50001:2018 / ISO50002 energy audit allows companies to adopt energy management strategies that reduce business risk and improve productivity and operations. This voluntary Energy Management System helps companies improve energy efficiency and cut costs. ISO 50001 provides a framework for achieving your energy targets-reducing the loss of energy resources, which mitigates climate change, as well as increasing company operation performance. ISO 50002 is the auditing standard that guides energy auditors to achieving the desired energy usage outcome.