining applications. Compared with standard generator set supply, mining power plant projects require integrated planning for auxiliary systems, logistics, construction, commissioning and long-term operation under demanding site conditions.
