Steam power
Uncommon17.5%StoryOptional
Start producing electric power by steam engine.
Your first electricity, and you'll get it within minutes. Place an Offshore Pump on water, pipe it into a Boiler, fuel the Boiler with coal or wood, and wire a Steam Engine to the Boiler's steam output. Pops the moment steam power starts flowing. Unmissable in practice - nothing runs without power.