ASHRAE unveils new framework for building decarbonization and energy efficiency standards
Key Highlights
- Standard 90.1 remains the primary benchmark for energy efficiency in commercial buildings, with future editions focusing on cost-effective energy requirements.
- A new, separate publication will address operational greenhouse gas emissions, including renewable energy integration and emissions reporting.
- This strategic shift allows building owners, designers, and policymakers to adopt emissions reduction measures without impacting energy code compliance.
- The approach supports climate goals for K-12 districts, higher education, and large corporations by providing clear pathways for decarbonization.
- ASHRAE’s evolution reflects the building industry’s need for adaptable standards that meet both energy efficiency and emissions reduction objectives.
For colleges and universities with climate action plans, and for school districts in states or cities pursuing building decarbonization policies, a newly released ASHRAE publication could become an important planning tool by helping owners and designers separate baseline energy-code compliance from broader emissions-reduction strategies.
ASHRAE recently announced a strategic direction for the development of future editions of ANSI/ASHRAE/IES Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings, reinforcing its longstanding role as the industry’s foundational energy efficiency design standard for commercial buildings while responding to evolving market and customer needs for operational emissions reduction.
The organization says future editions of Standard 90.1 will continue to focus primarily on energy efficiency and cost-justified energy requirements, consistent with the standard’s long-standing purpose. Standard 90.1 has been widely used as a benchmark for commercial building energy performance and code compliance.
At the same time, ASHRAE says states, cities, large corporations, and other building stakeholders are increasingly seeking guidance on how to reduce operational emissions. To address that need, ASHRAE plans to create a separate, aligned publication that offers an optional framework for reducing operational emissions in commercial buildings, including ways to account for renewable energy availability.
Carbon provisions will move into separate publication
As part of the 2028 and 2031 work plan for the Standard 90.1 Standing Standard Project Committee, ASHRAE plans to move operational carbon-focused provisions from the 2025 edition of Standard 90.1 into a standalone publication.
Those provisions include optional Addenda M and N, which were introduced in the 2025 edition as operational carbon-focused appendices. ASHRAE says the new publication will focus specifically on operational greenhouse gas emissions reduction and serve as a blueprint for jurisdictions and other users interested in developing operational carbon standards and codes.
“Standard 90.1 has helped define energy-efficient commercial building design for more than 50 years,” said ASHRAE President Sarah E. Maston in a press release. “At the same time, the building industry is evolving, and our tools must evolve with it.”
Maston said the separate pathway will allow ASHRAE to respond to emerging market needs without weakening the energy-efficiency principles at the center of Standard 90.1.
Why this matters
For K-12 districts and higher education institutions, the announcement helps clarify how future energy and carbon requirements may evolve. Standard 90.1 will remain the core energy-efficiency reference point for commercial building design, while operational carbon reduction may be addressed through a separate framework that jurisdictions, campuses, and project teams can choose to apply.
That distinction is important for school facility leaders because energy efficiency typically affects code compliance, utility costs, equipment selection, envelope performance, HVAC design, and long-term operations. Operational carbon goals may add another layer of planning tied to electrification, renewable energy, emissions reporting, and climate commitments.