EasyJet's energy-efficient plane concept could save millions on fuel

Low-cost airlines have mastered the art of saving money. UK-based EasyJet unveiled a new concept on Tuesday that could save millions of dollars on fuel while also recycling water for passengers.

The idea is reminiscent of "toilet-to-tap" systems, although the wastewater in this case would be from hydrogen fuel cells (not the plane's lavatory).

A hydrogen fuel cell stowed in the aircraft's hold would capture energy from the aircraft brakes during landing. That energy would then charge lightweight batteries while the plane is on the ground, and those batteries would be tapped during taxiing to avoid using the jet engines. Read more...