Hey, hopefully this is the right place for this but there seems to be a hidden unchangeable efficiency gain with fusion generators.
If you "charge" a liquid with a boiler and then "discharge" it with a fusion generator, then you'll end up with a net-gain in power from the fusion generator.
Would it be possible to add an efficiency variable in to the fusion generator prototype?
I've also noticed that ElectricEnergySource doesn't have an effectivity var like burner or liquid energy sources do.
FusionGeneratorPrototype efficiency var
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Re: FusionGeneratorPrototype efficiency var
+1, would be nice to have efficiency on fusion generators and ElectricEnergySource as a whole 

coder? i hardly know her!
Re: FusionGeneratorPrototype efficiency var
For electric energy source effectivity, refer to viewtopic.php?p=680553#p680553.Bilka wrote: Wed Sep 10, 2025 11:47 am I've added FusionGeneratorPrototype::effectivity for 2.0.67 just in case it's useful.
I'm an admin over at https://wiki.factorio.com. Feel free to contact me if there's anything wrong (or right) with it.