I’m currently in the process of installing such a device on my rooftop. 😉
Initially i’m interested in leading the wires through a container of water, isolating one of the electrodes in an insulated ceramic tube, like these scientists from the Max Planck institute did:
Long-living plasmoids from an atmospheric water discharge
(excerpt attached with this post, original link: http://iopscience.iop.org/0963-0252/17/2/024014)
I was struck when i saw this. Not by lightning. Rather i was struck by the striking resemblance between this experimental setup and the DPF (cf. Figure 1. in the paper).
