From Abigail James' You Tube channel (@popculturescientist): The Problem With Zero-Point Energy
...What is zero-point energy, and could it really power an advanced civilisation? Short answer is no, but It's still really fun scifi. 

Stargate Atlantis introduced Zero Point Modules (ZPMs) as one of the most iconic technologies in science fiction. They extract energy from an artificial region of spacetime, providing enormous amounts of power while still obeying the rules of thermodynamics within the show's fictional universe.