The Apollo space program relied on hydrogen fuel cells, which work by stripping electrons from hydrogen atoms.
The new rules should help promote hydrogen fuel cell vehicles as well, regulators said.
FORBES: California Sets New Rules To Boost Zero-Emission Car Sales
Mr. Marchionne held up hydrogen fuel-cell propulsion as an example of faddish technology that proved impractical.
WSJ: Fiat 500e Review: The Bosses Don't Love It, but You Will
Battery power is one alternative, but so are hydrogen fuel cells, which offer greater range.
But there are skeptics who think that hydrogen fuel-cell supporters are being wildly unrealistic.
It is powered by a hydrogen fuel-cell engine, which converts hydrogen gas into energy.
Some even employ proton exchange membranes that move charge around the way a hydrogen fuel cell does.
Elliott argues that buying credits from him is far cheaper for automakers than building hydrogen fuel cell prototypes.
In the long-term, it could have a glittering future for it leads the world in pollution-free hydrogen fuel-cell cars.
And in buses on the U.S.' West Coast, we're testing hydrogen fuel-cell engines, designed to replace today's oil-burning engines.
Then he mentioned cars powered by hydrogen fuel cells that emit only water.
And United Technologies, which makes Sikorsky helicopters, has flown a large model electric-helicopter powered by a hydrogen fuel cell.
Even President Obama has nixed federal funding for hydrogen fuel cells, while Ford and Renault recently halted their own programs.
The hype about hydrogen fuel cell cars has died down in the last year or so, but Honda hasn't noticed.
EVs, even hydrogen fuel cell vehicles, are a blast: you get sportiness along with a lifestyle statement about conserving resources.
The idea is to plug in electric and hydrogen fuel cell vehicles to the buildings to power up our vehicles.
So, a hydrogen fuel-cell car even running ... on hydrogen derived from natural gas cuts that carbon emission by 60%.
Red giant refers to a late phase in a star's life when it has begun to exhaust its hydrogen fuel.
And also hydrogen fuel cell vehicles where the hydrogen is produced by wind and solar power and also hydroelectric geothermal power.
Or vote for subsidies for advanced biofuels, hydrogen fuel cells or batteries.
FORBES: Why Is This So Hard? Solar Power Doesn't Replace Oil
The investment above is recommended in the Hydrogen Fuel Cell Investor.
Hydrogen fuel cell cars need hydrogen and, even in California, there are only around 25 filling stations in the whole of the state.
In a hydrogen fuel cell car, hydrogen gets drawn through a catalytic membrane: an electron gets stripped from the hydrogen to power the car.
The only cars getting these credits now are hydrogen fuel cell prototypes that carmakers spend millions building, then offer to governments, universities and, rarely, individuals.
In just a few billion years from now, it will use up all of its hydrogen fuel and will swell to become a red giant.
Either way, the hydrogen fuel finishes up costing way too much.
Still, it's not too hard to imagine a future where the majority of autos run on electrons -- whether they're pushed from batteries or hydrogen fuel cells.
In other energy news, a team of researchers at Harvard has created an amazing hydrogen fuel cell that keeps running even after its fuel supply is exhausted.
Of the world's automakers, General Motors is the most resolute champion of a future filled with vehicles powered by hydrogen fuel cells that emit only water as exhaust.
First it was hydrogen fuel-cells, then ethanol-powered cars, then plug-ins.
FORBES: How Cars Will Change If America Becomes The New Saudi Arabia
应用推荐