Our plant was build by local investors so local farmers could benefit from the increased value of the corn they grow. Constru ... ction began in 2001 and during our run up to full capacity, the CO2 plant was built in order to add CO2 and dry ice as co-products. In 2004 the plant expanded to create 30 million gallons of ethanol yearly.Ace Ethanol acquired all Utica Energy facilities in Oshkosh and Green Bay in 2013. Ace Ethanol is focused on safety and continuous improvement. read more