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The EERE Blog includes updates to current Office of Energy Efficiency and Renewable Energy (EERE) projects, interviews with energy experts, and success stories about EERE’s technology offices and national laboratories. Subscribe to the blog email list.

December 19, 2016
Test Center Powers Up Wind Tech

When the wind turbine industry needs to test out new designs, it turns to the National Wind Technology Center at the National Renewable Energy Laboratory.

December 16, 2016
EERE Blog
EERE Success Story—The Future's So Bright, You've got to Wear Shades: The Roles of the Department of Energy, National Laboratories, and Industry in Evolving the Solar Market

​In 1975, the U.S. Department of Energy (DOE) decided to harness the power of the sun, launching the Solar Energy Research Institute, which later became the National Renewable Energy Laboratory (NREL). Over the subsequent 40 years, DOE, its Solar Energy Technologies Office, and the national laboratories have engaged with innovators, businesses, and entrepreneurs to channel one of our planet’s greatest resources into sustainable, clean, and cost-effective energy.

December 15, 2016
Sandia researcher Isaac Ekoto, left, and former postdoc Will Colban prepare to conduct laser-based velocity measurements at the Combustion Research Facility. The measurements are used to help understand the flow features involved in the creation of in-cylinder carbon monoxide distributions in automotive diesel engines. | Photo Courtesy: Sandia National Laboratory
EERE Success Story—Cleaner, Lower Cost, and More Efficient: How Cummins Created a Global Marketplace for Better Diesel Engines through Partnership with the National Labs

Cummins approached researchers at three of the national laboratories—Sandia National Laboratories (SNL), Los Alamos National Laboratory (LANL), and Lawrence Livermore National Laboratory (LLNL)—to discuss the possibility of a partnership. The labs possessed unique expertise in laser diagnostics and computer modeling and housed unique state-of-the-art facilities, including specialized measurement equipment and extremely fast supercomputers

December 13, 2016
Photo Courtesy | Sandia National Laboratory
EERE Success Story—Department of Energy Harnesses the Power of Wind

The U.S. Department of Energy’s (DOE’s) Wind Energy Technologies Office addresses a number of pressing energy needs, from improving technology performance to advancing wind turbines’ design and size to facilitating grid integration of renewable energy. Since wind energy research began in the United States in the 1970s, DOE has brought together industry, academia, and key research institutions to help overcome wind energy deployment challenges related to cost, design, materials, efficiency, and environmental stewardship.

December 13, 2016
Photo Courtesy | Lawrence Berkeley National Laboratory
EERE Success Story—Aeroseal and Lawrence Berkeley National Laboratory Develop Technology to Find and Fill Building Energy Leaks

Many residential and commercial buildings leak air like sieves, wasting up to 40% of their heating and cooling energy. The primary reason for this energy loss is gaps and holes that exist in buildings’ air ducts. Getting an airtight seal on every connection can be difficult; even with skillful installation and generous applications of mastic (the putty used to seal joints), leakage still occurs. Therefore, most people resign themselves to losing money and enduring uneven temperatures. Mark Modera, an expert in energy performance at the Lawrence Berkeley National Laboratory (LBNL), however, was convinced there had to be a better way.

December 12, 2016
The Additive Manufacturing Integrated Energy (AMIE) demonstration project, a 3D-printed house and car that can share power, is one example of the amazing things that happen when national labs and industry combine their power. | Photo Courtesy: Oak Ridge National Laboratory
From the Lab and Beyond: Celebrating the Impact of our National Labs

The U.S. Department of Energy’s (DOE) national laboratories give the United States an undeniable strategic advantage in the global marketplace. The national labs use the world’s most advanced technology and equipment, staffed by many of the best and brightest scientific minds, to perform groundbreaking scientific research. Each year, they develop more than 1,800 new inventions and receive more than 400 patents.

