ISO 50002-2:2025
2025-06
ISO 50002-2:2025
What is ISO 50002-2:2025?
ISO 50002-2:2025 is a companion standard to ISO 50002-1, providing specific guidance for conducting energy audits in buildings. It applies to both new and existing buildings and is intended to help organizations identify opportunities to improve energy performance, reduce costs, and enhance occupant comfort and sustainability.
This standard is part of the ISO 50002 series and focuses on the unique characteristics and challenges of auditing energy use in buildings, including technical systems, building envelopes, and occupant behavior.
Why is ISO 50002-2 Important?
Buildings are major consumers of energy, and improving their efficiency is key to achieving sustainability and climate goals. ISO 50002-2 is important because it:
- Provides a structured approach to auditing energy use in buildings.
- Supports compliance with energy efficiency regulations and voluntary sustainability goals.
- Helps identify cost-effective energy performance improvement actions (EPIAs).
- Enhances occupant comfort, health, and well-being.
- Facilitates integration with ISO 50001 energy management systems.
Benefits
- Tailored for buildings: Addresses the specific needs of building audits, including HVAC, lighting, and envelope systems.
- Energy and cost savings: Identifies actionable opportunities to reduce energy use and operational costs.
- Supports sustainability: Helps organizations meet decarbonization and net-zero targets.
- Data-driven insights: Encourages the use of performance indicators and benchmarking.
- Competence-based auditing: Ensures audits are conducted by professionals with relevant building expertise.
- Stakeholder engagement: Clarifies roles of owners, tenants, and facility managers in the audit process.
FAQ
Organizations that own, operate, or manage buildings, as well as energy auditors conducting building-specific audits.
ISO 50002-2 provides building-specific guidance and should be used in conjunction with ISO 50002-1, which outlines general energy audit principles.
Yes. It applies to all building types, including residential, commercial, and institutional buildings.
Heating, cooling, ventilation, lighting, domestic hot water, building automation, and on-site energy generation systems.
Yes. It complements ISO 50001 by providing detailed audit guidance that supports the energy review process.
Buy together
Complete energy management & audit standards package
Boost your energy efficiency: your toolkit for energy savings, compliance, and continual improvement.
- 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: 21
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Technical Committee :ISO/TC 301ICS :27.015
- RSS updates
This standard contributes to
- Achieve climate neutrality: Validation, verification and conformity assessment; GHG emissions / mitigation;
- Integrate climate action in governance and management: Climate corporative governance;
