“ISO 50001 stipulates that the company shall ensure that the key characteristics of its operations that determine energy performance are monitored, measured and analysed at planned intervals”. (IMO: Module 6. 2016, 21.)

“ISO 5001 also advocates the effective use of internal audits as a monitoring method. Accordingly, an audit plan shall be developed taking into consideration the importance of the processes and areas to be audited as well as the results of previous audits. Records of the audit results shall be maintained and reported to top management”. (IMO: Module 6. 2016, 21.)