Propane company Blue Star Gas says Darren Engle, the company's marketing director, will be presenting the keynote address during the Pacific Propane Annual Convention & Expo later this week in Blaine, Wash.

"I look forward to discussing recent advances in autogas technology because it really is the most cost-effective clean fuel for U.S. fleets on the market, especially in terms of vehicle conversions and fueling infrastructure costs," Engle says.

Blue Star Gas provides fleets on the West Coast with autogas as a partner in the Alliance AutoGas network. In addition to his work with the company, Engle serves as chairman of the Propane Education and Research Council's (PERC) Research and Technology Development Working Group.