CleanTechnica

Wave Energy Looking for Breakthrough — Using Aerospace Design

Zachary Shahan — Sat, 21 Nov 2009 18:27:49 +0000

The oceans seem like a great potential source for clean energy. The force of the waves, the constancy, the size of the oceans — it all seems like something that could produce energy for humans without much harm. (I still have some concerns, though it seems like one of the best options these days). Some of the major problems with utilizing the force of the oceans, however, have been how to survive storms, the need to be anchored to the see floor, and efficiency.

Researchers from the US Air Force Academy have a new, outside-the-box idea for dealing with these problems — use an aerospace approach.

This is yet to be developed to full-scale and tested in that form, but early computer and model-scale tests are showing higher efficiencies than wind turbines, according to the National Science Foundation (NSF).

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Scientists Developing Swarms of Miniature Drifting Robots to Patrol the Ocean

Tina Casey — Sat, 21 Nov 2009 17:14:06 +0000

The National Science Foundation has just awarded researchers at UC San Diego a $1million grant to develop small robotic devices that will drift with the ocean currents to study the mechanisms that support plankton and other tiny marine creatures. Swarms of the autonomous underwater explorers (AUE’s) could provide a window into the underlying factors that drive broader ocean processes, by more precisely focusing on localized data on currents, temperature, salinity, pressure, and other properties.

The robots could also some day patrol and monitor protected marine areas, provide early warnings of potential hazards such as algae blooms and oil spills, and even scout out plane crashes and other ocean-going emergencies. Depending on how the devices are powered, the robot swarms could also provide a more sustainable means of accomplishing oceanic research compared to the use of ships and other fossil fuel-powered equipment.

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Storing Renewable Energy in Boxes of Air

Susan Kraemer — Fri, 20 Nov 2009 19:33:55 +0000

Storage is needed to harvest the full yield available from intermittent sources of energy like wind and solar. One of the options is compressed-air storage; till now only possible in underground caverns. But SustainX Energy Solutions; a Dartmouth College start-up that got $4 million in VC funding from Polaris Venture Partners and Rockport Capital this year is working on compressing and storing air in cheap off-the-shelf shipping containers.

Over the next two years SustainX will try to develop a way to cram 4 megawatt-hours worth of stored energy into each 40-foot long container and to reduce the energy that it currently takes to compress and release air by about 70%.

The goal? A renewable energy storage system with the portability and scalability of a battery and the economy and capacity of a cave. Make that a portable cave.

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Best Counterargument to Price on Carbon Hurting Jobs?

Scott Cooney — Fri, 20 Nov 2009 17:25:19 +0000

At yesterday’s Sustainable Industries Economic Forum, keynote presenter Paul Hawken was asked, “What is the best counterargument to the argument that carbon caps will raise energy costs and hurt our economy?” In typical Hawken style, his earlier speech was well done, inspiring and insightful. In typical Hawken style, his off-the-cuff answers to audience questions was where he really shone. And this answer was perhaps his shining moment of the day.

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Paul Hawken on Being a ‘Doomer’

Scott Cooney — Fri, 20 Nov 2009 17:09:11 +0000

During yesterday’s Sustainable Industries Economic Forum, keynote speaker Paul Hawken suggested that it will take a somewhat monumental effort to get back to 350 ppm in our atmosphere (we’re at 387 right now). His list was daunting. We’d need one new olympic sized pool of bioalgae fuel production every second for 25 years, for example. He said that while being a ‘doomer’ has a negative connotation, the facts are the facts, and that there is a role for this kind of startling statistic. An audience member asked the question that was on all our minds: “It seems untenable. Do you have hope that this can actually happen?”

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Quick-Charge Batteries Get a Boost from Defective Carbon Nanotubes

Tina Casey — Fri, 20 Nov 2009 13:08:32 +0000

Researchers at the University of San Diego have discovered that carbon nanotubes don’t have to be perfect to do a better job. The team of UCSD Professor Prabhakar Bandaru and grad student Mark Hoefer found that defective carbon nanotubes actually store energy more effectively than their unflawed counterparts.

The effect, which was originally studied at UCSD by grad student Jeff Nichols, rests in the creation of just the right amount of defects - enough to create additional charge sites on the nanotube, but not enough to break down its electrical conductivity. Though it’s a long way from commercialization, the breakthrough brings us one step closer to the Holy Grail of the electric car, and to the entire battery operated sustainable infrastructure of the future: a genuine quick-charging, long lasting battery.

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Asia Light Years Ahead of the US in Clean Tech Investment — Financial and Economic Consequences

Zachary Shahan — Fri, 20 Nov 2009 11:50:06 +0000

Asia is investing hundreds of billions of dollars more than the US in clean technology, according to a new report by two research institutions. In the future, the US may be importing trillions of dollars of needed clean technology (and losing countless jobs to Asia) as a result.

In total, the report showed that China, Japan, and South Korea will invest about $509 billion in clean tech over the next 5 years, whereas the US (with our greenest President in decades, maybe ever) is only expected to invest $172 billion (about 3 times less) — this is assuming the climate and energy legislation in Congress passes.

If the US were to invest the same percentage of its Gross Domestic Product (GDP) as South Korea, it would invest almost $140 billion per year ($700 billion over this five year period)! Compared to China, the anticipated per-GDP investment ratio is 1:4 (US to China).

In 2008, Japan almost matched US R&D spending on energy and achieved almost the same number of international clean energy patents despite having dramatically lower GDP.

The financial investment is not the only thing giving these countries a major advantage in this field, though.

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Altus Air Force Base is Flying High on New Green Award

Tina Casey — Thu, 19 Nov 2009 23:47:24 +0000

Off they go into the wild green yonder: the 97th Air Mobility Wing at Altus Air Force Base in Oklahoma has just earned the top “Green” rating from the Air Force’s Environmental, Safety and Occupational Health compliance program.

The 97th spent months prepping for its evaluation and earned a “you knocked our socks off” comment from the ESOHCAMP program manager, but that’s not the only sustainability feather in Altus’s cap. The base is also home to one of the Air Force’s premier green remediation sites.

New Report Forecasts Solar Boom in NC — “Growing Solar in North Carolina”

Zachary Shahan — Thu, 19 Nov 2009 21:26:23 +0000

A new report by Environment North Carolina’s Research and Policy Center, “Growing Solar in North Carolina,” found that North Carolina (home of my UNC Tar Heels) could be a solar power giant soon.

The new report found that North Carolina has a lot of solar energy potential due to its “vast” solar energy intensity (which is nearly as much as Florida’s) combined with other economic, policy and technological factors.

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Top ARPA-E Funding Goes to Renewable Storage in Liquid “Battery”

Susan Kraemer — Thu, 19 Nov 2009 18:30:08 +0000

DOE’s new renewable energy Venture Capital unit ARPA-E has just funded an entirely new kind of liquid battery innovation from MIT professor Donald Sadoway, that works like an aluminum plant running in reverse; producing power instead of consuming it.

Under the ARPA-E program at the DOE, the Obama administration has provided record-setting funding for advanced breakthroughs in renewable energy technology - that could propel America to the front of the post-oil age economy.

Just 37 technologies were selected for their potential transformational impact in the world, out of 3,600 applicants. Of the 37 winners; Sadaway’s has received the most funding; with $7 million.

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