The Renewables Obligation Order 2009, as amended by the Renewables Obligation (Amendment) Order 2011, sets out the 60% greenhouse gas (GHG) emissions savings standard for the use of solid biomass in power or CHP generators. This states the standard as 79.2 grams carbon dioxide equivalent (CO2 eq) for one mega joule of electricity generated using solid biomass.Subject to certain exceptions for microgenerators or the use of waste, CHP generators receiving support under the renewables obligation for electricity generated using solid biomass must report against this standard.