Addressing growing power shortages in south Afghanistan

Multi-National Base Tarin Kot is located in south central Afghanistan's volatile and remote Uruzgan province, approximately 120 kilometers due north of Kandahar City.

Challenge
The power requirements on this base were unique, requiring conjoined but separate 50- and 60-Hertz plants and distribution systems. Due to the base’s unique power systems, the U.S. Army Corps of Engineers sought a solution to its growing power shortages.

Solution
Louis Berger designed, constructed, operated and maintained a customized solution that joined the two power plants operating at different frequencies. The project included:

  • A 9.6 MW installed 50-Hertz plant servicing Australian and other facilities at 11 kV with 10 Cummins QSK60 gensets.
  • A 6.3 MW installed 60-Hertz plant servicing U.S. facilities at 13.8 kV, comprised of seven DFLE 1500 gensets.
  • Cummins PowerCommand® power management system for both plants.
  • 11-kV primary distribution with 11 power switching centers (PSCs) and 28 substations.
  • 13.8 kV distribution with eight PSCs employing S&C Vista equipment, 30 substations and one 60-50 Hertz frequency converter.
  • 9.6 kilometers combined underground distribution length.
  • A 50,000-gallon fuel storage and supply system servicing both plants.