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August 29, 2013
If accepted, a new energy efficiency rule on walk-in coolers and freezers proposed by the Energy Department could cut energy bills by up to $24 billion over 30 years. | Photo by Lynn Billman, NREL.
Historic Energy Efficiency Rules Would Save Consumers Money and Cut Carbon Emissions

Two proposed Energy Department energy efficiency rules could save $28 billion in energy costs over the next three decades.

August 28, 2013
Thanks to the Energy Department's Energy Efficiency and Conservation Block Grant Program, the city of Dallas has improved the efficiency of more than 200 city-owned buildings, saving $1 million a year in energy costs. | Photo courtesy of the City of Dallas.
Dallas: Building a Greener City

Learn how Dallas is becoming a leader in sustainability.

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 7, 2013
Charting the Future of Energy Storage

As we continue to incorporate more renewable energy into the grid, technologies that store energy like batteries will be key to providing a continuous flow of clean energy even when the wind isn’t blowing and the sun doesn’t shine.

August 1, 2013
Secretary Moniz: Biofuels Important to America's Energy Future

Watch the video of Secretary Moniz speaking about the importance of investing in biofuels to combat the effects of climate change and reduce our dependence on foreign oil.

July 29, 2013
Taking Battery Technology from the Lab to the Big City

A small New York City startup is hoping it has the next big solution in energy storage. A video documents what the company's breakthrough means for the future of grid-scale energy storage.

July 25, 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">Data compiled by Yan (Joann) Zhou at Argonne National Laboratory. (*) Sales from the second quarter of 2013 for Tesla Model S are based off of estimates provided by the Hybrid Market Dashboard. Data updated 1/13/2014.</div></div></div>
Visualizing Electric Vehicle Sales

Our new interactive chart lets you explore the continued growth of electric vehicle sales.

July 24, 2013
By applying pressure to the generator, one is able to generate about six nanoamperes of current and 400 millivolts of potential -- roughly a quarter of the voltage of a AAA battery and enough to flash a number on the small LCD screen. | Photo courtesy of Seung-Wuk Lee's lab at Lawrence Berkeley National Laboratory.
R&D 100: Battery Technology Goes Viral

Learn how Energy Department researchers are harnessing power from an unlikely source -- viruses.

July 19, 2013
Yesterday, representatives from the Energy Department, the European Commission and Argonne National Lab celebrated the launch of the Electric Vehicle-Smart Grid Interoperability Center. From left to right: Mr. Giovanni De Santi, Director of the JRC Institute for energy and transport (IET); Mr. Dominique Ristori, Director-General of the European Commission's Joint Research Centre (JRC); Dr. Phyllis Yoshida, DOE Deputy Assistant Secretary for Europe, Asia and the Americas; Dr. Eric Isaacs, Director of Argonne National Laboratory. | Photo courtesy of Argonne National Lab.
Energy Department Partners with EU on Electric Vehicle and Smart Grid Coordination

As electric vehicle sales continue to grow, vehicles, charging stations and communication systems will need to work in unison with the electric grid. Learn what the Energy Department is doing to ensure this happens.

July 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>
EV Sales Skyrocketing. eGallon Holds Steady.

We're updating monthly eGallon numbers and highlighting the continued growth of electric vehicle sales.