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ISO 50002 Energy Audit

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Pilot-Credits EApc106: ISO 50002 Energy Audit 2 points

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USGBC logo

© Copyright U.S. Green Building Council, Inc. All rights reserved.

Intent

To give project teams globally the option to use ISO 50002 energy audit procedures as an alternative to those in the ASHRAE Procedures for Commercial Building Energy Audits, thereby reducing additional cost and documentation needed.

Requirements

Project teams may meet the requirements of ISO 50002:2014 Energy audits – Requirements with guidance for use as an alternative to the ASHRAE Procedures for Commercial Building Energy Audits.

ISO 50002 provides further detail on how to conduct energy audits under the organizational ISO 50001:2011 Energy management assessment standard. It may be followed independently or used as a voluntary input to an ISO 50001 certification. In all cases, the boundary of the energy system must correspond with the LEED project boundary of the building to be considered towards prerequisite or credit compliance.

Submittals

General
Register for the pilot credit Credits 106-115
Credit Specific
Project teams pursuing ISO 50002 should upload a final energy audit report that follows the contents set in Chapter 3, “Principles” and Chapter 4, “Performing an energy audit” to ensure that documentation is compliant with the scope of this prerequisite and credit. In particular, the following elements must be included: For Type 2 energy audits:
  • Estimate savings from utility rate change
  • Compare EUI to EUIs of similar sites
  • Summarize utility data
  • Estimate savings if EUI were to meet target
For Type 1 energy audits:
  • Estimate savings from utility rate change
  • Compare EUI to EUIs of similar sites
  • Summarize utility data
  • Estimate savings if EUI were to meet target
  • Estimate low-cost/no-cost savings
  • Calculate detailed end-use breakdown
  • Estimate capital project costs and savings
  • Complete building description and equipment inventory
  • Document general description of considered measures
  • Recommend measurement and verification (M&V) method
  • Perform financial analysis of recommended EEMs

Additional Guidance

Like the ASHRAE Procedures for Commercial Building Energy Audits, ISO 50002 specifies three levels of energy audit according to the level of detail involved. These three levels are defined in Annex A, "Guidance on the use of this international standard" and "Table A.1 – Indicative details of energy audit types". Project teams pursuing a Type 2 audit may wish to perform both the Type 1 and Type audits together. Note that ISO 50002 Type 2 is not as specific as ASHRAE Level II in certain cases. It is the responsibility of the energy auditor to set a level of detail that is consistent with the scope of the credit and ASHRAE Level II. For instance, project teams must include certain verification plans for LEED documentation that are not typically furnished as part of an ISO 50002 Type 2 audit. The use of EN 16247 or ISO 50002 may be particularly helpful for project teams in Europe who have or will conduct energy audits for regulatory compliance pursuant to Article 8 of the Energy Efficiency Directive (2012/27/EU).
Table 1. Summary of available energy audit standards

Credit/Prerequisite

Referenced Standard

Level of Detail

USGBC Resource Location

EAp1 Energy Efficiency Best Management Practices – Planning, Documentation and Opportunity Assessment

ASHRAE Procedures for Commercial Building Energy Audits

Level I walk-through assessment

All Resources

ISO 50002:2014 (Pilot ACP)

Type 1 audit

Pilot Credit Library

EN 16247-2:2014 (Europe ACP)

No audit level specified. Level of detail must be consistent with the scope of the credit.

Credit Library and Web-Based Reference Guide

EAc2.1 Existing Building Commissioning – Investigation and Analysis, Option 2

ASHRAE Procedures for Commercial Building Energy Audits

Level II energy survey and analysis

All Resources

ISO 50002:2014 (Pilot ACP)

Type 2 audit

Pilot Credit Library

EN 16247-2:2014 (Europe ACP)

No audit level specified. Level of detail must be consistent with the scope of the credit.

Credit Library and Web-Based Reference Guide

Referenced Standards
ISO 50002:2014 Energy audits – Requirements with guidance for use

Not pursuing this pilot but have a comment you'd like to share with USGBC?

