Data from BEIS has revealed that 2,209,321 energy efficiency measures were installed under the Energy Company Obligation (ECO) and Green Deal schemes as of the end of October 2017. BEIS noted that the first seven months of the ECO Help-to-Heat scheme have continued to see fewer measures installed than previous ECO schemes, but the volume of installed measures has so far increased every month, with delivery in October 13% higher than the previous month. Cavity wall insulation accounted for the greatest number of measures installed under all ECO measures at 38%.