News

April 5, 2016
About 10% of the energy used in U.S. buildings—approximately 4 quads a year—compensates for energy lost through windows. To address this inefficiency, architects, engineers, and home-builders are advocating the use of high-performance windows, which are composed of insulated glass units (IGUs) that combine multiple panes, thin film coatings, and special gas fills between the panes, and... Read more
February 25, 2016
Low-cost coating would disrupt the building retrofit market and potentially save billions in electricity.It’s estimated that 10 percent of all the energy used in buildings in the U.S. can be attributed to window performance, costing building owners about $50 billion annually, yet the high cost of replacing windows or retrofitting them with an energy efficient coating is a major deterrent. U.S.... Read more
January 11, 2016
The U.S. Department of Energy’s Superior Energy Performance® (SEP™) certifies industrial facilities that implement an energy management system that meets the ISO 50001 global energy management system standard and achieve improved energy performance.In December 2015, Hilton Worldwide gained the distinction of being the first hospitality company—as well as the first company outside the... Read more
December 22, 2015
New Berkeley Lab study uses regional climate model to compare heat waves to normal summer conditions.It is well established that white roofs can help mitigate the urban heat island effect, reflecting the sun’s energy back into space and reducing a city’s temperature under normal weather conditions. In a new study of Guangzhou, China, Lawrence Berkeley National Laboratory (Berkeley Lab)... Read more
November 23, 2015
Jessica Granderson, Research Scientist and Deputy of Research Programs for Lawrence Berkeley National Laboratory’s (Berkeley Lab’s) Building Technology and Urban Systems Division, has been honored with a Clean Energy Education & Empowerment (C3E) Award in the area of Research Leadership. This is the fourth year that the awards have been presented at the annual U.S. Department of Energy /... Read more
October 21, 2015
"You are literally changing the world, and I am honored to be part of it, even if for few hours" said Arwa Guesmi, from Tunisia after her visit to Berkeley Lab. Guesmi is an Emerging Leader (EL) at the U.S. Department of State's TechWomen program. Nine TechWomen ELs from seven countries visited Berkeley Lab on October 14th to learn more about energy research and green technology. The visiting... Read more
October 16, 2015
When Meeting of the Minds participants visit Berkeley Lab’s FLEXLAB®, they won’t just see the world’s most advanced buildings efficiency test bed. They’ll also learn how the Global Partnership Alliance’s Integrated Systems, Guaranteed Performance, and iBOS initiatives are conjoining to transform commercial building energy efficiency, potentially saving billions of dollars.... Read more
August 31, 2015
Berkeley Lab energy analysis finds gaming computers consume $10 billion in electricity per year.In the world of computer gaming, bragging rights are accorded to those who can boast of blazing-fast graphics cards, the most powerful processors, the highest-resolution monitors, and the coolest decorative lighting. They are not bestowed upon those crowing about the energy efficiency of their system.... Read more
April 14, 2015
Standards body approves Berkeley Lab’s method to mimic natural soiling of roofing materials.Cool roofs can help keep buildings cool, thus lowering the building’s energy use, while also mitigating the urban heat island effect by reflecting sunlight away from buildings and cities. But as cool roofs age and get soiled, how much of their reflectance do they lose?A collaboration led by scientists... Read more
November 6, 2014
A new website intended to help architects, building engineers, and manufacturers develop and make better use of energy-efficient glazing and façade systems in commercial buildings is now available. Developed by the Windows and Envelope Materials Group of the Environmental Energy Technologies Division (EETD), at Lawrence Berkeley National Laboratory (Berkeley Lab), "Low Energy, High Performance... Read more
September 27, 2014
How cool is your roof? If you live in the California cities of Bakersfield, Long Beach, Los Angeles, San Francisco, or San Jose, you may be able to find out.Scientists from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have created an interactive map that displays the solar reflectance (also known as albedo) of individual roofs in these five West Coast cities.You... Read more
April 14, 2014
The Intergovernmental Panel on Climate Change's Working Group III, addressing the mitigation of climate change, has issued an executive summary of its Fifth Assessment report. The report updates policymakers on the technical and socio-economic aspects of climate change, including technologies and policies that can reduce impacts.According to its website, "The IPCC Working Group III assesses all... Read more
April 3, 2014
