The website for the Flex-Box Smart Kit hasn't been updated with the good news, but it's out there: the EPA has certified the ethanol-conversion system designed by the Chicago-based Flex Fuel U.S ...

Ceres will work with Range Fuels to make the biofuel over the next few years (this is a test after all, not a commercial endeavor just yet). The biorefinery will mostly make cellulosic ethanol ...