Proposed Revisions to ASHRAE/IES Energy Standard for Existing Buildings Open for Public Comment

May 15, 2012
Public input concerning proposed changes to ANSI/ASHRAE/IESNA Standard 100-2006, Energy Conservation in Existing Buildings, is being sought until June 18.

Public input concerning proposed changes to ANSI/ASHRAE/IESNA Standard 100-2006, Energy Conservation in Existing Buildings, is being sought until June 18.

The proposed changes include criteria for energy-use surveys and auditing and requirements related to implementation and verification. Appendices are included for life-cycle-cost-analysis procedures, as well as identification of potential energy-conservation measures.

Recognizing that the actual occupancy of a building plays a key role in its performance, the standard establishes the need for development of an energy-management plan and an operation-and-maintenance plan.

“The standard takes advantage of the fact that any building which has been in operation for at least 12 months can quickly determine its performance relative to some benchmark, which is defined in the standard as an energy-use-intensity target,” Rick Hermans, chair of the committee writing the standard, said. “This concept is the new paradigm for energy-conscious design, construction, and operation of buildings.”

The standard provides requirements for the retrofit of existing buildings, addresses major and minor modifications of residential and commercial buildings and single- and multiple-activity buildings with variable occupancy periods, and identifies approaches for 53 building types in 16 climate zones/subzones.

The revised standard also identifies energy-efficiency requirements for buildings with and without energy targets and provides multiple levels of compliance.

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JOHN VASTYAN

March 16, 2024
ASHRAE