Brazil on Edge
|Arnaud Koehl||October 5th 2012|
On July 27, a violent truck drivers’ strike occurred in the Brazilian state of Rio Grande do Sul, which eventually encompassed Brazil’s entire trucking industry. Among other issues, they were protesting the National Agency of Terrestrial Transports’ (ANTT) new highway safety regulations. On the same day, the agency issued measures concerning a significant 2.87 percent price increase in highway tolls. Both controversial decisions reflect not only a strained road infrastructure, but also an urgent need for profound structural improvement in the country’s highway system. The lack of coherence in the region’s trucking industry derives from deep-rooted inadequacies and a lack of government investment. Since 1980, Brazil has witnessed a steady decrease in its public transportation investment, now at only 0.7% of its 2010 GDP. The dearth of appropriate planning and a complex regulatory environment have only amplified this problem.
The operational failures of the Brazilian transportation system have had a detrimental effect on the country’s broader economy. Combined with other concerns including excessive taxes and bureaucracy, the obviously inadequate infrastructure is largely responsible for the colossal lack of competitiveness known as the “custo Brasil” (in English, the “Brazil cost”) that afflicts the country. Brazil’s freight haulage productivity especially suffers from the excessively complex logistics involved in disbursement. In 2007, transport costs represented a gargantuan 13 percent of Brazilian GDP, compared to the United States’ relatively efficient 7 percent. Thus, it costs an average of $1,240 USD to export a container of freight while the same task requires only $990 USD in the United States. This particularly damages the pre-eminent agrifood sector’s performance, therefore multiplying both external and internal prices. Read more ..
|Michael Levi||October 4th 2012|
Council on Foreign Relations
U.S. carbon dioxide emissions for January-May are down six percent from 2011 to 2012. Headlines have highlighted the fact that emissions from January-March hit a twenty year low. What explains the shift?
That question has been the subject of intense debate. John Hanger argues that 77 percent of that decline can be attributed to the shift from coal to gas. The folks over at CO2Scorecard, looking at January-March data, put that number at a more modest 21 percent. These are drastically different figures. What number should we believe?
Part of the discrepancy comes from looking at different time periods. January-March emissions were affected more by the warm winter than April-May ones were. That makes sense because January-March is part of the winter. April-May emissions were affected more by rock bottom natural gas prices than January-March ones were. That makes sense because it was April-May when rock bottom (i.e. sub-two-dollars wellhead) natural gas prices prevailed. Read more ..
The Automotive Edge
|Alison Hewitt||October 3rd 2012|
Take the time to enjoy a deep breath next weekend when the 405 freeway closes for Carmageddon II. If it's anything like last year, the air quality is about to get amazing.
In study findings announced Sept. 28, UCLA researchers report that they measured air pollutants during last year's Carmageddon (July 15) and found that when 10 miles of the 405 closed, air quality near the shuttered portion improved within minutes, reaching levels 83 percent better than on comparable weekends.
Because traffic dipped all over Southern California that weekend, air quality also improved 75 percent in parts of West Los Angeles and Santa Monica and an average of 25 percent regionally — from Ventura to Yucaipa, and Long Beach to Santa Clarita.
The study was led by two professors at UCLA's Institute of the Environment and Sustainability: Yifang Zhu, who is also an associate professor of environmental health sciences at the UCLA Fielding School of Public Health, and Suzanne Paulson, who is also a professor of atmospheric and oceanic sciences. Read more ..
|Michael Bernstein||October 3rd 2012|
American Chemical Society
Scientists are describing what may be a "complete solution" to cleaning up oil spills — a superabsorbent material that sops up 40 times its own weight in oil and then can be shipped to an oil refinery and processed to recover the oil. Their article on the material appears in ACS' journal Energy & Fuels.
T. C. Mike Chung and Xuepei Yuan point out that current methods for coping with oil spills like the 2010 Deepwater Horizon disaster are low-tech, decades-old and have many disadvantages. Corncobs, straw and other absorbents, for instance, can hold only about 5 times their own weight and pick up water, as well as oil. Those materials then become industrial waste that must be disposed of in special landfills or burned.
Their solution is a polymer material that transforms an oil spill into a soft, solid oil-containing gel. One pound of the material can recover about 5 gallons of crude oil. The gel is strong enough to be collected and transported. Then, it can be converted to a liquid and refined like regular crude oil. That oil would be worth $15 when crude oil sells for $100 a barrel. Read more ..
The Race for Geothermal
|Aisha Espey||October 3rd 2012|
Historically, most of Central America’s energy sector began as state-controlled entities that provided a diverse portfolio of domestically sourced energy. However, during the 1980s and 1990s the region began to adopt neoliberal reforms, leading to the privatization of the energy sector and a series of IMF-directed economic transitions, both Structural Adjustment Programs and “shock therapy.” These neoliberal reforms regrettably fostered a flawed privatization process that resulted in a nocuous regional oil-dependency and ineffective energy grid.
