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November 22, 2013
Edison vs. Tesla
November 22, 2013
Edison vs. Tesla: Toasting a Rivalry That Drove Innovation

Test your knowledge of energy inventors Thomas Edison and Nikola Tesla with our downloadable "Who Said It?" quote quiz cards.

November 21, 2013
This week, the Energy Department's digital team has been focusing on the rivalry between two of history's most important energy-related engineers: Thomas Edison and Nikola Tesla. Edison and Tesla's developments in electric power generation and distribution made possible many later breakthroughs. This 1951 photo shows a simple string of four 100-watt light bulbs powered by the first useful electricity ever produced by nuclear power, generated on December 20, 1951, by Argonne's Experimental Breeder Reactor 1. | Photo courtesy of Argonne National Laboratory.
Photo of the Week: Bright Ideas

Check out our favorite energy-related photos!

November 20, 2013
Electrical transmission lines cross a snow-covered field in Dallas Dam, Oregon. | Photo courtesy of the Energy Department Flickr page.
The War of the Currents: AC vs. DC Power

Nikola Tesla and Thomas Edison played key roles in the War of the Currents. Learn more about AC and DC power -- and how they affect our electricity use today.

November 18, 2013
Nikola Tesla in or around 1890, when the inventor was in his mid-30s. | Photo is in the public domain. Image courtesy of the Library of Congress.
Top 11 Things You Didn't Know About Nikola Tesla

Learn facts about Nikola Tesla, one of history's most important energy-related inventors and engineers.

October 29, 2013
Workers repair power lines in the Mid-Atlantic shortly after Hurricane Sandy. | Photo courtesy of the Energy Department.
Hurricane Sandy One Year Later: Rebuilding Stronger, More Resilient Communities

The Energy Department continues to take actions to protect our energy infrastructure, adapt to climate change and build partnerships to make communities across the country stronger and more resilient.

October 21, 2013
FACT SHEET: Energy Department Actions to Deploy Combined Heat and Power, Boost Industrial Efficiency

Underscoring President Obama’s Climate Action Plan to cut harmful emissions and double energy efficiency, the Energy Department is taking action to develop the next generation of combined heat and power (CHP) technology.

August 19, 2013
<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">The eGallon price is calculated using the most recently available state by state residential electricity prices. The state gasoline price above is either the statewide average retail price or a multi-state regional average price reported by EIA. The latest gasoline pricing data is available on EIA’s webpage. Find out more at www.energy.gov/eGallon.</div></div></div>
eGallon and Electric Vehicle Sales: The Big Picture

This month, we're updating eGallon prices and taking a look at how the U.S. electric vehicle market continues to strengthen.

August 12, 2013
Economic Benefits of Increasing Electric Grid Resilience to Weather Outages

In June 2011, President Obama released A Policy Framework for the 21st Century Grid which set out a four-pillared strategy for modernizing the electric grid. The initiative directed billions of dollars toward investments in 21st century smart grid technologies focused at increasing the grid’s efficiency, reliability, and resilience, and making it less vulnerable to weather-related outages and reducing the time it takes to restore power after an outage occurs.

July 31, 2013
Did you know: a typical bolt of lightning is about 3 miles long and heats the air immediately surrounding the bolt to over 20,000 degrees Celsius? That's three times hotter than the surface of the sun. For many Americans, summer isn't complete without an exciting thunderstorm to break up the heat. This electrifying photo was taken by Sandia Labs photographer Randy Montoya during a summer storm on July 21, 2013. The lightning illuminated the Redstone rocket that stands in front of the National Museum of Nuclear Science & History in Albuquerque, New Mexico. | Photo courtesy of Randy Montoya, Sandia National Laboratory.
Photo of the Week: A Storm in Albuquerque, New Mexico

Check out our favorite energy-related photos!