Complete the following steps, whether using an outside commissioning agent or in-house staff.

Review mechanical and electrical system designs and current operations.
Review any existing operational and maintenance problems.
Measure key operating parameters and compare to design levels.
Develop a breakdown of the total annual energy consumption by end-use based on calculated loads or spot measurements.
Provide a list of practical modifications, potential energy cost savings, and the cost of each practical measure.
Estimate the combined energy savings of all practical measures.
Create a list of low cost and no cost energy efficiency measures based on the audit results.