The inefficiency of Central America’s energy sector has had far-reaching consequences beyond dependency, including rolling blackouts, rationed electricity, and price spikes at the pump—all of which have social, economic, and political ramifications. During the global energy crisis of 2005, Central American leaders jointly affirmed a state of “maximum alert” in regards to their energy supply. This signified a need for change, and the governments of Guatemala, El Salvador, and Nicaragua have since vowed to increase the amount of renewable energy in their nations’ energy portfolios. Read more ..
The Race for Nuclear
|Mareike Schodder||October 2nd 2012|
Potsdam Institute for Climate Impact Research
Incremental costs due to policy options restricting the use of nuclear power do not significantly increase the cost of even stringent greenhouse-gas emissions reductions.
"Questions have been raised if restricting nuclear energy – an option considered by some countries after the accident in Fukushima, Japan – combined with climate policies might get extremely expensive. Our study is a first assessment of the consequences of a broad range of combinations of climate and nuclear policies," lead author Nico Bauer says. Restrictions on nuclear power could be political decisions, but also regulations imposed by safety authorities. Power generation capacities would have to be replaced, but fossil fuels would become costly due to a price on CO2 emissions, this in sum is the main concern.
"However, in case of restricted use of nuclear power, the flexibility of allocating a long-term carbon budget over time enables higher near-term emissions due to increased power generation of natural gas," Bauer says. Along with demand reductions and efficiency improvements, these provisions could help fill the gap on electricity. The price of natural gas is projected to decrease due to demand reductions, according to the study. Decommissioning existing plants will also avoid refurbishment costs for expanding lifetimes of old nuclear power plants. Read more ..
The Race for Solar
|Karin Kloosterman||September 30th 2012|
It’s dark at an upscale Cairo café. It’s not closed; service continues despite the only light coming from windows along two walls. The cause was an electricity outage. While it only lasted around 15 minutes, it was one of thousands of power cuts this past summer in Egypt as overuse left many without power for large portions of the day.
Across the river from Cairo’s upscale Zamalek neighborhood lies Imbaba, a lower-class neighborhood, and one of the harder hit areas of the Egyptian capital. “We had some days where we didn’t have power for six hours, sometimes longer,” Hassan Ghozlan, a local resident, stated. And they still continue, he added. “Still, some days it goes out for a few hours, even during the evening when it is cooler,” he added. The government has said that too many air-conditioners are to blame for the cuts. Either way, there is hope for the country’s citizens, as a new project aims to tackle electricity by using alternative power methods. Read more ..
The Race for BioFuel
|Sam Orez||September 29th 2012|
Perhaps inspired by Arizona’s blazing summers, Arizona State University scientists have developed a new method that relies on heat to improve the yield and lower the costs of high-energy biofuels production, making renewable energy production more of an everyday reality.
ASU has been at the forefront of algal research for renewable energy production. Since 2007, with support from federal, state and industry funding, ASU has spearheaded several projects that utilize photosynthetic microbes, called cyanobacteria, as a potential new source of renewable, carbon-neutral fuels. Efforts have focused on developing cyanobacteria as a feedstock for biodiesel production, as well as benchtop and large-scale photobioreactors to optimize growth and production. ASU Biodesign Institute researcher Roy Curtiss, a microbiologist who uses genetic engineering of bacteria to develop new vaccines, has adapted a similar approach to make better biofuel-producing cyanobacteria. Read more ..
The Race for Solar
|Steve Waller||September 28th 2012|
Despite attending Egypt’s Bani-Suef University as a student of commerce, 24 year-old Mohamed Gooda’s passion has always been for science. Having pursued his interest in physics in his spare time, he’s come up with a theoretical method of improving upon the efficiency of the photovoltaic solar cells currently in use the world over. He believes that, if widely implemented, his theory for a new method of converting solar radiation into electricity, using lasers, could afford Egypt a high level of energy independence.
Given that Egypt receives over 3,000 hours of sunlight a year in some regions, it’s not unreasonable to think that a revolutionary new form of solar cell could indeed lead to a radical change in the profile of Egypt’s energy consumption. But just how are these new cells supposed to work?
Whereas a standard photovoltaic solar cells’ functionality depends on the photoelectric effect (also known as the Hertz effect), whereby chemical elements that have ‘easy going’ electrons at their outer electron shell convert luminous energy into electricity, Mohamed’s proposes a different model of generating energy from sunlight. He theorises that it’s possible to generate solar power using a similar method to the stimulated emission of electrons that powers lasers. Read more ..
The Race for Natural Gas
|Laurie Balbo||September 27th 2012|
The Abu Dhabi Food Control Authority (ADFCA) has converted 20 vehicles in its fleet of 500 to run on compressed natural gas (CNG). It’s part of their commitment to reduce harmful emissions and their press release says they’ll convert about 20 percent of the total fleet to CNG by the end of 2015.
