The 5th Annual Bioenergy Day will be held on Wednesday October 18 starting at 9am. The day will include tours of area organizations that using bioenergy including: Lonza - Learn about using wood fires as a fuel through an air aspiration fuel recovery system that uses wood biomass boiler. Minnesota Power's Rapids Energy Center - See how local wood biomass is turned into clean renewable energy. Rapids Energy Center is a cogeneration facility that provides the Blandin Paper Mill with all its steam