International News

17.05.2013

Net Metering: A Net Positive

This article first appeared on Mosaic. by Rosana Francescato There’s been a lot of talk lately about net metering. What’s so special about net metering, and why all the fuss? Net metering is a simple concept that’s policy in 43 states. It’s like rollover minutes on a cell phone bill — it lets utility customers who install solar systems feed energy they generate into the grid if they don’t need it at the time they’re generating … Read MoreNet Metering: A Net Positive was originally published on: CleanTechnica. To read more from CleanTechnica, join over 30,000 others and subscribe to our free RSS feed, follow us on Facebook (also free!), follow us on Twitter, or just visit our homepage (yep, free).

17.05.2013

New “Artificial Leaf” Concept Could Blow Up Fuel Cell Market

The idea of an “artificial leaf” sounds simple enough: Take a small, cheap, light-collecting device the size of a typical leaf, dunk it in a quart of water, and use solar energy to generate enough hydrogen gas for powering a small fuel cell. Scaled up, these solar-derived fuel cells would provide an energy storage solution that puts solar power on the same consistent, reliable footing as any fossil fuel. Various researchers have gotten most of … Read MoreNew “Artificial Leaf” Concept Could Blow Up Fuel Cell Market was originally published on: CleanTechnica. To read more from CleanTechnica, join over 30,000 others and subscribe to our free RSS feed, follow us on Facebook (also free!), follow us on Twitter, or just visit our homepage (yep, free).

17.05.2013

Did Energy Efficiency Drive 75% Of US CO2 Cuts In 2012?

This article originally appeared on RenewEconomy. By Sophie Vorrath Ever since the US saw its CO2 emissions hit a 20-year low last year, the widely held belief has been that natural gas played the dominant role by pushing coal out of the market. But, as Stephen Lacey reports over on GreentechEfficiency, researchers at CO2 Scoreboard have come to rather a different conclusion. They found that, on a nationwide level, more than 50 million megawatt-hours of coal simply dropped … Read MoreDid Energy Efficiency Drive 75% Of US CO2 Cuts In 2012? was originally published on: CleanTechnica. To read more from CleanTechnica, join over 30,000 others and subscribe to our free RSS feed, follow us on Facebook (also free!), follow us on Twitter, or just visit our homepage (yep, free).

17.05.2013

Tesla Plans To Pay Off DOE Loan Early, Issues 2,703,027 Shares Of Common Stock + $450 Million Of Convertible Senior Notes

We previously reported on Tesla’s aim to pay back its Department of Energy (DOE) loan 5 years early. The company has made some strong steps in that direction this week with a couple of major fundraising announcements. As part of that, Elon Musk himself is investing a good chunk more money ($100 million) into the company. Naturally, these positive announcements (on top of all the others Tesla has been making in recent weeks) have helped … Read MoreTesla Plans To Pay Off DOE Loan Early, Issues 2,703,027 Shares Of Common Stock + $450 Million Of Convertible Senior Notes was originally published on: CleanTechnica. To read more from CleanTechnica, join over 30,000 others and subscribe to our free RSS feed, follow us on Facebook (also free!), follow us on Twitter, or just visit our homepage (yep, free).

17.05.2013

New DOE Secretary Ernest Moniz Gets Support From Cleantech & General Green Organizations

With Dr. Ernest Moniz officially confirmed at the next US Secretary of Energy, leading cleantech and green groups are getting their statements out regarding what they think of this. Here are a few I thought were worth publishing, followed by some of my own thoughts: EDF President Fred Krupp: Today’s unanimous Senate vote to confirm Ernest Moniz as our next Secretary of Energy is great news for America. It shows that when Congress puts politics aside, … Read MoreNew DOE Secretary Ernest Moniz Gets Support From Cleantech & General Green Organizations was originally published on: CleanTechnica. To read more from CleanTechnica, join over 30,000 others and subscribe to our free RSS feed, follow us on Facebook (also free!), follow us on Twitter, or just visit our homepage (yep, free).

17.05.2013

Stacking 2-D materials produces surprising results

(Phys.org) —Graphene has dazzled scientists, ever since its discovery more than a decade ago, with its unequalled electronic properties, its strength and its light weight. But one long-sought goal has proved elusive: how to engineer into graphene a property called a band gap, which would be necessary to use the material to make transistors and other electronic devices.

16.05.2013

Graphene-boron mix shows promise for lithium-ion batteries

Frustration led to revelation when Rice University scientists determined how graphene might be made useful for high-capacity batteries.

16.05.2013

Researchers report first fully integrated artificial photosynthesis nanosystem

(Phys.org) —In the wake of the sobering news that atmospheric carbon dioxide is now at its highest level in at least three million years, an important advance in the race to develop carbon-neutral renewable energy sources has been achieved. Scientists with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) have reported the first fully integrated nanosystem for artificial photosynthesis. While "artificial leaf" is the popular term for such a system, the key to this success was an "artificial forest."

16.05.2013

DNA-guided assembly yields novel ribbon-like nanostructures

(Phys.org) —Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have discovered that DNA "linker" strands coax nano-sized rods to line up in way unlike any other spontaneous arrangement of rod-shaped objects. The arrangement-with the rods forming "rungs" on ladder-like ribbons linked by multiple DNA strands-results from the collective interactions of the flexible DNA tethers and may be unique to the nanoscale. The research, described in a paper published online in ACS Nano, a journal of the American Chemical Society, could result in the fabrication of new nanostructured materials with desired properties.

16.05.2013

Utility-Scale PV Power Plants Are Now Cost-Effective In Oregon

By Chris Robertson Large-scale solar power plants are now economic in Oregon. This is one of the surprising findings of the Oregon Solar Energy Industries Association’s recently published “Vision to Integrate Solar in Oregon” (VISOR).  Produced by Chris Robertson & Associates, LLC, with support from the Bonneville Environmental Foundation, the VISOR study can be accessed at chrisrobertsonassociates.com The cost of producing solar electricity from large-scale power plants is less than the regulated avoided costs of the two … Read MoreUtility-Scale PV Power Plants Are Now Cost-Effective In Oregon was originally published on: CleanTechnica. To read more from CleanTechnica, join over 30,000 others and subscribe to our free RSS feed, follow us on Facebook (also free!), follow us on Twitter, or just visit our homepage (yep, free).

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