Ofgem told us that there are 104 biomass power generators with a generating capacity over 1 MW, and which therefore receive the same level of oversight as Drax.22 In the last year, Ofgem found that 17 of these 104 had breached the support scheme’s sustainability criteria.23 While these non–compliant generators accounted for less than 1% of the power generated by biomass as part of the Renewables Obligation scheme, this level of non–compliance is concerning.24 Strengthening the sustainability rules