This federal contract opportunity solicitation seeks proposals to replace three mission essential systems at Building 600 of the Central Utility Plant on an Air Force base. The solicitation requests proposals to (1) replace transformers and associated grounding and interconnecting lines in the transformer yard, (2) replace eight roof mounted exhaust fans and associated wall louvers and thermostats in the power generation system area, and (3) replace obsolete generator synchronizers, load controllers, generator controller, and the generator operator HMI computer and programming. The solicitation was issued by the 50th Civil Engineer Squadron of the Department of the Air Force Space Command.