The world’s largest retailer has increased the efficiency in its private fleet by 25 percent over the last three years, reducing carbon dioxide emissions and fuel use… and it wants to get even greener in the years to come.
This story from ArkansasBusiness.com says Wal-Mart will test trucks that have diesel-electric hybrid motors and recycle grease from its stores to make biodiesel to run in conventional diesel engines:
“In order to meet our goal of doubling our fleet efficiency, we are taking an active role in the development of these technologies,” Chris Sultemeier, senior vice president of transportation for Wal-Mart Stores, said in a news release. “We look forward to determining if these technologies will help reduce our environmental footprint, are viable for our business and provide a return on investment.”
Among the new technologies it is testing is a full-propulsion Arvin Meritor hybrid that will initially operate in the Detroit area. It is a dual-mode diesel-electric hybrid.
Meanwhile, 15 trucks at its Buckeye, Ariz., distribution center will be converted to run on reclaimed grease fuel made with the waste brown cooking grease from Wal-Mart stores. Other trucks here will operate on an 80/20 blend of biodiesel.
The story goes on to say that Wal-Mart will be using other diesel-electric hybrids and running liquid natural gas in trucks in Dallas; Houston,; Apple Valley, Calif.; Atlanta; Washington D.C.; Baltimore; and in southern California


A Northern New York State auto dealer has become the exclusive installation center of ROUSH Liquid Propane Injection systems in Ford trucks and vans in the Northeastern United States.
According to Green Tech, the inventor of the EFuel100 MicroFueler home ethanol maker has signed on Sierra Nevada Brewing to make ethanol from beer dregs. E-Fuel said that the beer company will start testing EFuel’s refrigerator-sized portable ethanol refineries in the second quarter of this year using discarded beer yeast as a feedstock for ethanol. 
A new initiative was announced at the opening general session of the National Biodiesel Conference Monday –
Awards were presented at the National Biodiesel Conference in San Francisco Monday to people who have helped the industry grow.
National Biodiesel Board Vice Chairman Gary Haer (right) with
Iowa-based Renewable Energy Group (REG) is making more inroads in the Western United States as it has opened a new biodiesel terminal in Southern Colorado.
One of the first companies to realize biodiesel’s potential for both farmers and farm machinery was New Holland, thanks to the influence of Gene Hemphill, manager of North American Industry Affairs for the company, pictured here (right) with 
Rahal Letterman’s number 17 Team Ethanol car driven by Ryan Hunter-Reay won its first race last year at Watkins Glen, N.Y. Hunter-Reay was also named Indy 500 Rookie of the Year, but at this point he has no ride for the 2009 season.
Organized by the Nebraska Ethanol Board, the Emerging Issues Forum is an annual regional conference for ethanol producers, marketers and related industries. Special topics this year will include ethanol policy under the new administration, innovations in corn fractionation, financial and legal issues, the blend wall, and the dynamics of RINs.