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Saving the sunshine for night: solar fuels from artificial photosynthesis | SPIE Newsroom: SPIE

Saving the sunshine for night: solar fuels from artificial photosynthesis | SPIE Newsroom: SPIE | Science, Technology, and Current Futurism | Scoop.it
Direct visible light water splitting in a dye-sensitized photoelectrosynthesis cell makes hydrogen for energy storage.
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Can entrenched energy systems undergo rapid changes? - MIT News Office

Can entrenched energy systems undergo rapid changes? - MIT News Office | Science, Technology, and Current Futurism | Scoop.it
MIT Energy Conference explores recent dramatic developments in the energy landscape, and outlines the need for more.
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excerpt: "But as promising as these technologies may be, their widespread implementation remains years away, van der Hoeven suggested. While such storage systems might be competitive today in some places, battery costs need to come down considerably to be competitive in most situations, she said. And today, she pointed out, fossil fuels still account for 82 percent of global energy — a figure that hasn’t changed in two decades."

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Sweet success for bio-battery | Chemistry World

Sweet success for bio-battery | Chemistry World | Science, Technology, and Current Futurism | Scoop.it
Battery running on sugar holds double the energy of conventional lithium-ion batteries and could be powering phones in a matter of years
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The Long Emergency: An Interview with James Howard Kunstler - O'Reilly Broadcast

The Long Emergency: An Interview with James Howard Kunstler - O'Reilly Broadcast | Science, Technology, and Current Futurism | Scoop.it
We'll, let's just start by saying we've constructed an infrastructure for daily life with no future. That's pretty disturbing, isn't it? I customarily refer to this as the greatest misallocation off resources in the history of the world.
Sharrock's insight:

James Kunstler says: "Look, the airlines are dying. The next time oil goes up in price, or becomes scarce here-and-there, the industry will tank. Unless we rebuild the railroad system, we're not going anywhere in this large, continent-sized nation. How will people get from Chicago to St. Louis? Atlanta to Baltimore? How are we going to move stuff when the trucking industry gets into trouble? We're not paying attention. The lack of any discussion about rebuilding the railroad system shows how un-serious we are, what a nation of clowns we've become. Rebuilding the railroads is of tremendous importance. It will put scores of thousands of people to work on a meaningful project; the basic infrastructure is already there, rusting in the rain, waiting to be fixed; it requires no new technology, and getting it done would boost our confidence to address the other systems that we need to reform and rebuild -- namely agriculture, local-and-regional commerce, appropriately-scaled urban development, etc."

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Leslie Dewan | Innovators Under 35 | MIT Technology Review

Leslie Dewan | Innovators Under 35 | MIT Technology Review | Science, Technology, and Current Futurism | Scoop.it
What if we could build a nuclear reactor that costs half as much, consumes nuclear waste, and will never melt down?
Sharrock's insight:

This is awesome! A new, much safer and more energy-efficient design for atomic fission power plants.

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Will Microgrids Threaten Utilities? | EnergyBiz

Will Microgrids Threaten Utilities? | EnergyBiz | Science, Technology, and Current Futurism | Scoop.it
Most of us in the electric energy sector in the developed world tend to think of electricity as a basic human right, with instant availability at any hour.
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Is it possible that communities can get into the microgrid business like a kind of cottage industry for electricity? 

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A new renewable energy source? Device captures energy from Earth's infrared emissions to outer space

A new renewable energy source? Device captures energy from Earth's infrared emissions to outer space | Science, Technology, and Current Futurism | Scoop.it
When the sun sets on a remote desert outpost and solar panels shut down, what energy source will provide power through the night? A battery, perhaps, or an old diesel generator? Perhaps something strange and new. Scientists now envision a device that would harvest energy from Earth's infrared emissions into outer space. Heated by the sun, our planet is warm compared to the frigid vacuum beyond. Thanks to recent technological advances, the researchers say, that heat imbalance could soon be transformed into direct-current (DC) power, taking advantage of a vast and untapped energy source.
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Phys.Org Mobile: An end in sight in the long search for gravity waves

Phys.Org Mobile: An end in sight in the long search for gravity waves | Science, Technology, and Current Futurism | Scoop.it
By 1957 physicists had proved that they must carry energy and cause vibrations. But it was also apparent that waves carrying a million times more energy than sunlight would make vibrations smaller than an atomic nucleus.
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PNNL: News - Algae to crude oil: Million-year natural process takes minutes in the lab

PNNL: News - Algae to crude oil: Million-year natural process takes minutes in the lab | Science, Technology, and Current Futurism | Scoop.it
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How do you like the Long Emergency so far...........?

How do you like the Long Emergency so far...........? | Science, Technology, and Current Futurism | Scoop.it
James Howard Kunstler is one of my favourite writers.  No one has such a way with words, incisive, cynical, sarcastic, derisive, humorous, and also well written full of wit and clever imagery.........
Sharrock's insight:

This is not an optimistic TED talk. It does get one thinking and there is a need to research his conclusions and suggestions.

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DOE: "Coal-Direct Chemical Looping" - a new method of extracting energy from coal without burning it

DOE: "Coal-Direct Chemical Looping" - a new method of extracting energy from coal without burning it | Science, Technology, and Current Futurism | Scoop.it

Researchers at The Ohio State University (OSU) have successfully completed more than 200 hours of continuous operation of their patented Coal-Direct Chemical Looping (CDCL) technology - a one-step process to produce both electric power and high-purity carbon dioxide (CO2). The test, led by OSU Professor Liang-Shih Fan, represents the longest integrated operation of chemical looping technology anywhere in the world to date.

 

The test was conducted at OSU’s 25 kilowatt thermal (kWt) CDCL combustion sub-pilot unit under the auspices of DOE’s Carbon Capture Program, which is developing innovative environmental control technologies to foster the use of the nation’s vast coal reserves. Managed by the Office of Fossil Energy’s National Energy Technology Laboratory, the program’s specific goal is to develop CO2 capture and compression technologies that can reduce the capital cost and energy penalty of CO2 capture by more than half—equivalent to CO2 capture at less than $40 per metric ton—when integrated into a new or existing coal fired power plant. The successful test moves chemical-looping a step closer to full scale.

 

Chemical looping is an advanced technology that offers several advantages over traditional combustion. In a chemical-looping system, a metal oxide, such as an iron oxide, provides the oxygen for combustion. The metal oxide releases its oxygen in a fuel reactor with a reducing atmosphere, and the oxygen reacts with the fuel. The reduced metal cycles back to an oxidation chamber where the metal oxide is regenerated by contact with air. The metal oxide is then reintroduced into the fuel reactor, thus completing the loop. Since CO2 separation occurs simultaneously with coal conversion, chemical looping offers a low-cost scheme for carbon capture. The process can produce power, synthesis gas, or hydrogen in addition to high-purity CO2.

 

OSU reports that the CDCL plant’s 200+ hours of operation, using metallurgical coke and subbituminous and lignite coals, shows the robustness of its novel moving-bed design and non-mechanical valve operation. The combination resulted in nearly 100 percent solid fuel conversion and a CO2 stream more than 99 percent pure, making it applicable to CO2 enhanced oil recovery operations.

 

The OSU project is expected to benefit the DOE Carbon Capture Program by identifying oxygen carriers and a chemical looping process having the potential to control multiple pollutants, including sulfur dioxide (SO2) and nitrogen oxides (NOx), along with CO2. OSU research aims to identify potential barriers and optimize the CDCL technology and provide realistic data for future technological and economic analysis.


Via Dr. Stefan Gruenwald
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