In theory you can setup electricity intensive operations that can use extra energy and power down when supply is tight. Things like water desalination or hydrogen production. You have the problem of capital not being used but desal plants are often cycled off already.
Everything on the military is classified. Basic ass radios from the 80s are top secret, classified just means they don’t want enemies to know the exact specifications of their equipment.
You can’t use ship style because those use weapons-grade material. It’s more compact but not something you can use for civilian designs. The design isn’t complex, it just uses higher energy density material.
Yeah that’s pretty shit.
You just need a big dig.