Correct. There is some hope though because there's a money to be saved by reduce the operational energy usage through retrofit strategies. This can be as simple

Correct. There is some hope though because there's a money to be saved by reduce the operational energy usage through retrofit strategies. This can be as simple as reskinning a building - switching to more high-performance glazing or adding insulation - to reduce the lighting and thermal loads. The Rockefeller Foundation valued the U.S. commercial building retrofit market at $280 billion based on implementing improvements to achieve 30% energy savings in buildings built before 1980- but this would require financial mechanisms and structures to assure ROI for investors. Cite: Franconi, Ellen, Kristin Field and Michael Deru, 2013. Building Performance Modeling for Gaining Investor Confidence. http://www.ibpsa.org/proceedings/BS2013/p_1401.pdf http://www.ibpsa.org/proceedings/BS2013/p_1401.pdf