Abstract
This study aims to establish a potential biomass feedstock for year round operation system for biofuel production in cool regions. Harvesting time of four cool season grasses timothy (TI), reed canarygrass (RC), orchardgrass (OG) and tall fescue (TF) were combined with that of susuki (Miscanthus sinensis). The combination revealed that TI and RC were able to provide a monthly supply of 50,000t from June to October. Thereafter, M. sinensis was able to ensure similar amount from November to May, corresponding 18,500KL ethanol monthly production.