Solenoid

A tech mod about electromagnetism. You don't burn fuel for power here; you generate it by induction. Spin a magnet past a coil, get current.

It starts with magnetite, the naturally magnetic iron ore. Smelt it into magnets, wind copper into coils, and build a hand-crank generator: right-click to crank, no fuel needed. Lay copper cable to wire it into your machines.

Ore processing works the electromagnetic way too. Crush your ore, then run it through an electromagnetic separator (which actually needs a live magnetic field to function) to pull clean concentrate and double your metal.

Under the hood it's plain Forge Energy, labeled "EMF" in-game, so it runs alongside other FE/RF tech mods.

Still early and actively being built. More machines, better cables, and fuel-free passive generators are on the way.