Group items tagged

Technology Review has an article on a new system from Ener-G-Rotors which harvests energy from low temperature waste heat - Electricity from Waste Heat. Factories, data centers, power plants--even your clothes dryer--throw off waste heat that could be a useful source of energy. But most existing heat-harvesting technologies are efficient only at temperatures above 150 °C, and much waste heat just isn't that hot. Now Ener-G-Rotors, based in Schenectady, NY, is developing technology that can use heat between 65 and 150 °C.

Energy independence is still only a hypothetical goal for the U.S., but the owner of a tiny island off the coast of Connecticut says he has already achieved that feat and is offering his work as a model. Dean Kamen, inventor of the Segway and numerous medical devices, jokingly refers to his North Dumpling Island as an independent nation and himself as Lord Dumpling. Kamen claims to have his own currency and offers visas to visitors to the tiny island a few miles from Mystic, where he is the only resident.

Researchers at Ohio State University have accidentally discovered a new solar cell material capable of absorbing all of the sun's visible light energy. The material is comprised of a hybrid of plastics, molybdenum and titanium. The team discovered it not only fluoresces (as most solar cells do), but also phosphoresces. Electrons in a phosphorescent state remain at a place where they can be "siphoned off" as electricity over 7 million times longer than those generated in a fluorescent state. This combination of materials also utilizes the entire visible spectrum of light energy, translating into a theoretical potential of almost 100% efficiency. Commercial products are still years away, but this foundational work may well pave the way for a truly renewable form of clean, global energy.

Earlier this week, Portugal debuted the world's first commercial wave energy farm. Wave energy at the Agucadoura station is converted into electricity with the use of three red "sea-snakes", or cylindrical wave energy converters, that are attached to the seabed off Portugal's northern coast. Energy captured by the sea-snakes is carried to an undersea cable station, where it is then fed into the electrical grid.

What does "energy policy" mean to you? Does it conjure up questions of national security and terrorism? Or is it more about promoting cheap, renewable fuels? Maybe your take is about climate change and reducing greenhouse gases? Despite the various interpretations of the issue, or perhaps because of them, energy policy ranked high on the priority lists of voters of both parties on Nov. 4. Much of the interest can be attributed to the record run-up in oil and gasoline prices earlier in the year, which have since fallen off by about half, but increased awareness of climate change also played a big role.

Scientists working at Arizona State University's Laboratory for Algae Research & Biotechnology hope that tiny algae will be able to fuel jumbo jets. Now, their research is being spun-off as a $3 million research and commercialization collaboration between Heliae Development and Science Foundation Arizona to develop, produce and sell kerosene-based aviation fuel derived from algae. The researchers say they've already moved their work from the lab bench to a pilot-scale demonstration and production project.

ntel on Thursday showed off a wireless electric power system that analysts say could revolutionize modern life by freeing devices from transformers and wall outlets. Intel chief technology officer Justin Rattner demonstrated a Wireless Energy Resonant Link as he spoke at the California firm's annual developers forum in San Francisco.

Exxon Mobil agreed to pay out 75 percent of a $507.5 million (276 million pounds) damages ruling to settle the 1989 Exxon Valdez oil spill off Alaska, the Anchorage Daily News reported on Tuesday. Citing both Exxon and the plaintiff's lawyer, the Anchorage Daily News said the oil giant will release about $383 million for distribution to the nearly 33,000 commercial fishermen and others who sued Exxon after the worst tanker crash in U.S. history.

Something that has long been a dream of mine looks like it will be a reality soon. I have always wanted to see a solar powered solar panel factory, or a wind powered wind turbine factory. Basically you use a little fossil fuels to get started, then the first however many turbines/panels off the line power the factory, from then on in it's all carbon neutral.

A new lobbying firm for the group opposing a wind farm off Cape Cod filed a federal document last month reporting that its work for the Alliance to Protect Nantucket Sound is partially funded and shaped by an international energy conglomerate.

When it comes to tapping energy from the ocean, off-shore oil rigs are often what comes to mind. But the ocean itself is proving to be an efficient and environmentally friendly source of energy.

Environmentalists have hailed recent announcements by the US Interior Department that purport to protect wildlife, but both of these announcements carry with them asterisks that should give greens pause. On Friday, the Interior Department's Bureau of Land Management announced that some 340 square miles of ecologically sensitive land in the northeast section of Alaska's National Petroleum Reserve will be off limits to drilling.

A British company is poised to construct the world's first floating wind turbine, in a move that could herald a new generation of cheaper, less problematic wind energy. Blue H, a firm registered in the UK but based in Holland, aims to anchor its prototype device 12 miles off the coast of southern Italy later this month.

Last week, Pickens stopped by The Times to discuss his push to wean the U.S. off foreign oil by dramatically ramping up development of its infrastructure for wind and natural gas. Below is a partial transcript. T. Boone Pickens: We are now importing oil that costs us $700 billion a year. That's four and a half times what the Iraq war costs. Nobody running for president even speaks about this. Yet they talk a lot about the Iraq war. When you look at it, the world oil supply is about 85 million barrels of oil a day. And demand is about 86-plus million barrels a day.

There are times in the history of our nation when our very way of life depends upon dispelling illusions and awakening to the challenge of a present danger. In such moments, we are called upon to move quickly and boldly to shake off complacency, throw aside old habits and rise, clear-eyed and alert, to the necessity of big changes. Those who, for whatever reason, refuse to do their part must either be persuaded to join the effort or asked to step aside. This is such a moment. The survival of the United States of America as we know it is at risk. And even more - if more should be required - the future of human civilization is at stake.

Are you ready to find out if in fact your home is as energy efficient as it can be? Most of us have some big and some small things that they can do to better the cost efficiency of home. Whether you just want to drop a few dollars off of your gas bill or you are looking for a better way to fuel your home altogether, doing just a few things can make a tremendous amount of difference in your home.

Congress' financial bailout included an increase and extension on tax credits for solar energy users, still mostly an option for the rich. Earlier this year, Vicki Eckels put a state-of-the-art solar power system on her house in Fort Lauderdale for $43,000. ''I feel good because I'm a clean energy producer.'' The federal government will reward her by knocking off $2,000 from her 2008 taxes. If she had waited until next year to install the system, her tax savings could have been $12,900, thanks to a provision hidden within the massive bailout Congress passed last week.

With fuel prices rising and supplies dwindling, more and more inventors are turning their creativity towards cars that work without the need for barrels of gasoline. True, there have been a number of vehicles released that run on electricity but now designers are turning to another precious resource - air. It's not a new concept, as early as the 1920s, car designers were dabbling with the idea of cars that could run off air alone - one involved cycling air through a propeller at the front of the car - but few came to fruition. Now, designers are again looking at how air can be used to power a car.

Internet search giant Google - sometimes criticised for the amount of energy its servers use - now aims to do for the power grid what it did for the web. Having conquered the market for web search by first simplifying how it is done and then linking advertising to users' search terms, Google Inc is now funding green technology and using its brand power to lobby for policy change.