The climate change challenge is at once both incredibly complex and at the same time a clear set of discrete problems to resolve. Chief among them is, firstly, the decarbonization of electricity and secondly the electrification of two of the largest guzzlers of energy – buildings and transportation. Across North America and Europe, buildings account for roughly 40 per cent of all energy consumption. This means that, as in our peers, managing Ireland’s housing stock will be central to the country meeting its climate change objectives. Last week, the subject of retrofitting property loomed large in the Oireachtas. At the…