Note 18:

The installed cost of insulation & secondary glazing years will be recovered in full over 20 years by the SCF from the owners of the domestic properties which require insulation improvement by means of annual installed cost contributions with zero interest payments. If necessary, the annual payments can be lower in the early years and higher in the later years over the 20 years duration of the repayments. These annual repayments of the installed insulation / secondary glazing cost are likely to be self-financing since the improvement in the insulation performance of the property will result in a reduction in the required supply of heat energy.