In a landmark concession that will likely lead to the largest dam-removal effort in U.S. history, an electrical utility company has agreed to destroy four dams on the Klamath River to help migrating salmon and steelhead. The dams won’t be decommissioned until 2020 and there are still regulatory hoops to jump through, but fishermen and environmentalists are delighted by the development. “We’re about to make changes to the Klamath Basin that will be observable from space,” said Craig Tucker of the Karuk tribe, which traditionally fished for salmon [Los Angeles Times].
The Klamath River, which winds through Southern Oregon and eventually reaches California’s Pacific coast, was once home to one of the most vibrant salmon runs in the West. But since the first dam was erected in 1908, the region has been host to a nasty battle over water rights, with wildlife and commercial fishers ultimately bearing the worst scars as regulators were forced to repeatedly close salmon fishing along 700 miles of the Oregon-California coast [Greenwire]. The removal of the dams’ will open 300 miles of river to the salmon.
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Image: flickr / patrickmccully
Geothermal energy, a promising but increasing controversial type of alternative energy, is on the hot seat again, this time in a German town that experienced an earthquake that some are blaming on the local geothermal power plant. A government panel is investigating claims that the plant triggered a magnitude-2.7 earthquake on 15 August in the town of Landau…. If the panel finds against the company that built the plant, Geox of Landau, it could be shut down [New Scientist].
Geox hasn’t been very vocal about the cause of the quake, but company officials initially denied any responsibility for the temblor and continue to dispute the government’s data linking the project to the quake. The panel will, among other things, have to sort through the conflicting data presented by the company and government scientists [The New York Times].
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Watermelons could do more than grace the tables at picnics across the land: They could also serve as a source of biofuel. Researchers fermented watermelon juice to produce ethanol, according to a study published in Biotechnology for Biofuels, and while the melons aren’t likely to become a primary biofuel crop, the process could help out farmers.
Nearly one-fifth of the watermelon crop grown in the United States is left in the fields after harvest because of defects on the melons’ rinds. “It’s not that there’s anything wrong with the melon on the inside, but our only method of judgment is the outside,” said [lead author] Wayne Fish [Greenwire]. Although farmers often till the abandoned melons into the soil, the value of the nutrients provided by this practice is much less than the overall cost to farmers of losing so much of their crop.
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A startup biotechnology company unveiled its grand plans for a new energy source yesterday–although it didn’t share a few crucial details. The company, Joule Biotechnologies, says it has genetically engineered an organism that can efficiently produce unprecedented amounts of liquid fuel. However, chief executive Bill Sims will not reveal what that marvelous organism is. “If I tell you what the organism is, I’m inviting everyone else to take part in a transformational, evolutionary, game-changing technology” [Boston Globe], he says.
The company’s announcement comes soon after both ExxonMobil and Dow Chemical announced their investments in algae-derived biofuel production, and Joule’s technology has some similarities with those two projects. Like both those algae projects, Joule says it won’t be harvesting a plant and squeezing the oil out of it; instead the organism will secrete the fuel. But Sims says his organisms aren’t algae. In addition, Sims said the organisms do not need fresh water but can be grown in both brackish water or graywater, which is nonindustrial waste water from sources like baths and washing machines [Reuters].
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Just two months ago, we reported that the federal government’s hydrogen car program was going down like the Hindenburg, as the Department of Energy announced that it would slash research funding. At the time, Energy Secretary Steven Chu said that after years of research, hydrogen-fueled cars were still years away from commercial viability. “We asked ourselves, ‘Is it likely in the next 10 or 15, 20 years that we will convert to a hydrogen car economy?’ The answer, we felt, was ‘no,’” Chu said in May [CNET].
But the program has proven harder to take down than the flammable zeppelin: Both houses of Congress seem inclined to restore funding. The House of Representatives voted on an energy package on Friday that includes $153 million for hydrogen and fuel cell research, and the parallel bill that will go before the Senate currently includes $190 million for the program.
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Wind power may prove to be a promising source of clean energy, but it can also be deadly to bats. Not only can the animals be sliced by the blades of wind turbines, but the sudden drop in air pressure around the turbines can also cause bats’ lungs to explode. An electromagnetic field emitted near the turbines, however, may help bats steer clear of them, according to a new study published in the Public Library of Science One.
Bat casualties near wind turbines have proven to be significant: In 2004, over the course of six weeks, roughly 1,764 and 2,900 bats were killed at two wind farms in Pennsylvania and West Virginia, respectively [LiveScience]. If wind power continues to become increasingly prevalent, so too might the turbines become a growing threat to bat populations. “Given the growing number of wind turbines worldwide, this is going to be an increasing problem, no question about that,” said [co-author] Paul Racey [LiveScience].