The switch to alternative fuel is happening in partnership with Al Wathba Central Services, which is providing free training to ADFCA staff who’ll be driving these green machines. A CNG vehicle’s carbon footprint is about 75 percent of that of comparable gasoline fueled wheels.
CNG is pitched as a safer fuel (it’s more difficult to ignite than gasoline); as a fuel that lowers fleet operating costs (less wear on engines than gasoline); and of course, there’s the gentler atmospheric impact. Conversion to CNG brings a 10 – 15 percent reduction in greenhouse gas emissions over a vehicle’s lifecycle, compared to a gasoline-fueled equivalent. ADFCA cited recent research indicating that a CNG vehicle engine will emit 80 percent less nitrogen oxides, 80 percent less non-methane organic gases, and up to 70 percent less carbon monoxide. Read more ..
The Race for Wave Power
|Nicky Blackburn||September 27th 2012|
An Israeli researcher has developed a new method of predicting the shape of oncoming waves in a breakthrough that could double the amount of energy previously collected from wave power. Prof. George Weiss, of Tel Aviv University’s Center for Renewable Energy has created a computer algorithm which, he claims, can substantially improve the functioning of wave energy converters (WEC) used in producing electrical energy from ocean waves.
Like wind and solar power, wave power has enormous potential and is already in use on the East coast of the US, and on the Atlantic coast in Spain. The unpredictability of the waves, however, which differ in size and force, makes harvesting energy from the sea unstable. WECs consist of two parts, a fixed part often attached to the ocean bed, and an upper part which moves up and down with the motion of the sea. Energy is created by the resistance force between the parts. To function properly WEC’s need to adjust themselves to each oncoming wave, but currently this is something they cannot do. Read more ..
|Steve Herman||September 26th 2012|
There has been an ongoing debate in Japan on the best way to obtain a safe and affordable energy supply for the island nation. The nuclear option suffered a setback in March, 2011, when a massive earthquake and devastating tsunami caused a meltdown in reactors at Japan's main Fukushima-1 nuclear power plant.
The Japanese government had proposed, but then quickly stepped back from, phasing out all existing nuclear plants by 2040 (with a loophole that under-construction reactors would be able to come online and run for several more decades). The reversal occurred, in great part, because of pressure from powerful business organizations, including major corporations with vested interests in the nuclear industry, that argued expensive imported fossil fuels for conventional plants will hurt Japan's productivity. The lobbying has also forestalled scrapping a controversial, 25-year-old fast breeder reactor on the country's western coast in Fukui prefecture. Read more ..
The Race for Bio-Fuel
|Ann Perry||September 25th 2012|
Tried-and-true techniques could help optimize oilseed yield for biodiesel production, according to studies conducted by U.S. Department of Agriculture (USDA) scientists.
For more than 30 years, near infrared (NIR) reflectance spectroscopy has been used as a rapid and nondestructive method for measuring protein, moisture, and oil levels in whole grains. Now Agricultural Research Service (ARS) research leader Dan Long is studying how to use remote sensing tools to quickly assess seed oil quality and quantity before and after harvest. ARS is USDA's chief intramural scientific research agency, and this research supports the USDA priority of developing new sources of bioenergy. Read more ..
The Race for Smart Grid
|Julien Happich||September 25th 2012|
Northwestern University scientists claim they have developed a thermoelectric material with a figure of merit of 2.2, making it a world's best at converting waste heat to electricity.
The inefficiency of current thermoelectric materials has limited their commercial use. Now, with a very environmentally stable material that is expected to convert 15 to 20 percent of waste heat to useful electricity, thermoelectrics could see more widespread adoption by industry. Possible areas of application include the automobile industry (much of gasoline's potential energy goes out a vehicle's tailpipe), heavy manufacturing industries (such as glass and brick making, refineries, coal- and gas-fired power plants) and places were large combustion engines operate continuously (such as in large ships and tankers). Waste heat temperatures in these areas can range from 400 to 600 degrees Celsius (750 to 1,100 degrees Fahrenheit), the sweet spot for thermoelectrics use. Read more ..
|Zack Colman||September 25th 2012|
Backers of a Senate energy efficiency bill passed early Saturday said that removing authorizations and new standards were necessary to gain traction in the Republican-controlled House. Sens. Jeanne Shaheen (D-N.H.) and Rob Portman (R-Ohio) got their energy efficiency legislation (S. 1000) through as an amendment to a previously passed House bill, but had to shed much of its weight in the process.
