Both energy audits and retro-commissioning identify problems with key building systems. An energy audit of your facility will tell you if there is equipment in need of maintenance, repair or replacement. Energy audits also compare your utility usage to that of similar buildings in a process called ‘benchmarking’ to determine deviations from the average that may indicate a problem. Retro-commissioning takes the process one step further to include implementation of corrective measures to achieve the cost savings identified.