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

Perform a site assessment to investigate possible operational improvements.
Develop a detailed energy end-use breakdown for individual building systems and processes.
Identify where diagnostics and testing may be appropriate.
Develop and implement the diagnostic and test plans.
Develop a Master List of Deficiencies and Improvement Opportunities based on results of diagnostics and testing.
Prioritize recommended improvements based on cost-effectiveness.