Heating tower can unlock steam turbine.
I think acid neutralisation should also unlock the steam turbine.
Can you add it in the mod?

Hello, @_CodeGreen, It has been over a week since I submitted my suggestion. Please provide an answer as to whether this feature can be added.

Sorry, I've been busy lately and thought I already responded to this.
Steam turbines are not necessarily required to go to Vulcanus in vanilla Space Age, and I noticed that not having them made for an interesting challenge for power in the early game, while also giving some incentive to visit Nauvis (which is mostly useless when starting on another planet).
I may add a mod setting to add steam turbines for those who want it, but it can also be forcibly unlocked early with this command:
/c game.player.force.recipes["steam-turbine"].enabled = true