ASHRAE has released an expanded, revised version of ANSI/ASHRAE/IES Standard 90.1-2019, Energy Efficiency Standard for Buildings Except Low-Rise Residential Buildings.
It contains more than 100 changes from the 2016 version, including numerous energy-saving measures. The new version “focuses on energy-saving measures which we hope will reward designs for achieving energy cost levels above the standard minimum and result in more efficient buildings and more innovative solutions,” says Drake Erbe, chair of the Standard 90.1 committee, in an ASHRAE news release.
Notable changes include:
— Commissioning requirements were added for the first time.
— Minimum criteria for SHGC and U-factor were upgraded across all climate zones.
— Lighting power allowances for the Space-by-Space Method and the Building Area Method were modified to make them more representative of real-world conditions.
— An option to use ASHRAE Standard 90.4 instead of ASHRAE/IES Standard 90.1 requirements in computer rooms that have an IT equipment load larger than 10 kW was added.
— Clearer and more specific rules were added related to how renewables are treated. A new fan energy index (FEI) as the metric for efficiency provisions for commercial and industrial fans and blowers was added.
Related Stories
Codes and Standards | Sep 2, 2020
California releases guide for state water policy
Water Resilience Portfolio is roadmap for meeting water needs as climate changes.
Codes and Standards | Aug 31, 2020
Fenestration alliance updates fenestration sealants guide
First update to 2009 document.
Codes and Standards | Aug 25, 2020
Platform will allow researchers to test energy system integration at scale
The U.S. Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) recently launched the Advanced Research on Integrated Energy Systems (ARIES) platform.
Codes and Standards | Aug 20, 2020
Wariness of elevators may stymie office reopening
Workers could balk at returning to high-rises.
Codes and Standards | Aug 19, 2020
Existing laws may be restricting efforts to cut carbon emissions
Outdated policies favor fossil fuels.
Codes and Standards | Aug 18, 2020
Florida becomes the third state to adopt concrete repair code
Sets minimum requirements for design, construction, repair of concrete structural elements in buildings.
Codes and Standards | Aug 17, 2020
ASCE seeks comments on seismic standard
Pertains to design criteria for nuclear facilities.
Codes and Standards | Aug 13, 2020
COVID-19 reboot guide offers strategies for reopening K-12 schools
Looks at space considerations for reopening at different scales.
Codes and Standards | Aug 12, 2020
Document provides guidance for mass timber construction
Overview of Intl. Building Code requirements included.
Codes and Standards | Aug 11, 2020
Inefficient air conditioning is a key contributor to global warming
More efficient equipment and buildings could make a big difference.
