As it may be noted from the previous paragraphs, this paper focuses on whole-building energy consumption or energy demand. However, there are other two areas of research related to the use of regression analysis to estimate residential energy consumption. The first area is regarding power demand. A review work by Grandjean et al. [7] covers the ‘electric load curve models’ which is the name given to the equations/models that can be used to predict domestic power demand. To have a better sense of the difference between both approaches, energy demand and power demand, Gradjean et al. stated ‘The influence of the human behavior on the domestic power demand is so important that there is every chance for instance that two