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November 7, 2013
Building 90, an 89,000-square foot office building at Berkeley Lab, served as the commercial setting for the miscellaneous and electronic loads (MELs) study. 460 meters were placed throughout the building to serve as a representative sample of a wide range of device types. | Photo courtesy of Berkeley Lab.
Energy Efficiency: Helping Home Owners and Businesses Understand Energy Usage

Learn how a team at Berkeley Lab is helping consumers and businesses understand their energy use and save money.

November 6, 2013
Join the American Energy Data Challenge

Today the Energy Department launches a four-part challenge to spur the development of new apps, tools and services that make high-value open energy data more accessible to the public.

November 6, 2013
Robin Eckstein, one of Champions honored at the White House Champions of Change event, speaks about her experience driving trucks while serving in Iraq, and how this has influenced her work in advocating for comprehensive clean energy reform.
Champions of Change: Veterans Advancing Clean Energy

Yesterday, Secretary Moniz honored veterans advancing clean energy and climate security at a White House "Champions of Change" event.

November 6, 2013
Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by <a href="http://energy.gov/contributors/sarah-gerrity">Sarah Gerrity</a>.
Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun

Launching the second round of the Rooftop Solar Challenge, aimed at making it easier, faster and cheaper for more American's to go solar.

November 5, 2013
Researchers at the Energy Department's National Renewable Energy Laboratory are developing innovative new window technology that helps improve occupants' comfort and cuts energy use. | Photo courtesy of Pat Corkery, NREL.
New Window Technology Saves Energy and the View

With funding from the Energy Department, the National Renewable Energy Laboratory is working to develop a new insulating window film that preserves the view while increasing occupants’ comfort and saving energy.

November 4, 2013
Transformative Science: Energy Efficiency at the National Labs

This month on energy.gov, we're featuring the Energy Department's National Labs and their work in energy efficiency: the technologies they've developed, the research they've conducted and the cutting-edge facilities they've built.

November 1, 2013
Pumpkin Power: Turning Food Waste into Energy

With the passing of Halloween, millions of pumpkins go from decorations to trash. But some utility districts are turning discarded pumpkins and other food waste into renewable electricity.

November 1, 2013
The DOE's SLAC linear accelerator, or "linac," stretches in a straight line for two miles across the hills of Stanford University in Menlo Park, California. The building shown in the photo -- known as the "klystron gallery" because it houses machines called klystrons that power the accelerator -- is the longest modern building in the world. The particle accelerator itself is a copper tube roughly 20 feet below ground and has been used to accelerate electrons and positrons for over 50 years of world-leading scientific experiments. | Photo courtesy of SLAC National Accelerator Laboratory.
Photo of the Week: The Longest Building in the World

Check out our favorite energy-related photos!

October 31, 2013
The California Valley Solar Ranch produces clean, renewable electricity at the scale of traditional power plants. | Photo courtesy of SunPower.
Solar Goes Big: Launching the California Valley Solar Ranch

The clean energy revolution continues to build momentum as one of the world's largest solar photovoltaic power plants opens for business.

October 31, 2013
SLIDESHOW: Learning Valuable Lessons About Energy with Scouts

During National Energy Action Month, Girl Scouts and Boy Scouts visited the Energy Department to learn about energy and earn merit badges and patches.