I read in the config you provide in the JAR file there is a way to add more fuels to burn. It would be good if the mod could generate a config file filled with examples in the config folder instead of hiding it in a JAR file because it's quite hard to notice a hidden config options. And even if I read the config I still not have an idea how can I add more fuels (for example ImmersiveEngineering's Biodiesel).

Sorry about not responding sooner, i somehow missed this issue.

You can make a file in /config/AdvancedGenerators named .config and put in it something like:

recipes {
         turbine-fuel: <fluidname> <value> MJ/mB 
 }

You can get a list of fluids from using /dumpregistry command (it's part of BDLib)

Also there's documentation of the format here and here

https://github.com/bdew/generators/tree/mc-1.7.10/resources/assets/advgenerators/config
That's your examples.

@bdew Can you link the config format here for easier discovery?