Parasitic transients are less likely by using AC transmission. Similarities between Barbosa & Leal Earth Captor, an electromechanical watt-hour meter, Tesla's 1931 demonstration of his modifications to a Pierce-Arrow luxury car, and his Special Tri-Metal Generator.

The likelihood of parasitic transients arising in transmission lines can be reduced by sending Alternating, rather than Direct, amperage along the line. This has been documented, historically, with the advent of Telegraph Service powered by galvanic Earth batteries in the 1800s, and the DC transmission system of Thomas Edison in New York city during the early 1900s heightening the probability of parasitic transients taking over the power grid. Tesla's AC transmission system rarely succumbed to this anomaly. Thus, although Barbosa and Leal's Earth Captor can accommodate either DC or AC, AC is preferable for safety's sake.

On another note...

Barbosa and Leal's Earth Captor has various similarities with Tesla's Tri-Metal Generator, his demonstration of a 1931 Pierce-Arrow and an electromechanical watt-hour meter. These similarities are discussed in this video...