ANSI/ASHRAE/IES 100-2024
Energy and Emissions Building Performance Standard for Existing Buildings

Introduction: ANSI/ASHRAE/IES Standard 100-2024

Energy and Emissions Building Performance Standard for Existing Buildings

This standard establishes procedures for evaluating the energy performance of existing buildings and assessing their impact on the environment. It provides methodologies for determining energy consumption, emissions, and compliance with sustainability goals. The document includes guidance on data collection, analysis, and reporting, as well as information on updates through addendums and continuous maintenance by a dedicated committee.

ANSI/ASHRAE/IES 100-2024 history

2024 ANSI/ASHRAE/IES 100-2024 Energy and Emissions Building Performance Standard for Existing Buildings
2018 ANSI/ASHRAE/IES 100-2018 Energy efficiency in existing buildings