ISO 50002-1:2025
2025-06
What is ISO 50002-1:2025?
ISO 50002-1:2025 is the international standard that defines the general requirements and guidance for conducting energy audits. It provides a structured methodology for evaluating energy use and identifying opportunities for improving energy performance across buildings, processes, systems, and transport.
This standard is part of the ISO 50002 series and replaces ISO 50002:2014.
It is applicable to any organization, regardless of size, sector, or location, and is designed to support both standalone audits and those integrated into broader energy management systems like ISO 50001.
Why is ISO 50002-1 important?
Energy audits are essential tools for identifying inefficiencies and opportunities for improvement in energy use. ISO 50002-1 is important because it:
- Establishes a consistent and transparent framework for energy audits.
- Enhances the credibility and comparability of audit results.
- Supports climate action goals by identifying decarbonization and net-zero opportunities.
- Aligns with ISO 50001, enabling organizations to use audits as part of their energy management system.
- Helps organizations prioritize investments in energy performance improvement actions (EPIAs).
Benefits of ISO 50002-1
- Structured audit process: Clear stages from planning to reporting ensure thorough and effective audits.
- Identification of EPIAs: Helps uncover actionable opportunities to reduce energy use and emissions.
- Data-driven decisions: Emphasizes evidence-based analysis and measurement.
- Supports sustainability: Encourages decarbonization and integration with net-zero strategies.
- Improved communication: Clarifies roles and responsibilities between auditors and organizations.
- Competence-based approach: Ensures audits are conducted by qualified professionals.
FAQ
Any organization seeking to improve energy performance through structured audits, including internal teams, external consultants, and energy service companies.
No. It is scalable and applicable to organizations of all sizes and sectors.
An EnPI is a metric used to measure energy performance. It can be a simple ratio, a model, or a more complex calculation depending on the organization’s needs.
ISO 50002-1 can be used to support the energy review process required by ISO 50001, but it can also be used independently.
- Level 1: Walk-through audit.
- Level 2: Detailed survey and analysis.
- Level 3: Comprehensive engineering analysis.
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- ISO 50001:2018: The global standard for energy management systems
- ISO 50002-1:2025: Principles and requirements for energy audits
- ISO 50002-2:2025: Guidance for energy audits in buildings
- ISO 50002-3:2025: Guidance for energy audits in processes
- ISO 50004:2020: Implementation and continual improvement guidance
General information
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Status: PublishedPublication date: 2025-06Stage: International Standard published [60.60]
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Edition: 1Number of pages: 37
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Technical Committee :ISO/TC 301ICS :27.015
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This standard contributes to
- Achieve climate neutrality: Validation, verification and conformity assessment; GHG emissions / mitigation;
- Integrate climate action in governance and management: GHG emission reduction and carbon removals projects;
Life cycle
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Previously
WithdrawnISO 50002:2014
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Now
