ISO 50001 Internal Audits

ISO 50001:2011, Energy management systems – Requirements with guidance for use, is a voluntary International Standard developed by ISO (International Organization for Standardization). ISO 50001 gives organizations the requirements for energy management systems (EnMS). ISO 50001 provides benefits for organizations large and small, in both public and private sectors, in manufacturing and services, in all regions of the world


According to the ISO 50001 standard, organizations should establish a programme to evaluate periodically on its EnMS implementation and check the effectiveness of the system in fulfilling their energy policy. The programme should include the scope and frequency of the audits. Internal audit of EnMS is different from an energy audit or assessment.


The internal audit evaluates the processes, procedures and implementation of the EnMS to determine if they are appropriate to the organization, implementation status and conforming to requirements of the ISO 50001 standard. It helps identify nonconformities and opportunities for improvement of the EnMS. In practice, it can be performed by either internal or external persons, as long as they are competent, impartial and objective in conducting the EnMS audit. At the end of the audit, proper records should be maintained and submitted to management for review.


In general, the audit programme and procedures should cover: 


• specific activities / areas of the EnMS to be audited; 

• frequency of audits (different elements of the EnMS may be audited at different frequencies); 

• responsibilities and selection of auditor(s); 

• communication of audit results; 

• auditor competence; and 

• process of conducting audits


We are also certified Auditors for the fulfilment of the ISO 50001 Standard.