https://www.keystone-energy.in/blog Technical writing on torrefaction, biomass co-firing and waste-to-energy plant delivery in India. en-in https://www.keystone-energy.in/blog/biomass-co-firing-mandate https://www.keystone-energy.in/blog/biomass-co-firing-mandate India's biomass co-firing mandate rose to 7% from FY 2025-26 for all coal-based thermal power plants. What the policy requires, why raw pellets stall around 10%, and the calorific values of torrefied fuel by feedstock. 2026-08-30