Including the closely related term deep retrofit.
…. 363,534 85 / 668 / 2030 Housing R8 Whole house deep retrofit to net zero energy standard (eg Energiesprong). Including heat pump, solar PV, battery storage and space heating demand <30 kWh per m2 per pa. 379,044 88 / 697 / 2030 Housing R9 Assumed package of loft insulation, floor insulation, triple glazing and air tightness and ventilation…
… measures. 819,342 191 / 1,506 / 2030 Housing R10 Shared ambient loop heat pumps. 7,773,573 1,222 / 36,176 / 2035 Housing R11 Individual ASHP 6kW and energy efficiency. 2,329,930 378 / 10,405 / 2035 Housing R12 Individual ASHP and energy efficiency. 5,855,879 939 / 26,564 / 2035 Housing R13 Deep retrofit, ASHP, Solar PV and Battery storage. 5,119,672 941 / 18,774 / 2035 Housing…