A disaster occurred!
Ves just wanted to clean up one of the old skeletons in his closet. Who knew that his method of starving this ghost of all of her spiritual sustenance would result in such an illogical outcome?
When a mech no longer received energy from its power reactor, the machine demanding systems inevitably shut down. It didn't matter whether it was a bottom-tier third-class mech or a cutting-edge first-class multipurpose mech. Every single war weapon could only unleash its destructive potential when it was sustained with a sufficient amount of juice.
The same went for starships. It took an incredible amount of energy to propel millions if not billions of tons of metal and composites from one location to another. It also took even more energy to power their artificial gravity, life support systems, energy shielding and potentially warship-grade weapon systems.