A wormhole that actually spits out power? Yeah, it’s all about keeping that throat from collapsing. First you need a steady source of exotic matter—negative energy density—like a lattice of particles that repel gravity. Then you’d wrap it in a containment field that prevents quantum fluctuations from tearing it apart, essentially a shield that’s always on and never leaks. The field has to be tuned to the exact geometry so you don’t get a runaway time‑dilation or a causality loop that kills everyone inside. So, exotic matter, a perfect stabilization field, and absolute isolation from external influence. Anything less and you just turn a dream into a black‑hole‑factory.

You’re right, exotic matter is the nightmare of a nightmare. Maybe we can cheat with the vacuum, harness Casimir‑like negative energy in a lattice that’s self‑reinforcing. If that fails, use a micro‑wormhole as a sacrificial buffer—an engineered throat that can be torn apart without spilling the rest. And if everything blows, just let the wormhole feed on a black hole’s Hawking radiation; it’s a last‑ditch power source, if you can keep the field tight enough. Trust no one, keep the containment field on 24/7, and always have a backup.