December 11, 2016
Pictured above is an advanced inverter demonstration site in Haverhill, MA. Photo courtesy of Electric Power Research Institute.
EERE Success Story—EPRI Lays Foundation for Smart Inverter Technology

Advanced inverters are a critical enabler of high solar photovoltaic (PV) penetrations because of their smart functionalities and ability to maintain a balanced grid. Deploying advanced inverters with smart grid capabilities in the field, however, is easier said than done. Thanks to the work of the Electric Power Research Institute (EPRI), the solar industry has a solid foundation for both using and improving inverter technology.

December 9, 2016
Helping National Lab Innovators Create 21st Century Solutions

Now — more than ever — the United States needs to tap into the extensive capabilities of its national labs to ensure American competitiveness in the global marketplace. The DOE Lab-Corps program is doing exactly that.

December 8, 2016
Nuclear energy is the largest zero carbon electricity source on the grid today, while renewable energy is the fastest growing form of any electricity source over the last two years.
Changing the Game by Linking Nuclear and Renewable Energy Systems

Nuclear and renewable technologies are crucial parts of the United States’ energy system, providing clean, secure, abundant power. Nuclear energy is the largest zero carbon electricity source on the grid today, while renewable energy is the fastest growing form of any electricity source over the last two years. But, like chocolate and peanut butter, the question is — can these two great technologies be even better together? To help answer this question, the Department of Energy is examining the benefits and potential synergies of energy systems that feature both nuclear and renewable technologies.

December 6, 2016
EERE Blog
EERE Success Story—L Prize™ Competition Drives LED Lighting Innovation, Energy Savings

As light-emitting diode (LED) performance continues to improve and prices continue to drop, adoption continues to increase. According to the latest Department of Energy (DOE) Revolution…Now report, total installation of LED A-type bulbs (the most common type) exceeded 200 million last year, growing 160% over 2014, and now accounting for 6% of all currently installed A-type lamps. That growth has been enabled by a 94% reduction in cost since 2008.

December 5, 2016
EERE Blog
EERE Success Story—Energy Department Toolkits Help Businesses Save Money from Energy Efficiency Upgrades

The toolkit integrates new and existing technical tools that give small and medium commercial buildings the ability to analyze and evaluate measures for HVAC equipment, interior equipment, lighting and/or whole building measures.

December 2, 2016
The Portable Window Energy Meter — jointly developed by researchers from Brazil and the United States — can reduce energy losses in buildings by measuring and assessing the energy performance of windows without removing them from their site.
U.S.-Brazil Collaboration Leads to Innovative Device That Reduces Energy Use in Buildings

Researchers from the United States and Brazil have developed a new device that can reduce energy losses in buildings by measuring and assessing the energy performance of windows without removing them from their site.

December 1, 2016
Thanks to a 2012 State Energy Program Competitive Award, three Arizona wastewater treatment facilities underwent partial energy upgrades. A facility in Phoenix, pictured here in before-and-after shots, undertook an LED retrofit. The facility is already saving energy and money. 
Energy Department Helping Arizona Conserve Energy at Water Resource Recovery Facilities

Funding support from the Energy Department's State Energy Program is being used by some states to retrofit water treatment facilities and wastewater systems to use less energy because these facilities can be responsible for as much as 35% of municipal energy use.

December 1, 2016
Michael Berube (left), the new director of the Vehicle Technologies Office, and Alan Liby, from Oak Ridge National Laboratory, look at a piece of partially oxidized material in the process of being converted into carbon fiber during a recent visit to the national laboratory in Tennessee.
Meet Michael Berube: New Vehicle Technologies Director Has a Passion for Transportation

Michael Berube, the new director of the Energy Department’s Vehicle Technologies Office, sat down recently to discuss his entry into vehicles, where we’re headed, and a love of off-roading.

November 30, 2016
Crude Science

Researchers at Pacific Northwest National Laboratory developed technology that can convert human waste into sustainable biofuel.

November 30, 2016
This house was designed and constructed by students from Missouri University of Science and Technology as part of Solar Decathlon 2015 in California. | <em>Photo by Thomas Kelsey/U.S. Department of Energy Solar Decathlon</em>
Around the World with Solar Decathlon

The U.S. Department of Energy Solar Decathlon competition now spans five continents — North America, South America, Europe, Africa and Asia — bringing together collegiate teams from around the world to address some of the most pressing global energy issues of our time.

