The hotel/convention center includes enough parking garages and wide hallways to accommodate several large groups at a time.

Manning Air Products & Chemical’s booth in the exhibit hall is Bruce Luff. He moved when the lights really went out (see below).

When the hall’s ceiling lights dimmed so attendees could move to a curtained area to hear a paper presentation, Bruce moved too.

Horizon Fuel Cell Technologies was the first company to commercialize fuel cell consumer products. They now serve 60 countries.

Pdc Machines Inc. of Warminster, PA, is the world’s leading maker of diaphragm compressors and equipment, says Carl Houper.

A Toyota SunHydro Van was on display in the exhibit hall. It’s been a decade since the Prius was introduced to a million happy drivers.

Editors of FCT magazine: Jo Chesworth, who took the pictures for this two-page spread, and husband Tom, who makes her laugh.

A Mercedes-Benz F-CELL, known as “the unplugged electric vehicle,” can be refueled in about three minutes.

Manfred Greisel, engineeer with Wenger Engineering GmbH of Ulm, Germany, is ready to field questions from visitors to his booth.

David Mikoryak, senior V.P. of marketing for Proterra Inc. of Golden, Colorado, has his picture taken with one of their buses.

Owen Hopkins of Entegris accidentally put his face in the way of a face on the sign behind him which made Tom Mancino laugh.

Rebecca Markillie of ITM Power based in Sheffield, UK, answers a booth visitor’s questions about energy storage and clean fuel.

The Linde Group’s Dave Read in a blue T-shirt over a darker blue dress shirt waits with Mike Ciotti for a question from a passerby.

A two-tone Chevrolet fuel cell van has its hood up to show visitors in the exhibit hall what lies inside.

Conference attendees get a chance to test-drive or ride in fuel cell and hydrogen cars and a CT Transit bus in the hotel’s drop-off lot.