ISO 50001

Key takeaways

ISO 50001 belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect ISO 50001 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of ISO 50001 from memory before moving on to harder problems.

Reference excerpt

ISO 50001 Energy management systems - Requirements with guidance for use, is an international standard created by the International Organization for Standardization (ISO). It supports organizations in all sectors to use energy more efficiently through the development of an energy Management System. The standard specifies the requirements for establishing, implementing, maintaining, and improving an energy management system, whose purpose is to enable an organization to follow a systematic approach in achieving continual improvement of energy performance, including energy efficiency, energy security, energy use, and consumption. The standard aims to help organizations continually reduce their energy use, and therefore their energy costs and their greenhouse gas emissions. ISO 50001 was originally released by ISO in June 2011 and is suitable for any organization, whatever its size, sector or geographical location. The second edition, ISO 50001:2018 was released in August 2018. The system is modelled after the ISO 9001 Quality Management System and the ISO 14001 Environmental Management System (EMS) and the 2018 version has clauses modular with both. A significant feature in ISO 50001 is the requirement to "... improve the EnMS and the resulting energy performance" (clause 4.2.1 c). The other standards mentioned here (ISO 9001 and ISO 14001) both require improvement to the effectiveness of the Management System but not to the quality of the product/service (ISO 9001) or to environmental performance (ISO 14001). It is anticipated that by implementing ISO 9001 and 14001 together an organization would improve quality and environmental performance, but the standards do not currently specify this as a requirement. ISO 50001, therefore, has made a major leap forward in 'raising the bar' by requiring an organization to demonstrate that they have improved their energy performance. There are no quantitative targets specified – an organization chooses its own then creates an action plan to reach the targets. With this structured approach, an organization is more likely to see some tangible financial benefits.

Reasons for use The main objective of the standard is to improve energy-related performance and energy efficiency continuously and to identify energy reduction opportunities. This systematic approach will help organizations to establish systems and processes. Consistent energy management helps organizations to realize untapped energy efficiency potential. They will benefit from cost savings and make a significant contribution to environmental and climate protection, for example by the permanent reduction of CO2 emissions. The standard should alert employees and in particular the management level to the immediate and long-term energy management gains that can be made. The organization can discover potential savings and competitive advantages. Furthermore, a huge image boost for the organization can be created.

Background Organizations of all types and sizes increasingly want to reduce the amount of energy they consume. This is driven by the need or desire to:

reduce costs, reduce the impact of rising costs, meet legislative or self-imposed carbon targets, reduce reliance on fossil fuels, and enhance the entity's reputation as a socially responsible organization. In tandem, governments increasingly want to reduce the Greenhouse Gas Emissions of their citizens and industries, and are imposing legislative mechanisms to compel carbon reduction more and more frequently. In response, a range of energy management standards, specifications and regulations were developed in Australia, China, Denmark, France, Germany, Ireland, Japan, Republic of Korea, Netherlands, Singapore, Sweden, Taiwan, Thailand, New Zealand, and the United States. Subsequently, the European Committee for Standardization (CEN) developed EN 16001:2009 Energy management systems. Requirements with guidance for use as a first international energy management standard. This was published in July 2009 and withdrawn in April 2012 as it had been superseded by ISO 50001.

Development The United Nations Industrial Development Organization (UNIDO) recognized that industry around the world needed to mount an effective response to climate change. It also noted a proliferation of national energy management standards that were emerging as a response to market demand for help with energy efficiency. In April 2007, a UNIDO stakeholders meeting decided to ask ISO to develop an international energy management standard. ISO for its part had identified energy management as one of its top five areas for the development of International Standards and, in 2008, created a project committee, ISO/PC 242, Energy management, to carry out the work. ISO/PC 242 was led by ISO members for the United States (ANSI) and Brazil (ABNT). In addition, its leadership included the ISO members for China (SAC) and the United Kingdom (BSI Group) to ensure that developed and developing economies participated together in the project committee. Experts from the national standards bodies of 44 ISO member countries participated and another 14 countries sent observers. Development organizations including UNIDO and the World Energy Council (WEC) were also involved. ISO 50001 also drew on existing national and regional energy management codes and standards, including ones developed in China, Denmark, Ireland, Japan, Republic of Korea, Netherlands, Sweden, Thailand, the United States, and the European Union. ISO 50001:2011 Energy management systems – Requirements with guidance for use was published on June 17, 2011. ISO published a revised version of ISO 50001 in 2018. The revision reflects a desire to promote adoption of the standard among small and medium sized enterprises. It also incorporates ISO's "high level structure" for use where organizations wish to integrate a number of management system standards together.

Structure The structure of ISO 50001 is designed according to other ISO management system standards, in particular ISO 9001 (Quality Management Systems) and ISO 14001 (Environmental Management Systems). Since all three management systems standards are based on the plan–do–check–act (PDCA) cycle, and now share the same high level structure, ISO 50001 can be integrated easily to these systems. There are ten major components to ISO 50001:2018:

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with ISO 50001

Start with the simplest possible case. Write down what ISO 50001 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to ISO 50001 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about ISO 50001 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of ISO 50001

In research: ISO 50001 appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses ISO 50001 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: ISO 50001 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Energy economics, ISO standards, so understanding it makes those chapters shorter.
In everyday life: Look for ISO 50001 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

How to study ISO 50001 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what ISO 50001 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain ISO 50001 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is ISO 50001 in simple terms?

ISO 50001 Energy management systems - Requirements with guidance for use, is an international standard created by the International Organization for Standardization (ISO). It supports organizations in all sectors to use energy more efficiently through the development of an energy Management System.

Why does ISO 50001 matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study ISO 50001?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on ISO 50001.