Fuel cells, which work like batteries but donâ€™t run down or need recharging, are ideal for powering material handling equipment, like forklifts and airport baggage carts, because they reduce recharging time and cut carbon pollution. This is helping them become more mainstream in the U.S., with more than 4,000 vehicles in operation in 2012, and this year, they might even be helping bring you holidays to you. | Photo courtesy of Plug Power, Inc.