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A Glow-In-The-Dark Bicycle Path By Studio Roosegaarde Inspired By Van Gogh

A Glow-In-The-Dark Bicycle Path By Studio Roosegaarde Inspired By Van Gogh | EarthEnergy | Scoop.it
Dutch designer Daan Roosegaarde has created an illuminated bicycle path based on Vincent van Gogh’s painting The Starry Night. The solar-powered path consist of “thousands of twinkling stones” covered with a special paint that absorbs energy during the day…

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New Paradigm for Solar Cell Construction Demonstrated by Penn-Drexel Researchers

New Paradigm for Solar Cell Construction Demonstrated by Penn-Drexel Researchers | EarthEnergy | Scoop.it
For solar panels, wringing every drop of energy from as many photons as possible is imperative.
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Scientists unveil energy-generating window

Scientists unveil energy-generating window | EarthEnergy | Scoop.it
Scientists in China said Thursday they had designed a 'smart' window that can both save and generate energy, and may ultimately reduce heating and cooling costs for buildings.
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World record solar cell with 44.7% efficiency

World record solar cell with 44.7% efficiency | EarthEnergy | Scoop.it
German Fraunhofer Institute for Solar Energy Systems, Soitec, CEA-Leti and the Helmholtz Center Berlin announced today that they have achieved a new world record for the conversion of sunlight into electricity using a new solar cell structure with...
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Are window blinds the future of power generation?

Are window blinds the future of power generation? | EarthEnergy | Scoop.it
Imagine a future where you run household appliances with electricity generated by window blinds. Such a future might seem far-fetched, but not to Deakin University PhD student Gayathri Devi Rajmohan.
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Cleaner, more efficient ways to deliver goods in Europe's cities

Cleaner, more efficient ways to deliver goods in Europe's cities | EarthEnergy | Scoop.it
Urban freight transport is a major contributor to traffic congestion in Europe's cities. This in turn slows down deliveries, leading to increased costs for freight transporters and longer wait times for their customers.
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Children risk their lives in Tanzania’s gold mines to help families

Children risk their lives in Tanzania’s gold mines to help families | EarthEnergy | Scoop.it
Children as young as eight are mining in grim conditions in Africa's fourth largest gold producing country.

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Smart energy to power refugee camps

Smart energy to power refugee camps | EarthEnergy | Scoop.it
Rolling out renewable and smart energy solutions in refugee camps could dramatically improve the well being of millions of refugees world-wide. Working in collaboration with the UNHCR, an EPFL Master's student is investigating how it could be done.
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A tale of two planets

A tale of two planets | EarthEnergy | Scoop.it
A new study in Nature Geoscience suggests that conditions on Earth could begin to resemble those on Venus if a runaway greenhouse effect were to occur.
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Banking on Youth finalist, Param Jagg, Launches Kickstarter Campaign! | Ashoka's Youth Venture

Banking on Youth finalist, Param Jagg, Launches Kickstarter Campaign! | Ashoka's Youth Venture | EarthEnergy | Scoop.it
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Electric Cars Are Doing Better Than Hybrids Did in Their First Three Years | MIT Technology Review

Electric Cars Are Doing Better Than Hybrids Did in Their First Three Years | MIT Technology Review | EarthEnergy | Scoop.it
The history of electric cars is long and full of false starts. But it looks like the latest wave won’t be turned back.
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Recipe for more environmentally friendly batteries

Recipe for more environmentally friendly batteries | EarthEnergy | Scoop.it
Norwegian scientists want to develop greener and more vigorous batteries, using inexpensive raw materials that are plentiful in Norway.
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Researchers find simple, cheap way to increase solar cell efficiency

Researchers find simple, cheap way to increase solar cell efficiency | EarthEnergy | Scoop.it
Researchers from North Carolina State University and the Chinese Academy of Sciences have found an easy way to modify the molecular structure of a polymer commonly used in solar cells.
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Could Sparkling Glow-in-the-Dark Pavement Replace Street Lights?

Could Sparkling Glow-in-the-Dark Pavement Replace Street Lights? | EarthEnergy | Scoop.it
This energy-efficient technology to illuminate pathways is environmentally friendly and beautiful.
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Our Oil Problems are Not Over!

