“... how clean the environment would be of one day all planes flu by electric or solar power.”
Where is the electricity coming from?
‘Where is the electricity coming from?”
REALLY long extension cords.
I believe the law of diminishing returns would apply. Unless there were some miracle innovation in the production or storage of electricity, an electrically powered aircraft would likely be limited to something sized between an ultralite and a Cessna 172. It would be a few generations before something big enough to haul a comparable number of people to airliners. Batteries get heavy, as are electric motors. Maybe the integration of batteries into the airframe, like fuel cells in the wings might be the way, but weight would still also be a major factor.
Rainbows and good feelings, of course!
Obviously from power plants. However, if power is produced at central locations, instead of diffused throughout the country, it would a lot easier to contain the pollution that is a by-product.
“Where is the electricity coming from?”
From three possible sources:
1. A really long extension cord.
2. A magic battery.
3. A fuel cell orders of magnitude better than now exist.
Look, LOOK!
A Flying Unicorn!
Pixie dust, of course!