Still syngas is better than that awfull steam turbine. Why not make rocket fuel?
What's so bad about the steam turbine? Sure, it takes a lot of setup and resources, but I've currently got mine putting out 2K RF/t without any input from me. Though I totally understand if the other ways are way better/more efficient, I only tried the gas turbine and got sick of manually putting propane tubes into tanks XD
Somebody has a good setup of steam generator. The RF production of mine goes up and down to quickly (ex : it generate 150 RF/t and the second after RF drop to 50 RF/t and it cycle every second).
I've converted my gas turbine in steam turbine because I run into a problem with my diamond chopper, suddenly spruce trees around it refuse to growth after several days.
I should replace it by an EI farming station but
@Caithleen said that syngas being nerfed.
RF production on the advanced generator turbines only shows what's actively being used. So depending on what your machines are doing, that could be causing the fluctuation if stuff is turning on and off or whatever.
If not, then it likely means there's an issue in the setup. Steam not being pumped fast enough into the turbine, not enough water going into your heat exchanger, not enough lava, etc.
I have about 15 crucible/pure awesomeite blocks melting cobble into lava, then the lava is pumped into the heat exchanger system. For water I have a transfer pipe with about 15 world interaction upgrades on top of an infinite water setup. Combine that with the actual steam turbine having 2 vibrant turbines and 5 steel turbines, and I've got 2K RF/t going on.
You basically produce more steam by adding more heat exchanger blocks to the heat exchanger multiblock, then supply more lava/water as necessary. And make sure you aren't bottlenecked by the max output of your conduits.