The X Group is a multiplanetary energy and industrial conglomerate headquartered in Hellas Planitia, Mars. It was formed out of SpaceX and X-Power by X Musk after the death of his father Elon Musk, the eccentric trillionaire who founded and maintained control of both companies until his death. Their highest revenue product lines are spacecraft and satellite manufacture and launch services; off world power and water supply services; and navigation, propulsion management, and e-commerce synths.

Global energy supply was the first of the hectotrillion dollar markets on Earth. The company Tesla was an automobile and energy company controlled by Elon Musk, and their Tesla Energy division owned the IP for a very high conversion efficiency rectenna. At the same time SpaceX controlled the majority of the world's launch, communications satellite, and in-orbit assembly markets. Their in-orbit assembly required giant space based solar power plants, and SpaceX had many manufacturing plants that were able to produce ground based antenna for their telecommunications business, Starlink. They were thus able to quickly scale up manufacture of rectenna to assist in post Khan recovery, and the economies of scale from combining their orbital and ground based assembly businesses soon allowed them to supply base load power at comparable cost to fission based nuclear power. X-Power was made an independent company in 172 BFC, although it continued to work in tandem with SpaceX on many projects such as laser ship pushing. Due to intense competition from Semiotican in the orbital manufacturing market of the 100 BFCs, X Musk re-integrated X-Power into the greater X Group in order to extract greater efficiencies from the business.