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What’s the difference between the ISO 2011 and 2018 versions of ISO 50001?

ISO 50001:2018 is based on Annex SL – the new ISO high level structure (HLS) that brings a common framework to all management systems, i.e. it applies a common language across all standards.

This helps to keep consistency, supports alignment of different management system standards, e.g. ISO9001, ISO14001, etc. With the new standard in place, organisations will find it easier to incorporate their energy management system into core business processes and get more involvement from top management.

The main change organisations who hold ISO50001:2011 will see are the requirements in clause 4.

Clause 4 relates to the context of the organisation and requires organisations to consider their relevant internal and external issues and consider the needs and expectations of interested parties who could be affected by the management system.

When establishing the scope and boundaries of certification, it is now made explicit that organisations cannot exclude any energy type at this stage.

Clause 5 relates to Leadership. The requirement for a management representative has been removed and requirements for leadership have been enhanced. This helps to ensure that energy is considered by top management and becomes a strategic issue for the organisation.

Clause 6 relates to planning. This is undertaken at a strategic and tactical level via determining actions to address risks and opportunities identified and via the undertaking of an energy review which leads to the development of objectives, action plans, Energy performance indicators (EnPI’s) and energy baselines (EnB’s) The final part of clause 6 requires us to establish a energy data collection plan.

Clause 7 relates to support and brings together the requirements to provide resources, define competencies, deliver awareness, communication and documented information as deemed necessary to ensure the EnMS is effective.

Clause 8 relates to operation, this consolidates design, procurement and operational controls relating to the facilities and equipment defined in the scope and boundaries of certification. This extends to the procurement of energy which can increasingly include a mix of energy from renewable sources.

Clause 9 relates to performance evaluation. This requires us to implement the energy data collection plan from clause 6 and undertake the actions necessary to monitor and measure, conduct internal audits and undertake management review. We recommend taking time to review and update your management review process in line with clause 9.3 of the 2018 revision.

Clause 10 relates to improvement. The term preventive action has been removed from the standard, however via determining issues (4.1) interested parties needs and expectations and legal requirements (4.2) and via taking actions to address risks and opportunities (6.1) organisations can demonstrate continual improvement in energy performance.

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Whether you choose to work with one of our isologist consultants or work your own way through the process on our isology Hub, we’re certain you’ll achieve certification in no time!

What our clients have to say

We engaged Blackmores to develop our ISO 9001, 14001, and 45001 management system from scratch. Throughout the creation and development stages of our ISO journey, Anju Punetha demonstrated remarkable patience, knowledge, and understanding as our dedicated consultant.

During our internal audit preparations, Ian Battersby’s meticulous attention to detail and thorough approach ensured we were well-prepared for our external audit, which we passed with flying colours. His guidance during the external audit was invaluable.

Based on our engagement and experience, I highly recommend the entire Blackmores team. If you’re considering pursuing ISO accreditations, Blackmores should be your first choice.

Graeme Adam

The support and advise I get from our assigned auditors is immense. Forward planning for the following year is great and they are flexible and always willing to help.

Kalil Vandi

“Blackmores have assisted us almost since the start of our adoption of the ISO 9001 quality standard. Their input has improved our processes since the start, and enabled our goal of continuous improvement to be achieved. The people are also extremely easy to get on with, and they really understand our business, giving us a great deal of confidence in their advice.”

David Gibson

Photon Lines Ltd

“Blackmores are the perfect bridge between working on your ISO as an individual or company, to being audited each year.  We find that any queries we have are covered and we feel sure that we have everything as needs be before going into an external audit.”

Mandy Welsby

Jaama Ltd

“We have been extremely impressed with the service and support provided by Blackmores.  There knowledge and assistance through out our ISO journey has been amazing!”

Philip Hannabuss

Dome Consulting

“Blackmores have really kept us on our toes with the broad scope and level of detail they apply to our internal audit schedule. They always stay abreast of ISO standard changes and help us to adapt our processes and documents to embrace these changes accordingly. Having Blackmores shadow our external audits provides invaluable confidence and peace of mind – would highly recommend their services!”

Phil Geens

Kingsley Napley

“Our ISO 27001 certification project has gone so well, that there was no doubt in who we were going to ask to help us with our aspirations of becoming ISO 14001 certified. It’s been an absolute pleasure working with Blackmores, and we are really looking forward to working with them for the foreseeable future.”


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