ISO 50001 is the international standard for energy management. It provides a structured, data-driven way to reduce energy consumption, improve efficiency and demonstrate measurable performance improvement, using defined performance indicators and baselines rather than just describing good intentions.
Certification / Accreditation
ISO 50001 Energy management
At its core, it’s about the energy review: identifying significant energy uses, then measuring improvement against an established baseline. UK businesses qualifying for the Energy Savings Opportunity Scheme can use a certified ISO 50001 system as a recognised alternative compliance route.
Who it’s for and what’s involved
Relevant if you are:
Achieving certification involves:
How Q! supports certification
ESOS, solved properly
If your ISO 50001 system covers 100% of your UK energy use, the full ESOS energy audit requirement falls away entirely, removing the need for a Lead Energy Assessor for that portion. We help energy-intensive and technology businesses build a system that satisfies ESOS while driving year-on-year improvement, not just a point-in-time compliance exercise to repeat every four years.
Need to demonstrate real energy performance improvement, not just good intentions?
Mini FAQs
Yes, where your ISO 50001 certification covers any part of your UK energy use, you do not need a Lead Assessor for that portion. Cover 100% of UK energy consumption and the energy audit requirement falls away entirely. For organisations only just above the ESOS thresholds, a one-off audit may be simpler; for energy-intensive businesses wanting ongoing improvement, ISO 50001 does more.
It was amended in 2024 to add a requirement to determine whether climate change is a relevant issue. The amendment is narrow; it does not change the core requirements around significant energy uses, performance indicators and baselines.
Yes, frequently, given the overlap between energy and environmental performance. In the UK, organisations should also be aware of PAS 51215 for energy and decarbonisation assessments.
If energy is a small part of your cost base, the case is weaker on cost grounds alone, though the climate and decarbonisation credibility this standard provides may still matter for other reasons. For genuinely energy-intensive businesses, the savings identified through the energy review usually justify the investment on their own.
Relevant case studies
We’re proud of the service we provide and the feedback we get from our clients. but don’t just take our word for it.
Client: QFactorial
Our own B Corp journey: practising what we preach
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