Adds one more (faster but more expensive) tier of Electric furnace, Oil refinery, Chemical plant, Assembling machine, Long handed inserter, Lab, Pumpjack, Underground pipe, Offshore pump, Storage tank, Transport belt, Electric mining drill, Roboport and Centrifuge. You can enable/disable any of these in mod settings as well as change both speed and energy usage.
Mods introducing new content into the game.