Power Generating Station

AEPCO owns and operates Apache Generating Station in Cochise, Ariz. Apache Station has:

  • 605 megawatts of combined gross generating capacity
  • 2 steam units that can burn coal or natural gas, which enhances our flexibility to use the least-cost fuel
  • 1 natural gas-fired boiler
  • 4 gas turbines

From reducing fuel costs to implementing new efficiencies, we are positioning AEPCO to become even more competitive. At the same time, we maintain our strong commitment to reliability and safety.

Approximately 100 employees work in three shifts around the clock at the plant to deliver a reliable source of electric power. As workers retire, we are changing schedules and enhancing efficiencies to allow us to do more with fewer people.

Complying with environmental regulations is a big part of our job. Learn more in our Environment section. The public is invited to enjoy our Apache Station Wildlife Area.

Fast Facts About Steam Units 2 and 3

  • Electric cable: 3.4 million feet, equal to 644 miles
  • Concrete: 43,394 cubic yards, equal to 450 miles of sidewalk
  • Coal storage capacity: 160,000 tons, a 40-day supply
  • Fuel capacity of boilers: up to 98 tons of coal/hour or up to 48 MCF natural gas/hour per each unit
  • Capacity of GE turbine-generators: 194,700 KVA
  • 3,600 RPM
  • 2,400 PSIG
  • Steam generation: 1.3 million lbs/hour at 1,005 F
  • Height of steam units: 192 feet
  • Size of stack: 400 feet tall by 69 feet wide
  • Structural steel in each boiler unit: 2,400 tons