The editors of Engineering News-Record magazine have given Stephen Selkowitz is the 2014 Award of Excellence "for relentlessly working to reduce the carbon footprint of buildings and for moving the nation toward better building performance, as well as for being the master of commercializing energy-efficient building technologies and the mastermind of FLEXLAB®," the Facility for Low-Energy... Read more
March 3, 2014
It is well-documented that prodigious amounts of energy and money have been saved by energy-efficient building technologies. California alone has saved billions of dollars, prevented tons of pollutants, and avoided having to build additional power plants thanks to its efficiency efforts. Still, the effectiveness of these technologies is dependent on building occupants not only using them, but... Read more
January 8, 2014
Green Light New York and Lawrence Berkeley National Laboratory have partnered to develop a pair of "Living Lab" demonstration projects that will deploy innovative lighting, daylighting and shading systems in working New York City office spaces. The team has secured the participation of two Fortune 100 companies, each of which have committed to using an individual floor of their flagship NYC... Read more
December 14, 2013
See below for a link to "Cool Roofs Rising" from Ensia, an online magazine from the Institute on the Environment at the University of Minnesota.... Read more
October 23, 2013
October-November Special Focus: Energy Efficiency, Buildings, and the Electric Grid Fifty-seven percent of U.S. servers are housed in server closets, server rooms, and localized data centers, in what are commonly referred to as small server rooms, which comprise 99.3 percent of all server spaces in the U.S. While many mid-tier and enterprise-class data centers are owned by large corporations that... Read more
October 22, 2013
October-November Special Focus: Energy Efficiency, Buildings, and the Electric GridHonda Motor Company Inc is proceeding with plans to build a Smart Home in Davis, California, to demonstrate the latest in renewable energy technologies and energy efficiency. The home is expected to produce more energy than is consumed, demonstrating how the goal of “zero net energy” can be met in the near term... Read more
October 17, 2013
The 40th anniversary of the founding of the Environmental Energy Technologies Division at Berkeley Lab is November 1, 2013.Every Thursday during October, we’ll look back at a significant energy-efficient technology developed by EETD and its research partners.This WeekEETD has developed energy-efficient technologies that are all around you, saving energy in your home and workplace. One of those... Read more
October 1, 2013
October-November Special Focus: Energy Efficiency, Buildings, and the Electric Grid'Other' is the fastest growing energy use in residential and commercial buildings—devices such as computers, displays, printers and other office equipment, as well as small household appliances ranging from kitchen electrics like coffee makers, toasters, and mixers to fans, clocks and portable space heaters. To... Read more
September 29, 2013
PORTLAND – On hot summer days, 74-year-old HelenRuth Stephens doesn't dare leave her apartment. Not to get the mail or take out the trash."You don't do it because you'll be breathless by the time you get back," she says.She suffers from asthma and chronic obstructive pulmonary disease. Both affect her lungs. Hot weather drains her energy, she says, and makes it hard for her to breathe.Stephens... Read more
September 26, 2013
Building4change, a website that addresses to sustainability, innovation and best practice in the built environment, has named 13 people as Stars of Building Science Virtual Academy of Excellence for the year 2013. One of them is Stephen Selkowitz of the Environmental Energy Technologies Division. Cited as an “internationally recognized expert in window technologies, façade systems and... Read more
September 4, 2013
Daylighting is the strategy of admitting light from the sun and sky to reduce use of electric lighting in buildings. Since lighting energy use represents 13 percent of the total primary energy used by buildings in the United States or 5.42 quadrillion Btus in 2010, these technologies can play a significant role towards meeting U.S. and state energy-efficiency and greenhouse gas emission reduction... Read more
February 5, 2013
Designing a building holistically, and making sure that its components and systems work together according to design intent, can pay big dividends in energy savings and occupant satisfaction, according to a study by scientists at the Lawrence Berkeley National Laboratory (Berkeley Lab) of the performance of The New York Times Building in New York City.Measured results from the post-occupancy... Read more
January 22, 2013
California's residential ventilation requirements in Title 24 (the State energy code for buildings) are designed to balance healthy home ventilation with efficient energy use, but some studies suggest that whole-house ventilation systems don't always meet their expected performance in either category. Commissioning, a systematic evaluation of the installed system to identify deficiencies and offer... Read more