Mr. Tom Halpin:

That is likely to come about in time, given we are aiming for nearly zero energy buildings. It should be said that the new regulations coming in next year not only bring in near zero as an energy performance requirement for new build - Ireland's building regulations have been advanced all along - but they also bring in the requirement that if a person is renovating more than 25% of a building, they will have to move it to at least a B rating. That means that as soon a people attack a house for renovations, for example, to put on a conservatory, develop an attic or build over a garage, they are starting to get into the space where the entire home has to be treated as an energy system. In time, it will come to a point where people will be chasing additional sources of income through being energy positive but, in the first case, the incentive is to get the builds down to a near zero rating. Moving a person to a point where they ask whether they are prepared to invest that level of money and wait 20 or 30 years for the payback, if they are not getting incentives, is a harder nut to crack.