But Heather Tomley, senior environmental specialist at the Port of Long Beach, said companies don't have to have a maritime background to gain the ports' attention.
Yorba Linda, Calif.-based Vycon
has developed a flywheel technology that attaches to yard cranes.
The flywheel system collects energy as cargo containers are lowered and then releases it, helping lift containers.
That reduces the power the diesel engine has to supply, cutting fuel consumption and the release of pollutants.
achieved more than a 25 percent reduction in particulate emissions in California Air Resources Board testing.
has been watching sales of the $150,000 devices grow.