"Not many firms have invested in the training and technology needed to efficiently implement energy modeling on projects. While DOE2 costs nothing to download, designers proficient in both its use and the productive interpretation of its data are rare and expensive to employ. For the vast majority of buildings, owners seldom know how a building will perform and, since electrical engineers design around projected maximum power use, they don’t know how much energy it will consume until the building opens. "
Russell Fortmeyer ENR