Home grown fuelAs the call for renewable energy reaches fever pitch, Golden Grain Energy finds a solution growing in Iowa. Kate Sawyer reports. Golden Grain EnergyÔÇÖs performance is not based on a corporate hierarchy perched high in a skyscraper, but firmly rooted in the cornfields of Iowa. Its mission is two-foldÔÇöto meet the nationÔÇÖs growing demand for domestic biofuels and reduce our reliance on foreign oil.