Our Oil Problems are Not Over! | EarthEnergy | Scoop.it
If a person reads US newspapers, it is easy to get the impression that all of the world’s oil problems are over. But this is not really the case. An Overlooked Part of the Problem: High Oil Prices ...
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Innovative extraction method could make magnesium the new superhero in fuel efficiency

Innovative extraction method could make magnesium the new superhero in fuel efficiency | EarthEnergy | Scoop.it
US lab working on new method to extract magnesium from seawater.
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Passive Energy Harvesting—"Run, Don't Walk!"

Passive Energy Harvesting—"Run, Don't Walk!" | EarthEnergy | Scoop.it
Passive energy harvesting is an idea whose time may have arrived. With the increasing number of deployments of sensors to measure the environment both inside and outside buildings, as well as large...
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Integration success leads to easy curtailment | Windpower Monthly

Integration success leads to easy curtailment | Windpower Monthly | EarthEnergy | Scoop.it
Read Integration success leads to easy curtailment and other wind energy news & analysis on Windpower Monthly
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First Floating Solar Power Plant To Be Tested In India

First Floating Solar Power Plant To Be Tested In India | EarthEnergy | Scoop.it
A solar power plant which is intended to float is currently under development by a team which is led by SP Gon Choudhury, Director at Development Consultants Private Limited (DCL Group) and Vice Chairman at Calcutta Institute of Technology.
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Improving life by restoring nature - Stockholm Resilience Centre

Improving life by restoring nature - Stockholm Resilience Centre | EarthEnergy | Scoop.it
Advances the understanding of complex social-ecological systems with new insights into ecosystem management practices and long-term sustainability
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Meet the potential future of electricity generation

Meet the potential future of electricity generation | EarthEnergy | Scoop.it
Redox Power Systems LLC and University of Maryland researchers have partnered to deliver breakthrough fuel cell technologies for providing always-on electricity to businesses, homes and eventually automobiles, at about one-tenth the cost and...
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Forget Energy Efficiency, Think Exergy : Greentech Media

Forget Energy Efficiency, Think Exergy : Greentech Media | EarthEnergy | Scoop.it
Can a new definition of energy consumption help unlock efficiency?

If we want to understand how to wring more efficiency out of our energy usage, we need to redefine energy use in the first place, argues a new study from the American Council for an Energy-Efficient Economy.

Instead of thinking about energy overall, it is better to think about high-quality energy, or exergy, according to Skip Laitner, a visiting fellow at ACEEE. 

“What most people call energy, for example, is what physicists and engineers are more likely to call exergy, or high-quality energy that is available to do work,” he explains in a blog post. “Energy that is either wasted or useless -- in effect, energy that has no capacity to perform work such as the heat in the atmosphere -- is referred to as anergy.” Add up anergy and exergy and you get total energy. Capture that waste heat, however, and it becomes something useful.

Laitner found that just tracking energy commodities, for instance, accounted for only 80 percent of the exergy necessary to power the U.S. economy in 2010. By measuring and cutting the waste that it takes to complete a task, he argues, there will be greater opportunity for more useful work which can then in turn increase economic activity


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Stephane Bilodeau's curator insight, August 12, 2013 7:28 AM

"Using those definitions, Laitner found that exergy efficiency has slowed considerably in recent decades, from a 1.4 percent improvement per year from 1950 to 1980, to a 0.4 percent per year growth from 1980 to 2010. The smaller rate of improvement, Laitner argues, weakens the nation’s larger economic productivity. But, if the opposite were to happen -- if the rate of exergy efficiency increased -- the total exergy needed to power the economy could decline even as work continues to grow."

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This airplane runs on natural gas | SmartPlanet

This airplane runs on natural gas | SmartPlanet | EarthEnergy | Scoop.it
Is compressed natural gas the aviation fuel of the future? This plane is a start.
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Energy Efficiency Problems and Solutions | The Energy Collective

Energy Efficiency Problems and Solutions | The Energy Collective | EarthEnergy | Scoop.it
There have been discussions and debates regarding the so-called “energy efficiency gap," the apparent reality that many energy-efficiency technologies are not adopted even when it makes sense for consumers and businesses to make use of them.
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