It can, and for many mines it is the best fit. This page explains how EPCM works for an HFO power plant, what the mine keeps control of, and where the risks sit.
Why Mines Choose EPCM for Power
A mine’s power demand often changes as the project develops. The mine plan is revised, the processing route is optimised, a second pit is added. Under EPCM, the owner can adjust the power plant scope as those decisions are made, without renegotiating a lump sum contract each time.
EPCM also lets the mine buy long-lead items such as engines and transformers early, sometimes before the full design is finished. And it keeps the power plant inside the mine’s own project controls, using the same reporting, safety systems and approval routes as the rest of the build.
What the EPCM Contractor Does
- Engineering: site layout, engine hall, fuel oil treatment and storage, cooling, electrical systems and controls.
- Procurement management: specifications, tenders, bid evaluation and expediting for engines, auxiliaries and balance of plant, with contracts signed by the mine.
- Construction management: supervising civil, mechanical and electrical contractors, managing interfaces, quality and safety on site.
- Commissioning management: planning and leading tests through to reliability runs and handover.
- Cost and schedule control: forecasting, change management and reporting to the owner.
What the Mine Keeps
Under EPCM the mine owns more risk than under EPC. It holds the supply and works contracts, so a late engine delivery or a contractor dispute lands on the owner, even though the EPCM firm manages it. Cost overruns are the owner’s to fund. The mine must also staff an owner’s team able to make decisions quickly.
In exchange, the mine gets transparency on every contract, control over equipment choices, and the freedom to change scope. Mines with strong project teams often prefer that balance. Those that want a single fixed price may be better served by EPC; our page on HFO power station EPC covers that route.
HFO-Specific Engineering the EPCM Team Must Get Right
HFO plants have systems a diesel or gas plant does not. The fuel must be heated, cleaned by separators and kept at the right viscosity all the way to the engines. Storage tanks need heating and careful drainage. Sludge from the separators must be handled and disposed of properly. Each of these has caught out teams more used to cleaner fuels.
| System | Why it matters on HFO |
|---|---|
| Fuel unloading and storage | Heated tanks, bunding, drainage and sampling |
| Fuel treatment | Separators, heaters and viscosity control protect the engines |
| Engine selection | Medium-speed engines rated for HFO, such as Wartsila, Caterpillar MaK or Bergen |
| Cooling and heat recovery | Waste heat can warm fuel and buildings |
| Emissions and waste | Stack design, sludge handling, oily water treatment |
From Construction to Operation
Commissioning an HFO plant is staged: engines first run on light fuel, then move to HFO once the fuel system is proven. Our page on proving an HFO station at commissioning explains the tests. The operating contract should be decided before commissioning ends, so the O&M team takes part in the tests; see O&M after EPC handover.
USP&E manages HFO power plants for mines under EPC and EPCM, supplies engines from its Wartsila, Caterpillar MaK and Bergen inventory as an independent seller and servicer, and can operate the plant afterwards. The company has 150+ power projects in 45+ countries and its quality and safety systems are certified to ISO 9001 and ISO 45001. Read about USP&E’s mining power work.
EPCM for mine power plants
Is EPCM cheaper than EPC for an HFO plant?
It can be, because the owner does not pay a contractor’s full risk premium. But the owner carries overruns, so the outcome depends on scope control and the strength of the owner’s team.
Can engines be bought before the design is finished?
Yes. EPCM makes it easier for the mine to place early orders for long-lead items such as engines and transformers.
Who signs the construction contracts under EPCM?
The mine, as owner. The EPCM firm prepares, tenders and manages them on the mine’s behalf.
Can the EPCM firm also run the plant?
Yes. USP&E can move from EPCM into an O&M contract, which keeps knowledge of the plant in one team.
Discuss Delivery for Your Mine
Tell USP&E about the mine’s load, location and project setup, and we will recommend EPC or EPCM for the power plant. View HFO generators in stock, or call +27 10 822 2324 or email info@uspeglobal.com.
Powering Possibility. Built for the Frontier.