You will find a new script in my Blender Addons repository. It’s called lightning_arcs.py and builds on top of the Blender Laplacian Lightning plugin to create configurable arcs of lightning between particles of an object. Three empty objects have to be present in the scene – ELorigin, ELground and ARCheight. The first two are for the Laplacian script, the third one’s Z position determines height of lightning arcs. Furthermore, the Laplacian addon has to be set to generate Single Mesh. Once you add a Particle System to the object of your choice find the “Lightning Arcs” entry using Blender’s Search function (press Space key in scene). Click. Enjoy!