It was to be a bright light for all mankind, built in the breadbasket of the reaches of the solar system. Decades of shuttling materials, soil, seeds, and specialists to Ganymede had turned the barren rock into a network of thriving farms and food processing facilities, turning the black between Jupiter and Saturn a little less deadly. Starvation was now no longer among the leading causes of death, and some foodstuffs had even begun to trickle back to Earth, the excess of fully industrialized farming becoming realized far outside the biosphere of Earth.
Scarcity returned in an expected form: the growing network of ag-domes and habitats had turned the power grid on Ganymede into a patchwork of power distribution hubs, generators, portable reactors, and solar panels. There was a need for a proper power plant to run Ganymede. The Pan-Arctic Engineering Cooperative stepped up to the plate, seizing the opportunity to return to the large scale project planning that had founded their organization. There were protests from other polities invested in the Ganymede project, Chinese and Cantonese engineering firms began planning their own reactors. But the discoveries in the cavernous interior of P-AEC Reactor One would preclude all such projects, and pave the way for humanity's expansion across the stars.