In previous LEED building energy studies the mean EUI (site or
source) of the LEED buildings has been compared with similar figures
from CBECS and, based on this comparison, conclusions drawn
as to whether the LEED buildings use more or less site or source
energy than comparable conventional buildings [2–4,6,7,9–11]. In
this case, however, the NYC Benchmarking data set provides measured
data for hundreds of similar office buildings for the same year
and geographical region.