Scheme Year 2015-16 2016-17 2017-18 2018-19 2019-20 2020-21 (to date) Referrals received from HES 4,071 8,939 6,799 5,728 5,598 2,929 Completed installations 1,372 5,354 4,903 3,818 3,607 1,273 Cancelled applications 1,402 2,612 2,260 1,901 1,616 612 Customers waiting/booked survey - - - - - 756* Customer...