Where gas is not available and the grid is weak, heavy fuel oil engines remain one of the most practical ways to deliver firm baseload. They tolerate imperfect fuel, run efficiently at high load and suit utility and mining duty alike. The key is building a complete station, not just buying engines.
A station, not a genset
Engines and generators
Medium-speed HFO engines sized for continuous duty at your site.
Fuel treatment
Heated storage, separators, booster modules and fuel quality checks.
Electrical
Switchgear, transformers, protection and grid or island controls.
Auxiliaries
Cooling, compressed air, black-start and growth bays for future units.
Utility or mining baseload
Utility stations follow dispatch and grid code; mining stations follow production and must run as an island. Both need N+1 redundancy, reliable fuel supply and trained operators. See HFO generators in USP&E inventory.
Secure your fuel before the engines ship
Confirm supply, delivery route, storage days and quality testing before equipment leaves port. Wet-season logistics can cut road access for weeks, so plan fuel autonomy accordingly.
O&M continuity after COD
HFO stations reward disciplined maintenance. USP&E O&M covers operations, planned maintenance, overhauls, spares and training. In Mali, USP&E restored a 100+ MW engine plant to about 95% availability.
Plan a path to gas
If regional gas may arrive later, choose dual-fuel capable engines where possible and leave space for gas treatment and future turbine blocks. Read our guide to HFO-to-gas transitions.
Proof from recent work
Mining · Mali
Barrick Gold, Loulo-Gounkoto
USP&E refurbished the 104 MW power station, rebuilding more than 80 MW of Caterpillar CM32 engines and adding new zero-hour capacity.
O&M · Mali
Power plant recovery, Mali
USP&E took over a 100+ MW plant of 15 Caterpillar CM32 engines, restored availability to about 95% and cut maintenance cost per engine by 66%.
Mining · Mali
Resolute Mining, Syama
USP&E installed and operated a 30 MW Caterpillar power station for the Syama gold mine.
Why owners choose USP&E
USP&E is a full-service engineering, EPC and O&M company, not a broker. One team designs, builds and runs your plant, so nothing falls between contracts.
Common questions
Are new HFO generators still relevant for African baseload?
Yes, where gas is not available and the grid is weak. HFO engines deliver firm, efficient baseload when the fuel system and maintenance are done properly.
What belongs in an HFO station design?
Engines, fuel treatment, storage, electrical systems, cooling, compressed air, black-start and room to grow.
How do HFO stations relate to gas turbines later?
Many owners plan dual-fuel engines and reserve space so gas turbine blocks can be added when gas arrives.
Where do we start?
Send your load, site, fuel access and target date to a USP&E engineer.
Facing a power challenge in Africa?
Tell us your load, fuel and timeline. An engineer will come back with options, not a sales pitch.