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Fuel Cells

Fuel Cells

Hydrogen fuel cell cars promise pollution-free driving, but will we see them anytime soon?

Point/Counterpoint

Two experts with opposing viewpoints on the future of hydrogen fuel cell cars square off.

Clickable Fuel-Cell Car

Take a look under the hood of a hydrogen fuel cell car and see what makes it go. Try the interactive version—or go to the printable version.

How Fuel Cells Work

You need some hydrogen, some oxygen, a special membrane, a couple of catalysts, and presto—you've got power.

Ask the Expert

Eric Miller of the Hawaii Natural Energy Institute answers viewer questions about hydrogen fuel cells and the newfangled cars that use them.