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February 21, 2014
On June 6, 2013, researchers at Jefferson Lab completed the construction of the Forward Calorimeter in Hall D. The calorimeter was built to measure the energy of particles as they are created inside the target area and strike against lead glass blocks that make up the calorimeter. Upon striking the calorimeter, the particles will create a shower of light, which will then be digitized and used to measure energy of particles.
 
In this photo, John Leckey, a postdoctoral researcher from Indiana University, is assembling the Forward Calorimeter in Jefferson Lab's newest experimental area, Hall D. Leckey helped assemble the calorimeter along with Manuel Lara and Daniel Bennett, postgraduate students from Indiana University. The calorimeter contains 2,800 lead glass blocks.
 
| Photo courtesy of Jefferson National Laboratory.
Photo of the Week: The Forward Calorimeter

Check out our favorite energy-related photos!

February 21, 2014
At this year's Daytona 500, four fuel cell generators will power some of the broadcast cameras and spotlights, demonstrating how the technology could help NASCAR save money on fuel costs. This technology was beta-tested during the IMSA Rolex 24 race weekend last month. | Photo courtesy of P.T. Jones, Oak Ridge National Lab.
NASCAR Green Gets First Place in Daytona 500

Behind the scenes at the Daytona 500, fuel cells will be providing NASCAR with a cleaner, more efficient option for powering broadcast cameras and lights.

February 20, 2014
The photo above shows one of the beam lines at Berkeley Lab's Advanced Light Source, a national user facility available for use by scientists and researchers from the federal government, academia and the private sector. | Photo courtesy of Roy Kaltschmidt, Berkeley Lab.
Amazing Materials and the Emerging Field of Spintronics

Berkeley Lab and SLAC have discovered a 3D counterpart to graphene with potentially wide-ranging applications.

February 20, 2014
Construction work inside the Vogtle 3 and 4 module assembly building. | Photo courtesy of Georgia Power Company.
At Vogtle, Big Results with Nuclear Power

Supporting the construction of the first new nuclear power plant to be built in the U.S. in nearly thirty years.

February 20, 2014
At the 2013 ARPA-E Energy Innovation Summit Technology Showcase, the U.S. Marine Corps table featured a special vest with built-in solar cells, while the U.S. Army table highlighted a vest with a built-in fuel cell battery -- two ways to help efficiently power technology for American soldiers. | Photo by <a href="/node/379579">Sarah Gerrity</a>, Energy Department.
Energy Innovators to Convene for 2014 ARPA-E Summit

What you can expect to see at this year's ARPA-E Summit.

February 18, 2014
An artist's conception of the measurement scale of the universe. Baryon acoustic oscillations are the tendency of galaxies and other matter to cluster in spheres, which originated as density waves traveling through the plasma of the early universe. The clustering is greatly exaggerated in this illustration. The radius of the spheres (white line) is the scale of a "standard ruler" allowing astronomers to determine, within one percent accuracy, the large-scale structure of the universe and how it has evolved. | Image courtesy of Zosia Rostomian, Lawrence Berkeley National Laboratory.
A Map Made in the Heavens

Scientists pair precise observations with incredible computing power to create an astonishingly accurate map of the universe.

February 14, 2014
The Ivanpah Solar Energy Generating System was dedicated on Thursday, February 13, 2014. | Photo courtesy of Mingasson/Getty Images for Bechtel.
Making Solar Power History at Ivanpah

See photos and relive the best moments from the dedication events for Ivanpah, the world's largest concentrating solar power plant.

February 14, 2014
Located in the Mojave Desert, 40 miles southwest of Las Vegas, the Ivanpah Solar Electric Generating System is the largest solar thermal energy facility in the world, with 392 MW of capacity – meaning it can produce enough renewable electricity to power nearly 100,000 homes. It uses 173,500 heliostat mirrors spread over approximately 3,500 acres, focusing solar energy on boilers located atop three solar power towers, generating steam to turn a conventional steam turbine. The facility is owned by NRG Solar, Google and BrightSource Energy. The Energy Department provided a $1.6 billion loan guarantee to the project.
 
Pictured here is an aerial perspective of the nearly completed Ivanpah Solar Power Facility, taken in April 2013. | Photo courtesy of Gilles Mingasson/Getty Images for Bechtel.
Photo of the Week: Ivanpah Solar

Check out our favorite energy-related photos!

February 13, 2014
<div class="field field-name-field-map-byline field-type-text-with-summary field-label-hidden"><div class="field-items"><div  class="field-item odd">Data provided by <a href="/exit?url=http%3A//www.csp-world.com/" rel="nofollow">CSP World</a>. Map by <a href="http://energy.gov/contributors/daniel-wood">Daniel Wood</a>.</div></div></div>
MAP: Concentrating Solar Power Across the United States

Explore our latest map, charting the location of concentrating solar power plants across the country.

February 13, 2014
Solar Decathlon 2015: Let the Competition Begin

We're officially kicking off Solar Decathlon 2015 with the announcement of 20 new collegiate teams. Find out who will compete!