Every summer like clockwork, we have had a few days with high temps and the whirl of air conditioners fill the air. It is a guarenteed recipe for loss of electricity and blackout situations. Please be careful and stock up on batteries and keep a couple of promotional flashlights on hand. One of my favorites is the eco freindly pig generator light, not only is it wicked cute but it does not run on batteries. It works by squeezing the lever to generate energy.