The Massachusetts Department of Energy Resources released a new set of strict standards for biomass in early May that have the potential to cut subsidies for developing plants. According to these new requirements, all qualifying biomass plants must generate power at 50 percent efficiency to qualify for one-half Renewable Energy credit (REC) per MWh, and 60 percent for one full REC. These new standards are up from the previous 25 percent efficiency requirements. Plants will also be required to analyze lifecycle emissions to demonstrate at least 50 percent reductions over 20 years.