Geita Gold Mine, Tanzania
Geita Gold Mine + Wärtsilä

Reference case

Reliable, Off Grid Power

When Geita Gold Mine required a highly reliable power generation solution to support its growing operations, Wärtsilä provided a turnkey engineering, procurement and construction (EPC) solution and will take care of ongoing operation and maintenance (O&M). This integrated service ensures an uninterrupted off-grid power supply, eliminating revenue losses from power shortages.

Geita Gold Mine, situated in the Lake Victoria gold fields of north-western Tanzania, is a flagship mine of AngloGold Ashanti, the world’s third-largest gold mining company based on production. To support its growing operations as it transitioned from an open-pit setup to underground mining and avoid revenue losses from production interruption, the mine needed a reliable power source that would remain available around the clock.

WhoGeita Gold Mine
What40MW power plant
WhereTanzania
HowEPC solution

This is what we achieved

40MW

Power Plant

10 Year

O&M Agreement

$2 Million

Fuel savings in 2019

Wärtsilä’s ability to provide reliable, cost-efficient power generation therefore makes them an important partner for us. Knowing that Wärtsilä is taking good care of our power needs means we have one less thing to worry about.

Oliver Milambo, Commodity Manager, AngloGold Ashanti

How we did it

Challenge icon

Challenge

  • Minimise cost of inputs
  • Reliable power generation in an off-grid location
  • Minimise production losses caused by power shortages
Solution icon

Solution

  • 4 x Wärtsilä 32TS engine generating sets
  • O&M agreement including immediate repairs in the case of breakdown
  • On-schedule EPC plant delivery along with lifecycle solutions
Benefit icon

Benefit

  • Fuel efficiency improvement of around 4%, leading to approximately $2 million USD of fuel savings in 2019
  • Cost-effective power plant operations and minimised downtime of the mine, meaning no lost revenue caused by power outages
  • Reliable power source and uninterrupted electrical supply

The main details

Customer
AngloGold Ashanti
Solution
Wärtsilä 40 MW power plant with a 10-year O&M agreement
Operating mode
Baseload
Gensets
4 x Wärtsilä 32TS
Total output
 40 MW
Fuel
Light fuel oil (LFO)
Delivery
February 2018


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