Best in Brief
McKinsey Quarterly: Fuelling the cars of tomorrow
Lance A. EaleyandGlenn A. Mercer
Fuel cells have a number of advantages over the combustion engine. In converting hydrogen and air into electricity and water, they are clean at the exhaust and use fewer resources along the whole chain, from production of the fuel to the running of the car. Whereas the combustion engine emits greenhouse gases and drives an alternator to meet electrical needs, incurring parasitic losses in efficiency, a fuel cell emits no carbon dioxide and the electricity is directly used to power the motors and...