Huge quantity of imported coal is being used in pulverised coal-fired power stations. Raw biomass can not be used in the pulverised coal mills as they are difficult to grind into fine powder due to caking property of raw biomass. However biomass can be used after Torrefaction in the pulverised coal mills for replacing imported coal. North west and southern regions can replace imported coal use with torrefied biomass where surplus agriculture/crop residual biomass is available. Biomass power plants can also get extra income by selling the Renewable Purchase Certificates (RPC).