“Our amendment, while not everything we wanted, takes some reasonable and commonsense steps to ensure the federal government is coordinating with industrial manufacturers in developing and deploying industrial efficiency technologies, and places additional energy efficiency requirements on the federal government that will ultimately save money for the U.S. taxpayer,” Portman said in a statement Monday. The amendment was tacked onto H.R. 4850, which would update energy efficiency standards for products ranging from walk-in freezers to covered water heaters. The Senate passed the bill by unanimous consent, which could set it up for either a House floor vote or a conference committee. Read more ..
|Ben Geman||September 24th 2012|
Bloomberg looks at a forthcoming Treasury Department report that’s expected to present evidence that Iran's state-owned oil company is an “an agent or affiliate” of the country's Islamic Revolutionary Guard Corps. The military unit has been sanctioned for weapons proliferation, terrorism and human-rights abuses, but Treasury “didn’t find sufficient proof to sanction the National Iranian Tanker Co., or NITC, the main carrier for Iranian crude, for ties to the Revolutionary Guard,” Bloomberg reports. The Associated Press reports that “gloomy” economic news dragged down oil prices Monday. AP also reports that the Environmental Protection Agency has named a new top official for its Region 6, which includes Texas, Louisiana and several other states.
Bloomberg reports on efforts by Alaskan officials to export natural gas to Asian markets. Read more ..
The Race for Nuclear
|Dan Levin||September 22nd 2012|
The tsunami in Japan in March 2011 unleashed a series of negligence related with the resulting nuclear disaster. A scientific study headed by Spanish researchers has for the first time identified those atomic power plants that are more prone to suffering the effects of a tsunami. In total, 23 plants are in dangerous areas, including Fukushima I, with 74 reactors located in the east and southeast of Asia.
Tsunamis are synonymous with the destruction of cities and homes and since the Japanese coast was devastated in March 2011 we now know that they cause nuclear disaster, endanger the safety of the population and pollute the environment. As such phenomena are still difficult to predict, a team of scientists have assessed "potentially dangerous" areas that are home to completed nuclear plants or those under construction.
In the study published in the 'Natural Hazards' journal, the researchers drew a map of the world's geographic zones that are more at risk of large tsunamis. Based on this data, 23 nuclear power plants with 74 reactors have been identified in high risk areas. One of them includes Fukushima I. Out of them, 13 plants with 29 reactors are active; another four, that now have 20 reactors, are being expanded to house nine more; and there are seven new plants under construction with 16 reactors. Read more ..
The Race for Hydrogen
|Paul Buckley||September 21st 2012|
ROHM has collaborated with Kyoto-based Aquafairy Corp., and Kyoto University to develop compact, lightweight, high-power hydrogen fuel cells designed to power smartphones and other portable devices.
The fuel cells claim to overcome the drawbacks of dry cells, lithium-ion cells, and direct methanol fuel cells, by reducing weight and increasing output power while providing a higher level of safety, making it possible to provide power in places where AC power is not available or cannot be used. Fuel cells can be made smaller, lighter, and more efficient than conventional storage and rechargeable cells, to drive expansion into new markets and applications. Methanol fuel cells have several disadvantages that prevent widespread acceptance. Unlike hydrogen fuel cells, it is difficult to increase power output with methanl fuel cells. Hydrogen fuel cells require the use of cylinders, making them harder to handle and hinder efforts towards greater miniaturization. Read more ..
South Africa on Edge
|Peter Cox||September 20th 2012|
South Africa’s historically low electricity prices have increased dramatically over the last four years, and are expected to continue to do so over the next five. For those in the restaurant business, it means lower profit margins, rising prices and layoffs. The lifeblood of a restaurant is in the kitchen. Inside that backroom, stoves are constantly burning, ovens baking and dishwashers cleaning. In terms of electricity, the meter is always spinning upward and costs are growing quickly.
The price of electricity in Johannesburg has risen by an average of 27 percent each of the last four years. This year, Eskom - South Africa’s electric utility - raised prices by 16 percent. Similar increases are expected annually over the next five years. "We have made it clear that we will be applying for the above inflation increases because our maintenance costs are going up by more than inflation. But also we have to be in position to finance the very large new build program that we are in the middle of at the moment," said Hilary Joffe, the spokeswoman for Eskom. Eskom is building new power stations to try to meet rising demand as more and more poor South Africans get on the grid in the post-apartheid era. Read more ..
|Ben Geman & Zack Colman||September 19th 2012|
Fresh layoffs in the coal and wind industries are fueling congressional battles over energy policy ahead of the elections. Republicans are seizing on job losses at coal mining giant Alpha Natural Resources as they seek support for legislation to kill, soften or delay various federal rules that affect the coal industry.
The House will vote later this week on the bill, which would upend federal greenhouse gas regulations and other White House policies that Republicans allege are harming the coal industry. The House Rules Committee is slated to meet Wednesday afternoon to vet amendments that could receive floor votes when the bill comes up. A final floor vote on the bill is expected Friday. While Republicans are focusing on coal, Sen. Mark Udall (D-Colo.) says layoffs announced by wind energy equipment maker Siemens shows why lawmakers must extend tax credits for wind projects. Read more ..
