Summary judgment for defendant affirmed. Defendant met its initial burden of disproving causation, a necessary element of plaintiffs’ claims, by evidence showing that (a) stray voltage must exceed certain levels to be felt by a human being and that the voltages in plaintiffs’ home were far lower, (b) a person would receive a shock only by touching surfaces with differing voltages and there were none in plaintiffs’ house, and (c) that the shocks plaintiffs complained of could have been caused by a number of things other than defendant’s nearby transformer substation. Plaintiffs failed to present any evidence to overcome the defendant’s showing or create a triable issue of fact as to causation.