Renewable and Alternative Energy

People have developed systems to harvest and store energy from sources such as wind, sunlight, and tidal action. Many of these installations are visible from orbit.
Aswan High Dam
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Aswan High Dam

The vast dam in southern Egypt is one of the largest earthen embankment dams in the world.

Published Jun 8, 2015

Image of the Day Water Human Presence

Topaz Solar Farm, California
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Topaz Solar Farm, California

The new 550 megawatt facility in California produces enough electricity to power 180,000 homes.

Published Mar 5, 2015

Image of the Day Human Presence

The London Array
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The London Array

The world’s largest wind farm was planted just off of the mouth of the River Thames.

Published Jan 21, 2014

Image of the Day Atmosphere Water Human Presence

Solar Farm in Dunhuang
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Solar Farm in Dunhuang

An oasis along the ancient Silk Road has become a hub of solar power production in China. These images show the expansion of solar power facilities between 2006 and 2012.

Published Feb 1, 2013

Image of the Day Human Presence

Piedra del Águila Dam Reshapes the Limay River
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Piedra del Águila Dam Reshapes the Limay River

Acquired in 1986 and 1998, these natural-color images show Argentina’s Limay River before and after the creation of a dam and reservoir.

Published Aug 11, 2012

Image of the Day Land Human Presence

Eastmain Reservoir, Quebec
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Eastmain Reservoir, Quebec

Acquired May 19, 2011, this natural-color scene shows a work-in-progress hydroelectric project along the Rupert River in Quebec, Canada.

Published Aug 7, 2011

Image of the Day Land Snow and Ice

Solar Towers near Seville, Spain
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Solar Towers near Seville, Spain

In a patchwork of agricultural fields outside Seville, Spain, stand two heliostats, which generate solar power by concentrating sunlight to heat water into steam, which is used to generate electricity.

Published Sep 25, 2009

Image of the Day Heat Human Presence

Three Gorges Dam, China
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Three Gorges Dam, China

This image from April 15, 2009, is one of the first images that astronauts on the International Space Station have been able to capture of the flooding behind the Three Gorges Dam in China.

Published Jun 8, 2009

Image of the Day Human Presence

Manantali Reservoir, Mali
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Manantali Reservoir, Mali

The Bafing River travels through Guinea and Mali, and eventually joins with the Senegal River in western Africa. In the 1970s, drought struck the region, prompting a multinational effort to develop irrigation and power generation.

Published Dec 28, 2008

Image of the Day Land Human Presence

Global Ocean Wind Energy Potential
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Global Ocean Wind Energy Potential

Wind energy has the potential to provide 10 to 15 percent of the world’s future energy, according to Paul Dimotakis, chief technologist at NASA’s Jet Propulsion Laboratory.

Published Jul 16, 2008

Image of the Day

Wind Farm in San Gorgonio Pass
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Wind Farm in San Gorgonio Pass

This image shows wind turbines in the San Gorgonio Pass, which cuts a wide gap through the San Bernardino Mountains to the north and the San Jacinto Mountains to the south.

Published Jul 7, 2005

Image of the Day Human Presence