This lead-free fuel requirement, in turn, significantly reduces the amount of lead (and other metal additives) in the atmosphere.

Rather than buying the fuel cells, Whole Foods reduced its risk with a 10-year lease, which includes a requirement that the technology produce at least a certain amount of power.

Due to increasingly stringent regulations for environmental protection purpose, the requirement for the productive technology of the low sulfur and ultra-low sulfur clean fuel is getting higher.