Greenbelt Resources Corporation has agreed to perform feedstock testing with Central Coast Wine Services (CCWS) to test various streams of wastes generated in the winemaking process. The wastes will be tested for potential use as feedstock for PRECO, Greenbelt's 'Paso Robles ECOsystem' project, a local waste-to-energy system. Wastes with successful results will be locally converted by Greenbelt's provenECOsystem technology into sellable bioproducts such as bioethanol, feed and fertilizer. Of particular interest in all of Greenbelt's feedstock testing is the potential production of a high value human protein source to help meet global demand for more protein. As the wine industry continues to further emphasize sustainability as an operational goal, CCWS has taken a leading role. CCWS is working with Greenbelt to test the viability of taking various streams of remaining ethanol containing elements, such as by-products of the fermentation process, and converting it into high-grade bioethanol. Thus, they are turning what has been considered waste into economically viable, greener and more sustainable bioproducts.