IS COMMISSIONING ONCE ENOUGH?

摘要

The Energy Systems Laboratory has developed a commissioning process called Continuous Commissioning~(SM) over the last decade. This process is used to resolve operating problems, improve comfort, optimize energy use, and sometimes to recommend retrofits. The process has produced average energy savings of about 20% without significant capital investment in well over 100 large buildings in which it has been implemented. Payback has virtually always been under 3 years with most at two years or less. This paper describes the process and presents recent evidence of the need for follow-up commissioning when indicated by consumption increases. A case study is presented that specifically shows the value of this follow-up.