Last May, we wrote about the E-Fuel's innovative Efuel100 Micro Fueler, which turns alcohol into ethanol. Southern California brewery Sierra Nevada has announced a partnership with E-Fuel to turn their beer waste into ethanol using the Efuel100 Micro Fueler.
The ethanol will primarily be used to power the on-site vehicles at Sierra Nevada, but it's possible that the ethanol would be made available for employees or the general public.
Sierra Nevada has already done quite a bit for the environment. According to Tree Hugger, Sierra Nevada sells 1.6 million gallons of beer waste to farmers annually to use as dairy feed.