Cost-Benefit Analysis for Commissioning
Recent PECI studies indicate that on average the operating costs of a commis-
sioned building range from 8% to 20% below that of a non-commissioned building.
BOMA cost data for office buildings suggests that building commissioning can
result in energy savings of 20 to 50% and maintenance savings of 15 to 35%.
Beyond operating efficiency, successful building commissioning has been linked
to reduced occupant complaints and increased occupant productivity. The example
below demonstrates the financial impact of increased occupant productivity.
Average Annual Commercial Expenditure
in $ per square foot
Source: Data from Building Owners and Managers Association; Electric Power Research Institute; Statistical
Abstract of the United States, 1991
This chart illustrates that salaries dominate average annual commercial expendi-
tures when compared to other operating costs such as facility operations and rent
costs. For a standard office building of 250,000 sf, there are approximately 1500
occupants at an average salary of ,000 each (taken from US Census Bureau
March 2002). This equates to million/year in salary expenses including fringe
benefits. Analyzing potential cost savings, a 10-20% increase in productivity
could result in an 6 million dollar impact each and every year.