The Race for Fusion
|Neal Singer||September 17th 2012|
Magnetically imploded tubes called liners, intended to help produce controlled nuclear fusion at scientific "break-even" energies or better within the next few years, have functioned successfully in preliminary tests. To exceed scientific break-even is the most hotly sought-after goal of fusion research, in which the energy released by a fusion reaction is greater than the energy put into it — an achievement that would have extraordinary energy and defense implications. That the liners survived their electromagnetic drubbing is a key step in stimulating further Sandia testing of a concept called MagLIF (Magnetized Liner Inertial Fusion), which will use magnetic fields and laser pre-heating in the quest for energetic fusion. In the dry-run experiments just completed, cylindrical beryllium liners remained reasonably intact as they were imploded by huge magnetic field of Sandia's Z machine, the world's most powerful pulsed-power accelerator. Had they overly distorted, they would have proved themselves incapable of shoveling together nuclear fuel — deuterium and possibly tritium — to the point of fusing them. Sandia researchers expect to add deuterium fuel in experiments scheduled for 2013.
"The experimental results — the degree to which the imploding liner maintained its cylindrical integrity throughout its implosion — were consistent with results from earlier Sandia computer simulations," said lead researcher Ryan McBride."These predicted MagLIF will exceed scientific break-even." Read more ..
The Race for Biogas
|Tafline Laylin||September 16th 2012|
Once it becomes fully operational in the next few months, the recently inaugurated Be’er Tuviya bio-gas plant will scoop up the waste of 14,000 cows and in total roughly 15 percent of all chicken and dairy farms in the country. All that manure will then be used to generate electricity for thousands of homes.
Owned by Eco Energy, the $2.6 million Be’er Tuviya plant is not the first in Israel that will convert the energy of farm animals to biogas, but it is the largest. Inaugurated last Monday, with local and national officials there to celebrate the event, the 4MW facility is expected to provide enough energy to power up to 6,000 homes – giving both the strained national grid. The Be’er Tuviya Regional Council claims that biogas facilities also help to spare the environment by diverting livestock and poultry effluent from waterways and plugging odors, which attract flies. Read more ..
|Heather Murdock||September 14th 2012|
A year after the U.N. Environment Program reported Ogoniland, Nigeria, should be the site of the biggest oil spill clean-up in history, activists say it is still not clear who will pay for it or when it will happen. While the oil company and the government argue about money, people say they are getting sick and dying.
Oil was first discovered in Nigeria in the 1950s in Ogoniland, a part of the Niger Delta. In the 1990s, after nearly 40 years of oil spills destroying people’s livelihoods and health, the people forced oil-giant Shell out of Ogoniland. But today, oil still flows into the land from pipes that criss-cross the region.
At a community center in Oleh, a town in neighboring Delta State, Lizzy Ologe, a primary school teacher, says oil pollution is still literally killing people. "Our water is polluted. Our health is in hazard form. In fact, we have high mortality rates, especially our little children. We no longer live to old age," said Ologe. Read more ..
|Ariel Cohen, David W. Kreutzer, James Phillips and Michaela Bendikova||September 13th 2012|
The Heritage Foundation
Iranian threats to block oil shipping in the Strait of Hormuz, if acted upon, could disrupt the global energy supply and cause oil prices to spike. However, as this report suggests, this scenario is relatively short term. It leaves the oil-producing infrastructure intact, and prices would stabilize if military action, led by the United States, and a coordinated international response successfully restore security to the sea-lanes.
However, policymakers need to consider a more dangerous scenario: the collapse of Saudi Arabia’s oil production caused by a massive social upheaval like those that have toppled regimes in Tunisia, Egypt, and Libya.
In 2006, 2008, and 2010, we conducted simulations to assess the strategic and economic impact of a major disruption of energy supply caused by Iranian military action in the Strait of Hormuz or by coordinated terrorist attacks on key nodes in the global energy infrastructure. Read more ..
The Race for Solar
|Karin Kloosterman||September 12th 2012|
New Israeli energy company gets power from sides A and B of solar panels. Another ‘b,’ the element boron, maximizes efficiency.
The B-side songs on old vinyl records were never expected to be quite as popular as the chart-toppers on side A. But a new Israeli solar energy company hopes to score a hit with the untapped potential from the B-side of a bifacial solar panel.
“B” is also for boron, the chemical element that makes bSolar panels 20 percent more efficient than standard one-sided solar panels on the market. Founded in 2007 and with a $10 million investment, $3 million of which comes from Genesis Partners, bSolar bought a flailing 30-megawatt solar panel production plant in Germany where it is now manufacturing its bifacial solar cells.