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Earlier this week, the oil giant ExxonMobil announced a significant shift in direction: Rather than drilling ever downward in an attempt to find more oil, the company will invest heavily in green, growing things that can manufacture biofuel. Exxon plans to put $600 million into the production of algae-based biofuels, and will partner with the genetics company Synthetic Genomics run by genomics pioneer Craig Venter. The announcement came just a week after another industrial giant, Dow Chemical, declared its own investment in algae technology.
The biofuel industry is currently facing a shift from first-generation biofuels to so-called advanced biofuels as evidence mounts that corn-based ethanol and soybean biodiesel are not as ecologically, socially or economically sustainable as many first thought…. Algae have been touted as a better organic material for producing biofuel by many researchers and entrepreneurs. It does not take up any arable land and can be grown in controlled conditions; at a basic level algae only needs water, sunlight, carbon dioxide and some nutrients to grow [CNN].
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What a difference a year makes. In July 2008, Texas billionaire T. Boone Pickens offered up the “Pickens Plan” to end U.S. dependence on foreign oil by producing more electricity from huge wind farms, and running vehicles on natural gas instead of gasoline. To kick-start the transformation, Pickens announced that he would construct the biggest wind farm ever in Texas. Pickens announced that his company, Mesa Power LP, would order 687 wind turbines, or 1,000 megawatts of capacity, from GE for about $2 billion. By 2014, he expected to expand the Panhandle wind farm to 4,000 megawatts. That’s a massive amount of wind power. One nuclear power reactor is typically about 1,000 megawatts of capacity. Most wind farms offer only a few hundred megawatts [Dallas Morning News].
Now, one year later, Pickens has declared that he’s canceling the enormous Texas wind farm for the foreseeable future, and is scrambling to figure out where to place the 687 wind turbines that he already ordered. (He may end up establishing five or six small wind farms in the Midwest, Pickens suggested.) The project was largely done in by major problems with electricity transmission. Wind farms and other forms of clean energy are usually located in remote locations and require huge new transmission lines to carry the electricity to cities. Mr. Pickens initially hoped to finance the construction of his own transmission lines but was unable to secure funding [The Wall Street Journal].
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At a Texas industrial site, the vats of chemicals may soon stand adjacent to long tubes filled with algae. Industrial giant Dow Chemical today announced a new partnership with startup company Algenol Biofuels to build a pilot plant, which will use algae to convert carbon dioxide emissions into ethanol. That ethanol could be used either as a biofuel or, eventually, as an ingredient for Dow’s plastics.
Pond scum is one of the hottest trends in green technology, and a few dozen companies are racing to bring algae-based biofuels to the market. But one prominent algae company, GreenFuel, went out of business just a few months ago, leading some commentators to believe that we are a longer way off from commercialization than claimed by breathless algae start-up press releases [Greentech Media]. If Dow and Algenol can bring their plans to fruition, it will be the most compelling argument yet that the renewable energy source does have the potential that its supporters say.
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In a 219-212 vote, the House of Representatives passed on Friday a climate bill designed to decrease U.S. dependence on oil and create “green” jobs. It’s now up to the Senate to pass or veto the American Clean Energy and Security Act, which also proposes a cap-and-trade system to impose historic limits on U.S. greenhouse gas emissions.
The bill has been tweaked since it was approved in May by the House Energy and Commerce Committee, and it remains unclear how much progress the Senate will make on the bill. In it, U.S. emissions of carbon dioxide and other greenhouse gases would be reduced 17 percent by 2020 from 2005 levels. That is less ambitious than the 20 percent initially sought, but slightly more aggressive than the approximately 15 percent Obama proposed. The legislation sets further pollution reduction goals — 42 percent by 2030 and 83 percent by 2050, with the latter just slightly higher than Obama suggested [Reuters]. The bill also speeds up the administration of $346 million in stimulus funds for the development and implementation of energy efficient technology.
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When Chicago’s Sears Tower was completed in 1973 the 110-story building was the tallest in the world, and it offered a bold example of the human potential to build towards the clouds. Now, although the tower lost the title of tallest building to other skyscrapers in the 1990s, the tower hopes to dazzle the world anew with a fresh vision of urban architecture: The building will soon receive a $350 million environmental retrofit, with wind turbines, solar panels, and gardens all added to the building’s staggered rooftops.
