The Prime Power Production Specialist, with an associated ASI, supervises, operates, installs, maintains, and repairs electrical power plants and distribution equipment worldwide. The generating units are primarily diesel or gas turbine engine-driven models capable of producing 750 kW to 4,500 kW at 2400 or 4160 volts. Power plant operator duties include procedures for start-up, operation, monitoring, operator maintenance, and shutdown of power plant equipment and auxiliary systems. Maintenance duties include inspecting, testing, maintenance, and repair (organizational, direct and general support) support of Prime Power Program generation and distribution equipment and associated support system/equipment.
Normal progression for the Prime Power Production Specialist (see Figure 2-2) is from 21P20 to 21P40 for grades E-5 to E-7. After achieving the grade of E-7 (21P40), competition is with all the other soldiers in the General Engineering Career Management Field (CMF) for promotion to E-8 in MOS 21X50.
See DA PAM 611-21 for details.