An energy audit ascertains the major concerns about how energy is being used (when, where, why, how is it being used?) and gives data that can be used to greatly improve efficiency, reduce energy costs and GHG emissions, and confirm the overall effectiveness of the energy-efficient measures that have been implemented.

Energy Systems Analysis develops a methodology to measure the technical impact of energy and materials usage, using software models to create quantitative comparisons of energy technologies. This analysis enables understanding of how to take advantage of opportunities within the building to reduce emissions and increase the efficiency of energy systems.