The detailed microdata from the US Dept of Energy, Energy Information
Administration on the 2003 commercial sector survey were used to generate
energy use index values (EUIs) based on source energy (energy used to
deliver the energy to the final user is included for all fuels). The
source energy conversion factors are based on US EPA EnergyStar values.
The ASHRAE Handbook of Fundamentals, HVAC Applications
(currently 2007), “Energy Use and Management” (currently Chp 35)
chapter also has similar EUI values based on site or final use energy only.
US data on emission factors for buildings and additional data on source energy
can be found in the document having a similar-named link below.