Heat and energy system

[slemonide]

Add electron head and electron tail nodes.
Then, add constant electron head, constant electron tail and wire nodes.
The later would be generated as ore, with electron heads being surrounded by electron tails which in turn will be surrounded by wire nodes.

As electron heads travel through the wires, they generate energy which would dissipate in the surrounding environment as heat and/or light. This could be used to grow crops.