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 | Dec 19, 2018
Guidance for water utilities on indoor recycled water use released
Provides recommended ranges on 13 different parameters of water quality.
Codes and Standards | Dec 18, 2018
Development in Africa, Asia, and uptake in air conditioning will require more efficient buildings
Dramatic action will be needed for global building sector to cut carbon in line with international agreements.
Codes and Standards | Dec 14, 2018
Emissions for buildings and construction have peaked, UN says
Greener buildings have led to leveling off of GHGs.
Codes and Standards | Dec 13, 2018
Urban flooding causing economic loss, social disruption, and housing inequality
Extensive suburban development, aging and poorly maintained infrastructure, and more intense rainfall mean more flooding.
Codes and Standards | Dec 12, 2018
California’s transportation problems could prevent state from reaching carbon reduction goals
Governor’s carbon neutral-by-2045 ambitions at odds with car culture.
Codes and Standards | Dec 11, 2018
Strict seismic building codes credited with minimizing damage in Alaskan earthquake
Magnitude 7.0 temblor cracked roads and collapsed road ramps, but buildings held up well.
Codes and Standards | Dec 7, 2018
Florida tops ABC’s 2018 Merit Shop Scorecard rankings
Michigan rose fastest after passing prevailing wage law.
Codes and Standards | Dec 6, 2018
North American steel yields lower GHG emissions than Chinese steel
North American construction steel saves about half of GHG emissions on building project.
Codes and Standards | Dec 5, 2018
Canadian retailer builds net-zero stores
Other chains also boost green efforts with PVs, EV charging stations.
Codes and Standards | Dec 4, 2018
Action on building codes would spur low-carbon cities
Faster retrofit cycles, increased energy-efficiency requirements for existing buildings needed.