Though this is not a new idea, bSolar has a secret weapon to give it an edge: The company was co-founded by the original inventors of bifacial solar cells 35 years ago in Russia, says bSolar’s CEO Yossi Kofman. The idea was to create a two-faced energy source for satellites, but until recently the cost of production was prohibitive. Read more ..
The Race for Smart Grid
|Julien Happich||September 12th 2012|
According to a report from IMS Research, in 2011, an estimated 3.3 million 'smart' energy management devices – not including smart meters themselves - were shipped for the residential market. This year, the market is set to grow to more than six million units.
By 2016, annual shipments are projected to be more than 30 million units, as the smart metering infrastructure develops, relevant legislation comes into force, a range of retail channels develop and managed services become more widely offered. In the past three years, almost 60 million smart meters have been deployed – with almost 20 million including a ‘HAN gateway’ (home area network - typically ZigBee) to enable connectivity between the backhaul AMI (typically powerline or RF mesh) and in-home devices, such as in-home displays (IHDs).
Between 2012 and 2016, IMS Research forecasts that 300 million additional smart meters will be shipped, with a third of these including an integrated RF ‘HAN gateway’. Lisa Arrowsmith, principal analyst with IMS Research explains, “A key argument for the inclusion of a HAN gateway in smart meters – aside from enabling connection to an IHD – is to enable more sophisticated pricing tariffs, such as dynamic pricing, to smooth demand peaks and avoid firing up the most costly power plants. This offers the potential for ‘smart’ devices, such as thermostats, appliances, and electric vehicle chargers, which can be automated to run at times when electricity is cheapest.” Read more ..
The Race for Wind
|Ken Caldeira||September 10th 2012|
There is enough energy available in winds to meet all of the world's demand. Atmospheric turbines that convert steadier and faster high-altitude winds into energy could generate even more power than ground- and ocean-based units. New research from Carnegie's Ken Caldeira examines the limits of the amount of power that could be harvested from winds, as well as the effects high-altitude wind power could have on the climate as a whole. Their work is published in Nature Climate Change.
Led by Kate Marvel of Lawrence Livermore National Laboratory, who began this research at Carnegie, the team used models to quantify the amount of power that could be generated from both surface and atmospheric winds. Surface winds were defined as those that can be accessed by turbines supported by towers on land or rising out of the sea. High-altitude winds were defined as those that can be accessed by technology merging turbines and kites. The study looked only at the geophysical limitations of these techniques, not technical or economic factors. Read more ..
The Race for Solar
|Brian Nitz||September 9th 2012|
A tale of two wafers: Both begin as 99.9999999 percent pure silicon, one of the basic ingredients in desert sand. A furnace melts the silicon and controls the cooling and growing of a mono-crystalline cylindrical ingot which is then sliced into standard 100 to 300mm (4 to 7.5 inch) wafers. Infinitesimal quantities of doping materials are added to change the wafer into a semiconductor with the correct properties to become either a microchip or a photovoltaic solar cell. From this point these two types of wafers go their separate ways and give little indication of their common roots. But now a company named Sol Chip of Haifa Israel intends to combine these two silicon-based technologies to make solar-powered microchips.
In 1981 I connected a photovoltaic solar cell to a pocket calculator. I stood on a chair, held it up to the classroom’s florescent light and it worked! My friend Fernando laughed at me and I didn’t get a patent. Within two years nearly every pocket calculator was powered by photovoltaics and ambient light. Thirty-one years later microchips are in RFID tags for livestock, medical devices, utility monitoring equipment, cars, satellites, remote sensing buoys, price tags, toys, security alarms… It seems that microchips are everywhere! Read more ..
|Jim Morris||September 8th 2012|
Center for Public Integrity
Days before Citgo Petroleum Corp. faces its long-awaited sentencing for criminal Clean Air Act violations at its refinery in Corpus Christi, Texas, a Justice Department court filing alleges that a “wide range” of environmental and worker safety violations continue to plague the plant.
Citgo was convicted in June 2007 of two criminal counts stemming from 10 years of toxic emissions from two massive, uncovered storage tanks. Such convictions are rare: The Center for Public Integrity reported last year that Clean Air Act cases have been prosecuted at a far lower rate than Clean Water Act or solid waste cases.
In its filing this week, the Justice Department asks a federal judge to fine Citgo $2,090,000, the maximum allowed under the statute, and put the company on five years’ probation — also the maximum — for illegal emissions of benzene and other hazardous chemicals from the tanks between 1994 and 2004. The department says the refinery made almost $1.16 billion in profits during that period. Read more ..
The Race for Natural Gas
|Simon Henderson||September 7th 2012|
In October 2011, following the discovery of large quantities of natural gas off Israel's Mediterranean coast, Prime Minister Binyamin Netanyahu appointed an interministerial committee to formulate policies for development of the new resources.
