The capital investment cost for a switchgrass-fueled ethanol plant with a capocily of 250,000 gallons per year is $6.5 million. The costcapacity factor for this particular plant fochnology is 0.57 for capacities ranghing from 200,000 gallons per year to 550,000 gallont per year. What is the estimated capital immestment for a similiar ethanol plant with at capacily of 500,000 gallons per year? The estimated caphal hvestment for a simitar ethanot plant with a capacity of 500.000 gallons per yoar is 5 (Round to the narost fon thousands.)