The Department of Energy’s recently released new energy efficiency standards for federal buildings.
Starting in April 2023, all new federal building projects and major retrofits will be constructed to meet 2021 International Energy Conservation Code and the 2019 ASHRAE Standard 90.1 codes. The new standards are expected to save $4.2 million in operating costs in the first year.
The federal government is the largest building owner and manager in the U.S., with a portfolio of more than 350,000 buildings. Those structures contain more than 3 billion sf of space.
The 2019 edition of Standard 90.1 includes more than 100 energy-focused updates of the previous edition published in 2016. The 2021 IECC incorporates significant changes the 2018 edition, including:
· Increased insulation requirements and reduced fenestration U-factors and solar heat gain coefficients.
· Updated mechanical equipment efficiency requirements, new provisions for data centers, and plant growth lighting.
· Increased lighting efficacy and decreased lighting power density requirements.
Related Stories
| Oct 15, 2014
Harvard launches ‘design-centric’ center for green buildings and cities
The impetus behind Harvard's Center for Green Buildings and Cities is what the design school’s dean, Mohsen Mostafavi, describes as a “rapidly urbanizing global economy,” in which cities are building new structures “on a massive scale.”
| Sep 15, 2014
Sustainability rating systems: Are they doomed?
None of the hundreds of existing green building rating systems is perfect. Some of them are too documentation-heavy. Some increase short-term project cost. Some aren’t rigorous enough or include contentious issues, writes HDR's Michaella Wittmann.
| Sep 7, 2014
Building the cladding palette: panels, rainscreens, and veneers [AIA course]
When it comes to cost, performance, and aesthetics—not to mention maintenance and long-term resilience—the evaluation of cladding materials and façade systems is more complex than ever. This course is worth 1.0 AIA CES HSW learning units.
| Aug 11, 2014
New guide for prevention of thermal bridging in commercial buildings
The guide aims to overcome obstacles with respect to mitigating thermal bridging to reduce energy consumption in buildings.
| Aug 4, 2014
Facebook’s prefab data center concept aims to slash construction time in half
Less than a year after opening its ultra-green, hydropowered data center facility in Luleå, Sweden, Facebook is back at it in Mother Svea with yet another novel approach to data center design.
| Jul 30, 2014
German students design rooftop solar panels that double as housing
Students at the Frankfurt University of Applied Sciences designed a solar panel that can double as living space for the Solar Decathlon Europe.
| Jul 17, 2014
A harmful trade-off many U.S. green buildings make
The Urban Green Council addresses a concern that many "green" buildings in the U.S. have: poor insulation.
| Jul 17, 2014
A high-rise with outdoor, vertical community space? It's possible! [slideshow]
Danish design firm C.F. Møller has developed a novel way to increase community space without compromising privacy or indoor space.
| Jul 11, 2014
Are these LEGO-like blocks the future of construction?
Kite Bricks proposes a more efficient way of building with its newly developed Smart Bricks system.
| Jun 20, 2014
U.S. Energy Information Administration releases preliminary Commercial Buildings Energy Consumption Survey results
Federal survey project shows that commercial-building floorspace has grown 22% since 2003; energy-use data will be released in Spring 2015.