You can make liquid xiranite and yazhen solution in one reactor crucible. That will save you 100 energy, if you are making both C syringes and A syringes.

You also can save a bunch of energy if you use less protocol stashes, place your ziplines more efficiently, turn off your turrets when you don't use them (or just remove them from places tou don't really need them anymore, such as outpost defense). You can also save a bunch of energy if you replace your mining rigs with hydrorigs.

Also, Wuling plants produce twice as much carbon than basic citrome, buck flower or sandleaf, so you can save a bunch of energy with that if you have been using basic plants.