Last week, the so-called Zemach Committee -- after chair Shaul Zemach, director-general of the Ministry of Energy and Water -- offered its recommendations. The panel's mandate was to offer suggestions on ensuring Israel's energy security, facilitating competition in its emerging domestic natural gas market, leveraging the environmental benefits of natural gas compared with other fuels, and maximizing the economic and political benefits.
Natural gas was first found in Israel's waters in 1999, when the Noa field was discovered off the coast of Ashdod. It was judged too small for commercial development, but in 2000, the Mari-B field was found nearby and has been supplying gas to Israeli power plants since 2004. In addition, Egypt began exporting gas to Israel in 2008, though it canceled that contract earlier this year after the pipeline was repeatedly sabotaged in Sinai. Read more ..
Energy vs Environment
|Huw Morgan||September 6th 2012|
Ship engine exhaust emissions make up more than a quarter of nitrogen oxide emissions generated in the Australian region according to a recently-published study by CSIRO and the Australian Maritime College in Launceston. Nitrogen oxide is a non-greenhouse gas, unlike similarly named nitrous oxide.
The remainder comes from road and air transport, energy generation, and industrial processes. Global studies indicate that shipping emissions of nitrogen oxide and sulphur contribute to the formation of photochemical smog and particles near land and in ports.
The authors, Dr Ian Galbally from CSIRO Marine and Atmospheric Research, and the Australian Maritime College’s Dr Laurie Goldsworthy estimate that approximately 30 per cent of anthropogenic nitrogen oxide emissions and 20 per cent of oxides of sulphur emissions generated in the Australian region may come from shipping. Read more ..
The Race for LEDs
|Frances White||September 5th 2012|
Pacific Northwest National Laboratory
Today's light-emitting diode light bulbs have a slight environmental edge over compact fluorescent lamps. And that gap is expected to grow significantly as technology and manufacturing methods improve in the next five years, according to a new report from the Department of Energy's Pacific Northwest National Laboratory and UK-based N14 Energy Limited.
"The light-emitting diode lamp is a rapidly evolving technology that, while already energy efficient, will become even more so in just a few short years," said Marc Ledbetter, who manages PNNL's solid-state lighting testing, analysis and deployment efforts. "Our comprehensive analysis indicates technological advancements in the near future will help people who use these lamps to keep shrinking their environmental footprints."
The report examines total environmental impact, including the energy and natural resources needed to manufacture, transport, operate and dispose of light bulbs. Fifteen different impacts were considered when evaluating environmental footprints, including the potential to increase global warming, use land formerly available to wildlife, generate waste and pollute water, soil and air. The report examines the complete life cycles of three kinds of light bulbs: light-emitting diodes, also called LEDs, compact fluorescents, or CFLs, and traditional incandescent light bulbs. Read more ..
The Race for Wind
|Tafline Laylin||September 4th 2012|
While solar advancements continue apace, wind energy technology has remained fairly stagnant over the years, making it in most cases less viable than fossil fuels or nuclear energy. It’s expensive, harmful to birds and bats, deeply inefficient and comes with a host of annoyances such as noise and vibration.
Responding to what they perceive as a massive gap in innovation, Saphon Energy from Tunisia has designed blade-less turbines that mimic the shape and function of sails. Because they don’t rotate, Saphonian turbines are harmless to wildlife, and completely eliminate aerodynamic and mechanical losses associated with conventional turbines. And they cost nearly half as much to produce. Tunis-based Saphon Energy has been working on their revolutionary new wind-energy generating prototype for the last two years. In their design inspired by sails, the firm has addressed many of the problems associated with standard spinning turbines, including efficiency, storage and high costs. Read more ..
|Ben Geman||September 3rd 2012|
House Republicans aren’t ready to lavish praise on the Obama administration despite approval of the launch of Shell’s long-planned Arctic oil exploration off Alaska’s northern coast. The Interior Department said Thursday that it’s allowing Shell to proceed with initial drilling in the Chukchi Sea, but isn’t letting the company drill into oil-bearing zones – yet.
“Interior’s announcement is a positive step, but it should not take six years to obtain a simple exploration permit and the Obama administration still has yet to issue the final green light for energy production in the Arctic,” said Rep. Cory Gardner (R-Colo.), a member of the House Energy and Commerce Committee. Republicans are touting legislation that would speed up another aspect of Arctic drilling projects: Environmental Protection Agency air pollution permits. Shell faced numerous setbacks before winning EPA permits for emissions from its drilling ship. Read more ..
The Race for Hydro
|Abigail Klein Leichman||September 2nd 2012|
The Jerusalem-based company that invented the Wind Tulip unveils a device to create hydroelectricity inside municipal water pipes. You don’t have to build dams to get hydroelectricity from water flowing through municipal pipes, says Dr. Daniel Farb, the Los Angeles immigrant who previously shook up the Israeli clean-tech power scene with his Leviathan Energy company’s award-winning Wind Tulip.
