An Expandable Modular Information Technology (EMIT) Facility (EMITF) includes: an EMIT Building Infrastructure (EMITBI) having an initial enclosure that includes: a base pad providing a fixed usable space area on which one or more modular IT components are placed; and a plurality of exterior walls, including at least one removable expansion wall (REW) that enables expansion of the usable space area of the EMITBI; a plurality of modular IT components placed within the EMITBI on the usable space, and which dissipate heat; and a power subsystem electrically coupled to the EMITBI via a power distribution configuration that includes a first power generating component coupled via a power distribution scheme to the power consuming IT components of the EMITBI, where the power subsystem is pre-configured to support additional requirements for power via a power capacity on demand structure, including modular expandability of the power generating components, while maintaining resiliency.