In addition to the great holistic approach being taken at the Empire State Building, there are many innovative technologies and programs that can be implemented quickly and create the new and expanded GREEN recovery jobs. These include the O&M rating system for HVAC as described in http://www.energy.wsu.edu/documents/building/project/Commercial_Bldg_O&M...

The AirAdvice Diagnostic program will bring the energy assessment costs down for the smaller buildings and technologies such as the PACE controller can optimize the existing rooftop units if they are to be retained and even prepare them for Demand Response and integration of renewables to run them.

Good posting. It is unlikely that private capital will be widely available for retrofits of privately owned commercial buildings.

It is one of the world's famous buildings. It is not suited to small and medium-sized commercial buildings, where transaction costs are often disproportionately high relative to the profit opportunity for ESCOs.
Thanks,