I had to ask a friend of mine a question who happens to be in the Electrical trades, and then he contacted an Engineer for A/C electric. All you who think we are gonna power the planet with wind and solar? HAHAHA! If you had to use solar panels to power 1 Eagles game for a 4 hour period at Lincoln stadium, you would need to cover ALL of Cumberland County with solar panels and have them in full sun to keep the lights on. You silly people, Our world will look like a tin foil map if you have your way! Look how many trees are cut down now?