Chief Chaos, sorry if I wasn't clear, I was speaking of something actually going wrong at the site of power generation, which results in injury and death, not the results on a population of temporary loss of electrical power.

Disaster would ensue to those "downstream" if a hydroelectric dam structurally failed, through human error or intent or by force of nature, but so far, only nuclear power plants have garnered that dubious honour in their relatively short existence.

The embrace of the technological use of nuclear power, without adequate thought as to the safe disposal of it's horrendous by-product and the rush to sell reactors to other nations, of possibly even less scrupulous infrastructure, is just a little too Werner Von Braun for me.