Click here to submit your comment
See all forum discussions about this credit »

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USGBC logo

© Copyright U.S. Green Building Council, Inc. All rights reserved.

Intent

To give project teams globally the option to use ISO 50002 energy audit procedures as an alternative to those in the ASHRAE Procedures for Commercial Building Energy Audits, thereby reducing additional cost and documentation needed.

Requirements

Project teams may meet the requirements of ISO 50002:2014 Energy audits – Requirements with guidance for use as an alternative to the ASHRAE Procedures for Commercial Building Energy Audits.

ISO 50002 provides further detail on how to conduct energy audits under the organizational ISO 50001:2011 Energy management assessment standard. It may be followed independently or used as a voluntary input to an ISO 50001 certification. In all cases, the boundary of the energy system must correspond with the LEED project boundary of the building to be considered towards prerequisite or credit compliance.

Submittals

General
Register for the pilot credit Credits 106-115
Credit Specific
Project teams pursuing ISO 50002 should upload a final energy audit report that follows the contents set in Chapter 3, “Principles” and Chapter 4, “Performing an energy audit” to ensure that documentation is compliant with the scope of this prerequisite and credit. In particular, the following elements must be included: For Type 2 energy audits:
  • Estimate savings from utility rate change
  • Compare EUI to EUIs of similar sites
  • Summarize utility data
  • Estimate savings if EUI were to meet target
For Type 1 energy audits:
  • Estimate savings from utility rate change
  • Compare EUI to EUIs of similar sites
  • Summarize utility data
  • Estimate savings if EUI were to meet target
  • Estimate low-cost/no-cost savings
  • Calculate detailed end-use breakdown
  • Estimate capital project costs and savings
  • Complete building description and equipment inventory
  • Document general description of considered measures
  • Recommend measurement and verification (M&V) method
  • Perform financial analysis of recommended EEMs

Additional Guidance

Like the ASHRAE Procedures for Commercial Building Energy Audits, ISO 50002 specifies three levels of energy audit according to the level of detail involved. These three levels are defined in Annex A, "Guidance on the use of this international standard" and "Table A.1 – Indicative details of energy audit types". Project teams pursuing a Type 2 audit may wish to perform both the Type 1 and Type audits together. Note that ISO 50002 Type 2 is not as specific as ASHRAE Level II in certain cases. It is the responsibility of the energy auditor to set a level of detail that is consistent with the scope of the credit and ASHRAE Level II. For instance, project teams must include certain verification plans for LEED documentation that are not typically furnished as part of an ISO 50002 Type 2 audit. The use of EN 16247 or ISO 50002 may be particularly helpful for project teams in Europe who have or will conduct energy audits for regulatory compliance pursuant to Article 8 of the Energy Efficiency Directive (2012/27/EU).
Table 1. Summary of available energy audit standards

Credit/Prerequisite

Referenced Standard

Level of Detail

USGBC Resource Location

EAp1 Energy Efficiency Best Management Practices – Planning, Documentation and Opportunity Assessment

ASHRAE Procedures for Commercial Building Energy Audits

Level I walk-through assessment

All Resources

ISO 50002:2014 (Pilot ACP)

Type 1 audit

Pilot Credit Library

EN 16247-2:2014 (Europe ACP)

No audit level specified. Level of detail must be consistent with the scope of the credit.

Credit Library and Web-Based Reference Guide

EAc2.1 Existing Building Commissioning – Investigation and Analysis, Option 2

ASHRAE Procedures for Commercial Building Energy Audits

Level II energy survey and analysis

All Resources

ISO 50002:2014 (Pilot ACP)

Type 2 audit

Pilot Credit Library

EN 16247-2:2014 (Europe ACP)

No audit level specified. Level of detail must be consistent with the scope of the credit.

Credit Library and Web-Based Reference Guide

Referenced Standards
ISO 50002:2014 Energy audits – Requirements with guidance for use

Not pursuing this pilot but have a comment you'd like to share with USGBC?

Click here to submit your comment
See all LEEDuser forum discussions about this credit » Subscribe to new discussions about Pilot-Credits EApc106