[Source] Sun Generator was a technology used by the Eternal Empire of Zakuul. Massive power generator towers protecting miniature suns, Sun Generators provided power to the technology of the Eternal Empire. They powered the Eternal Fleet warships, Star Fortresses and the Spire on Zakuul. Due to their massive power output, the technology was dangerous to misuse. An overloaded Sun Generator was capable of causing a catastrophic destruction to multiple city blocks, its blast contained enough power to vaporize the entire Star Fortress.