Mr. Se?n Armstrong:

The Department funds various types of works, including external insulation, cavity wall insulation and internal insulation, and local authorities select the dwellings they wish to retrofit. The Department encourages local authorities to take a wide range of dwellings and not to cherry-pick high-performing dwellings and just put cavity wall and attic insulation in them. The average departmental grant is approximately €33,000. There is also 10% for project management fees, bringing the average total grant for each dwelling to €36,000. That can increase to €48,800 depending on dwelling type and complexity. The Department has found that the average figure works for local authorities across the various types of housing.

Aggregation is about marketing retrofits to private homeowners while the local authority retrofit programme is taking place, with a co-ordinating body to take responsibility for the grant and, possibly, the local authority houses and for retrofitting dwellings in an area. So-----