US Army Fort Huachuca
1884 Crushing St.
Ft. Huachuca, AZ 85613

Initial Mobilization / Completion Date

4/23/2018 - TBD

Contract Amount:



Army - Fort Huachuca

Job Number:


General Contractor

GC: Schneider Electric Buildings
PM: Cesar Cortes

Sub: Koontz Electric Co., Inc.
PM: James Zimmerman

The project included the turnkey design of two (2) megawatt (MV) natural gas-fired reciprocating engines in a combined heat and power (CHP) plant to provide electricity for Fort Huachuca’s privatized electric grid and thermal energy for the South and North Plants. The new CHP consisted of the following major equipment systems: Two new 2 MW natural gas-fueled reciprocating engine generators, radiators, cooling tower, boiler, and ancillary equipment for providing power to the distribution grid for 4 MW output total at 13.8 kV. It also consisted of new exterior substation components (switchgear with main breakers), electrical duct bank for interconnection to existing post-distribution grid loop switch, existing South Plant 2000 kVA distribution transformer, interface with the generator switchgear output, and a connection point freestanding 13.8 kV breaker for a portable load bank to exercise and load test the generators. The new exterior was located and a pad-mounted step-down transformer from the base distribution voltage to 480V to a new MCC was provided for electrical distribution to supporting the new mechanical equipment in the South Central Utility Plant, Cooling tower, chiller, pumps, and controls. Koontz also installed circuit breakers, associated circuit feeders, and variable frequency drives for new motors.