Peterbilt

It has been a busy September for the natural gas vehicle (NGV) sector, led by the still-evolving timeline on a decision by Vancouver, BC-based Westport Innovations on when to end production of its venerable 15-liter NGV truck engine that has been a centerpiece of its more than a decade-long involvement in natural gas transportation. The company already is working on an up-to-date model with newer and better technology.