Dr. Ciaran Byrne:

I take the Deputy's point about the installers coming in for what is only a half-day or day job and then leaving, but it is like when someone installs a gas boiler and is locked in for 15 years. When someone installs solar, that person spends money for fixing up his or her home on solar instead of retrofitting. There is a benefit, but there would have been a greater benefit from the fabric piece.