About the Lunar Program

At the lunar pole, the usual thermal logic inverts. Waste heat is not a liability there. It is the feedstock.

The Inversion

At the lunar pole, the constraint is not how to reject heat but how to generate it cheaply enough to drive in-situ resource utilization (ISRU) at scale. Existing proposals anchor on heat sources whose only product is heat: RTGs, fission reactors, solar concentrators. None carry an independent revenue mechanism.

Centradiant's lunar program places a revenue-generating GPU compute facility at the head of the ISRU cascade. Compute revenue funds the infrastructure. Waste heat, at 90 °C, drives water extraction, an organic Rankine cycle for backup power, and regolith thermal energy storage.

Why the Pole

Connecting Ridge (89.44°S, 222.69°E), near Shackleton crater, receives roughly 85 to 93% annual solar illumination. Permanently Shadowed Regions immediately adjacent sit at 40 to 100 K, providing a passive cryogenic sink for radiator overflow and cold-trap condensation, and a passive store for liquid oxygen at around 80 K. Few locations on the Moon offer this combination.

An Independent Program

This lunar program is developed and funded separately from Centradiant's orbital thermal work, on its own timeline and toward its own customers. It does not depend on the orbital program and does not rely on any of its performance figures. It is presented here on its own terms and reviewed against the published lunar-ISRU literature.