Love the mod, but currently there's a pretty serious issue where it throws an error after loading an existing save.
The below error happens when loading a save with fulgurite conductor rods, and also when loading a save that has had the mod enabled and then placing a fulgurite conductor rod.

The mod Fulgurite Synthesis (0.0.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event fulgurite_synthesis::on_tick (ID 0)
__fulgurite_synthesis__/control.lua:50: attempt to index global 'previous_energy' (a nil value)
stack traceback:
    __fulgurite_synthesis__/control.lua:50: in function <__fulgurite_synthesis__/control.lua:43>