Despite their utility, candles were expensive, inefficient and often smelled, so few were sorry to abandon them in favor of oil lamps and electricallights.
The electricity generated by a micro-wind turbine is transmitted and stored in a battery before being used to drive home electrical appliances such as lights, LCD monitors and TV sets.
Consumers can help by shutting off unnecessary lights and electrical appliances, minimizing the use of air conditioning and delaying laundry and other activities requiring electricity-consuming appliances until later in the evening.
The performance was all the more respectable because the 23-year-old Italian was forced to drive part of the night-time stage without lights after an electrical problem.
And the videos that they have released are well-lit and well-shot productions, suggesting access either to electrical outlets or to generators to run lights.
California power officials had declared a Stage Two electrical emergency for the fourth day in a row on Thursday, asking residents to turn off Christmas lights during peak usage times.
If he is right, an earthquake will generate enormous electrical currents in the ground precisely the sort of thing that would upset the ionosphere and generate strange lights in the form of lightning-related phenomena.