The 5-year project would reduce the tower’s electricity use by 80 percent and save 24 million gallons of water a year, building owners and architects said…. “Our plans are very ambitious,” said John Huston of American Landmark Properties, who represents the building ownership. “Our plans to modernize and transform this icon will re-establish Sears Tower as a leader, a pioneer” [AP].
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Sleek, streamlined wind turbines have become the icons of the green movement, but for all the growth in wind power — it accounted for 42% of all new electricity generation added to the U.S. grid last year — wind still makes up less than 3% of America’s total electricity generation [Time]. Its marginal role has led many to wonder whether the technology is worth investing in, and whether wind power is capable of supplying enough electricity to meet our needs. To answer those questions, researchers analyzed wind patterns around the world and found that wind power could theoretically supply the entire world with energy, and then some.
The study, published in the Proceedings of the National Academy of Sciences, isn’t being presented as a realistic plan to achieve a renewable energy nirvana; it’s simply an attempt to provide a sense of what’s possible [Ars Technica]. But the researchers’ reckoning of what’s possible is quite impressive: maxing out deployment of current-generation technology could produce five times the total energy used in the world today, and 40 times the electricity [Ars Technica].
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The newest attempt at a viable hydrogen-powered car is a tiny two-seater that should have early adopters tootling around the United Kingdom next year, according its manufacturer, a startup company named Riversimple. While momentum has recently shifted away from hydrogen cars and back towards electric vehicles, company executives say their Riversimple Urban Car meets the challenges posed by hydrogen fuel cell technology. Its makers claim that by starting from scratch to build a small, efficient car they can make it commercially viable more quickly than the major auto manufacturers experimenting with adapting more conventional cars to hydrogen [New Scientist].
A prototype of the light-weight city car was unveiled today in London. Riversimple executives drove up in the vehicle, which has a top speed of 50 miles an hour and can travel about 200 miles before refueling with liquid hydrogen. The car is packed with novel approaches to car design, but company founder Hugo Spowers says it’s the business model that really sets Riversimple apart. Users willl lease the car for an estimated $315 per month, a price that includes the cost of hydrogen fuel and any repairs. The company asserts that in the leasing model, the vested interest for the manufacturer is in producing long-lasting, fuel-efficient, high-quality products [BBC News]. The company will first try a small pilot program in one (to be determined) city in England, where a gas supply company will partner with Riversimple to build fuel stations.
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The oil-rich and weedy plant jatropha has been hailed as the most promising source of biofuel on the planet, and one airline has already begun testing a jatropha-derived fuel in its jumbo jets. But a new analysis suggests that the plant may not be a miracle crop destined to solve all our energy problems: Current jatropha plantations are not realising the oil yields that drove the “Jatropha euphoria” [EcoWorldly].
It was previously thought that the hardy jatropha plant would require less water than other biofuel crops like sugarcane and corn and could grow in marginal soil, so growers wouldn’t have to take fertile land out of agricultural use. But the new study rebuts that assumption. “The claim that jatropha doesn’t compete for water and land with food crops is complete nonsense,” says study coauthor Arjen Hoekstra. The researcher says it’s true that the plant can grow with little water and can survive through periods of drought, but to flourish, it needs good growing conditions just like any other plant. “If there isn’t sufficient water, you get a low amount of oil production,” Hoekstra says [Technology Review].
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The electric car under development at General Motors has been heralded as a potential savior of both the American car industry and the environment, but in aftermath of the automaker’s bankruptcy filing many questions are being raised about the Chevy Volt’s future. GM executives swear that the cutting edge vehicle is still on track to reach auto dealerships late next year: GM executive Jon Lauckner says that the bankruptcy filing “has no bearing on the Volt, quite frankly…. We’re not anticipating any changes. November 2010 remains our date with destiny” [Wired.com]. Lauckner added that engineers have already begun assembly of the pre-production Volts that will be used to test handling and durability, and for crash tests. But some outside experts wonder whether bankruptcy courts will permit the expensive Volt program to continue.
The Volt could revolutionize driving for many commuters, allowing them to cruise to and from work without ever stopping by a gas station to fill up. Different than traditional hybrid or plug-in hybrid vehicles, the Volt can go 40 miles on a single charge on the electric engine and then a smaller, gasoline-powered combustion engine generates electricity for the motor, acting as a range extender [GreenBiz.com]. GM has said that the Volt should be able to drive 400 miles on a full charge and a full tank. The car is expected to sell for around $40,000.
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