The ecologically conscious physician recently unveiled his latest brainchild, a turbine that turns excess pressure inside existing underground water pipes into energy for the electric grid. The Negev-based Leviathan team is still fine-tuning the invention at its new testing site rented from Kibbutz Re’im. The Negev kibbutz’s Isralaser industry is fabricating many of the parts for the turbine, dubbed “Benkatina” in tribute to Second Temple High Priest Ben Katin, who made a machine to lower and raise the ancient Temple’s laver to and from the water table. Read more ..
After the BP Spill
|Zack Colman||August 31st 2012|
Rep. Edward Markey (D-Mass.) wants two federal agencies to explain how they will address lingering oil contamination from the 2010 explosion of the BP Deepwater Horizon drilling rig. Markey told the heads of the Environmental Protection Agency (EPA) and the National Oceanic and Atmospheric Administration (NOAA) in letters sent Friday that Hurricane Isaac makes the Gulf of Mexico cleanup effort imperative.
He said as much as 1 million barrels worth of oil from the BP incident could be tied up in sediments and water that Isaac pushed ashore. “As the storm passed any oil carried by the winds and storm surge could be pushed deeper into the marshlands and potentially back onto land, re-igniting the potential for this oil to impact the plants and animals that thrive in the swamps and marshes,” Markey wrote EPA Administrator Lisa Jackson and NOAA Administrator Jane Lubchenco. Read more ..
The Race for Methane
|Diana Yates||August 31st 2012|
University of Illinois
Up to 4 percent of the methane on Earth comes from the ocean's oxygen-rich waters, but scientists have been unable to identify the source of this potent greenhouse gas. Now researchers report that they have found the culprit: a bit of "weird chemistry" practiced by the most abundant microbes on the planet. The researchers who made the discovery did not set out to explain ocean geochemistry. They were searching for new antibiotics. Their research, funded by the National Institutes of Health, explores an unusual class of potential antibiotic agents, called phosphonates, already in use in agriculture and medicine.
Many microbes produce phosphonates to thwart their competitors. Phosphonates mimic molecules the microbes use, but tend to be more resistant to enzymatic breakdown. The secret of their success is the durability of their carbon-phosphorus bond. Read more ..
The Race for Solar
|Karin Kloosterman||August 30th 2012|
Yafa Energy could be a bridge over which Arab-Israeli technology finds its way to industries in the Arab world seeking renewable energy solutions. Eureka! Yafa Energy has become the first Arab-Israeli company to win a prestigious European Union EUREKA (Exceptional, Unconventional Research Enabling Knowledge Acceleration) grant. Awarded through Israel’s Prime Minister’s office, Yafa was named as the best technological initiative from an Israeli minority community.
Created as an intergovernmental initiative in 1985, EUREKA aims to enhance industrial competitiveness by supporting businesses, research centers and universities that carry out pan-European projects to develop innovative products, processes and services.
Yafa Energy was founded by Salih Manasra, a mechanical engineer from the auto industry who decided to devote a new chapter of his life to doing something good for society and the planet. The two-year-old company was previously recognized by the World Bank for developing an essential solar thermal technology to heat steam for industrial processes that currently consume an enormous amount of polluting and unprocessed fuel. Read more ..
The Race for Solar
|Britt Faulstick||August 29th 2012|
Solar panels, like those commonly perched atop house roofs or in sun-drenched fields, quietly harvesting the sun’s radiant energy, are one of the standard-bearers of the green energy movement. But could they be better – more efficient, durable and affordable? That’s what engineers from Drexel University and The University of Pennsylvania are trying to find out, with the aid of a little nanotechnology and a lot of mathematical modeling.
A three-year grant from the National Science Foundation has set the team on a track to explore ways to make new photoelectric cells more efficient, durable and affordable. The group is examining “dye-sensitized” solar panels, which capture radiation via photosensitive dye and convert it into electricity. Their goal: streamline the electron transfer process inside the solar panels to make them more efficient at converting the radiation into electricity. Read more ..
|Ron Synovitz||August 29th 2012|
As the Arctic ice sheet melts away to a record low level this summer, oil companies are rushing in through newly opened shipping routes to stake claims and explore previously inaccessible areas for new drilling possibilities. A subsidiary of Russia's state-controlled energy giant Gazprom this month set up that country's first fixed platform in the Arctic. Located in the southwestern Barents Sea, it aims to drill year-round and ship crude back to the northern city of Murmansk in tanker ships.
That has brought out Greenpeace protest boats in the past week with activists who have chained themselves to the workers' transport ships and to the oil platform to call attention to the risks of drilling for oil in icy waters. Among them was Greenpeace Executive Director Kumi Naidoo, who told Reuters the protests call attention to the fact it is not possible to clean up an Arctic oil spill. Read more ..
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