November 30, 2016
The Salton Sea region is one of North America's prime sources of lithium. | Photo Courtesy: Pure Energy
EERE Success Story—Geothermal Technology to Help Meet High Lithium Demand

In 2014, the Energy Department’s Geothermal Technologies Office introduced its mineral recovery research and development program to identify methods of recovering lithium and rare earth elements found in geothermal fluids. This year the effort expanded to include evaluation of comparable methods in other industries and the potential to translate successful methodologies for use in geothermal mineral recovery.

November 30, 2016
Spirit, a 20-year-old bald eagle, flies at the National Wind Technology Center in Boulder, Colorado. | <em>Photo by Lee Jay Fingersh/NREL</em>
3 Ways Energy Department Research Will Help Eagles Coexist with Wind Energy Deployment

Building energy infrastructure that keeps wildlife safe is a key concern at the U.S. Department of Energy, which is why we have funded six teams to improve technologies that will protect eagles sharing airspace with wind turbines.

November 29, 2016
Precast Dam Structure | Photo Courtesy French Development Enterprises
EERE Success Story—Innovative "French Dam" Cuts Cost and Construction Time

With Energy Department support, French Development Enterprises, LLC, GEI Consultants, and Oldcastle Precast announced the successful construction of the first prototype of a “French Dam.”The prototype technology uses modular design—a term for structures that use multiple standardized components that integrate easily— to significantly cut construction time and cost.

November 29, 2016
So Hot Right Now: 12 Solar Photos That Will Take Your Breath Away

Overall utility-scale photovoltaic (PV) generated enough electricity last year to power more than 2 million homes. It’s also creating jobs – a lot of them. In 2015, the solar workforce grew at a rate 12 times faster than the overall economy and boasts a workforce of more than 200,000 domestic jobs.

November 28, 2016
Monhegan Island Light Station. | <em>Photo by Emerson Reiter, NREL</em>
Consider the Lobster and Electricity: Helping Meet the Energy Challenges of Maine's Small Islands

Most island communities do not have economies of scale or local fossil fuel resources, two key factors contributing to significant increases in energy costs relative to mainland peers. A case in point is two islands located off the coast of Maine—Isle au Haut and Monhegan, both of which are currently weighing their energy futures.

November 23, 2016
Forestry residues, switchgrass, and corn stalks are all examples of non-food biomass that can be used to make biofuels and bioproducts.
There Is a Cornucopia of Feedstock Options for Making Biofuels

Right now, biofuels and consumer products made from biomass are not commercially widespread. However, the Energy Department’s Bioenergy Technologies Office (BETO) is funding research and development to help lower their costs so that private industry can produce and sell them on the commercial market.

November 22, 2016
EERE Blog
4 Tips to Prevent a Thanksgiving Energy Bill Spike

The Thanksgiving holiday is wonderful for getting together with friends and family but not very good for energy conservation because it contributes to an annual increase in energy use due to lights staying on longer, and appliances operating more frequently. Here are some energy saving tips to lower the unwelcome tradition of higher energy bills following Thanksgiving.

November 22, 2016
Quiz: How Much Do You Know About Hydrogen and Fuel Cells?

Hydrogen and fuel cell technologies power cars, buildings and more. But how much do you know about them? Test your knowledge with this quiz!

November 21, 2016
The main section of the Novomer system which includes a reactor, membrane separation, polymerizer, and controls needed to run the fully automated system which converts waste carbon dioxide into valuable chemicals.
EERE Success Story—Converting Waste to Valuable Materials and Chemicals

For chemical manufacturers, waste usually equates to a loss – loss of time, money, opportunity, or all of the above. Carbon dioxide (CO2) is a byproduct of many manufacturing processes, and also contributes to greenhouse gas emissions. If manufacturers can find a way to convert waste CO2 into different valuable chemicals, they can save money and reduce harmful emissions into the environment.