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Will Stewart has a guest post up at The Oil Drum on passive solar design techniques - Passive Solar Design Overview - Part 1. Also, at TOD, a post on the Passivhaus standard from another long-time commenter, marjorian - US Housing and the Passive Home Standard. Passive solar refers to the design and placement of a building to enable solar heating without the need for sensors, actuators, and pumps, in contrast to active solar, which utilizes pumps/blowers, sensors, and logic control units to manage collection, storage, and distribution of heat. The two techniques are not exclusive, however, and can work together effectively. As solar radiation (insolation) is a diffuse energy source, and not at the beck and call of a thermostat, passive solar design techniques are at their best when combined with other related methods, such as energy efficiency (insulation, weatherization, building envelope minimization), daylighting, passive cooling, microclimate landscaping, and a conservation lifestyle (i.e., temperature settings, raising and lowering of insulated shades, etc). Most of these topics will be covered in other articles, though passive cooling will be addressed in this series, which is intended as an overview, as a complete engineering treatment on passive solar design would require several dozens of articles.

In order to start you new green career as an ethanol lab technician, you will need to get some schooling under your belt. If done correctly, you should be in your new job within about two year.

As President-elect Barack Obama prepares to tackle the vast problems ahead for America, he has consistently made two bold proposals. First, he intends to make an immense investment in infrastructure - roads, bridges, railways - to jump-start jobs. Second, he plans to boost clean green technologies to make up for the squandered opportunities of the Lost Decade. These are both powerful, worthy ideas. But they would be far more powerful if they were directly connected. The incoming administration has a historic opportunity to accomplish five major goals at once through a massive investment in stopping the waste of energy and dollars pouring out of American homes.

Japan has announced plans to build its first new geothermal power stations in nearly two decades in a bid to tap the nation's domestic energy sources. A string of geothermal power plants are to be developed by a number of firms keen to capitalise on the active volcanic landscape that spans the country, while the government is also currently compiling guidelines supporting the development of such energy sources. Home to 108 active volcanoes - ten per cent of the world's active volcanoes - Japan is in a prime position to tap into underground geothermal energy sources. As a nation with few natural resources, Japan has long been dependent on importing substantial quantities of crude oil and natural gas. The country's renewed focus on geothermal energy marks a desired shift away from its dependency on imported energy sources which has made it susceptible to increasingly volatile prices.

Growing concerns over climate change and energy security have kicked research on alternative energy sources into high gear. The list of options continues to expand, yet few papers have comprehensively reviewed them. And fewer still have weighed the pros and cons in as much depth as a new study published earlier this month in the journal, Energy & Environmental Science. The results are a mixed bag of logical conclusions and startling wake-up calls. The review pits twelve combinations of electric power generation and vehicular motivation against each other. It is a battle royal of nine electric power sources, three vehicle technologies, and two liquid fuel sources. It rates each combination based on eleven categories. And it was all compiled by one man, Mark Jacobson, professor of civil and environmental engineering at Stanford University.

The Scottish Government has created one of the biggest international innovation prizes in history - a £10 million challenge for advances in wave and tidal energy. At a ceremony this week in historic Edinburgh Castle, details of the 'Saltire Prize' were revealed to leading scientists, environmentalists and potential entrants after being finalised by a panel of international experts who comprise the prize Challenge Committee. Dr Anne Glover, Scotland's Chief Scientific Adviser and Chair of the Challenge Committee, said the Saltire Prize will be awarded to the team that can demonstrate in Scottish waters a commercially viable wave or tidal energy technology that achieves a minimum electrical output of 100GWh over a continuous two year period using only the power of the sea and is judged to be the best overall technology after consideration of cost, environmental sustainability and safety.

Siemens Building Technologies is sponsoring a Virtual Trade Show on December 10th and 11th from 8:00am - 6:00pm CST. This Virtual Energy Forum is a two day online-only event focused on how leading companies can adopt better energy management practices to cut costs, while at the same time adopting clean energy alternatives -- presenting alternative energy technologies, policies, and best practices in a live, interactive environment. The event is designed to meet the needs of corporate energy executives in a way that is not possible with physical events, webinars or other means.

The second Environmental Hall of Fame ceremony will be held in Chicago beginning tomorrow through Saturday, Nov. 20-22. Among the environmental celebrities to be honored are Pierc Brosnan (James Bond) and his wife, who have been activists in the movement. Two of the New Energy Congress' Global Top 100 Clean Energy Technology companies will also receive awards: Stirling Energy Systems, a concentrated solar technology that heats a highly-efficient Stirling engine, has been in first place in the Top 100 for over a year. Green Power Inc., which is commencing commercial production of a 100 ton per day municipal waste-to-diesel plant, recently rose to 15th place on the Top 100 list.

Cranking up the heater or throwing on an extra sweater are two ways to cope with a drafty house that allows chilly air to seep in through cracks, doors and windows. eeting of Passive House California organization, free and open to the public: When the sun blazes in the summer, that same house warms up rapidly, prompting people who live there to close the shades or drapes, pour an icy beverage and possibly flip on an air-circulating fan.

A trend is spreading through small towns across Germany. Tight budgets have forced hard decisions, including turning the lights out at night. No one is on the streets at night anyway, so why pay for the electricity to run the street lights? But residents have revolted. They fear an uptick in crime, or simply for their safety while stumbling through the dark streets to walk the dog or return from a late night out. Proving necessity is the mother of invention, a handful of clever solutions are being implemented; some with interesting consequences. The solution seems to have started in the small town of Morgenröthe-Rautenkranz in the Erzegebirge. Over one and a half years ago, the 900 citizens of Morgenröthe-Rautenkranz were plunged into darkness each night, but given the option to turn the lights on by mobile telephone. Older citizens were concerned about their ability to master this new technology, but practice makes perfect. The first two weeks of the program, the lights remained on almost all night long as residents remained awake late for an opportunity to test the new system! But now the lights stay off except when needed. The town saves 4000 euros ($5300) per year. According to the Berliner Morgenpost daily newspaper, Morgenröthe-Rautenkranz is the inspiration for 4300 person community of Groß Pankow, the most recent community to consider on-call streetlight.

Two things needed to make a comedy movie.

WASHINGTON (AP) - An Energy Department report concludes that wind turbines can produce a fifth of the nation's annual electricity needs within about two decades. That is about the same share of electricity produced today by nuclear power. Wind energy today accounts for only about 1 percent of the nation's electricity. The government report to be released Monday said by 2030 wind energy could account for 300,000 megawatts of power, or about 20 percent of the total electricity generated.

OK...gas prices are getting out of hand, and carbon emissions have been out of hand for a long time. So let's kill two birds with...well...five stones. We generally focus on high-technology here at EcoGeek, and how we can save energy with smart designs. But sometimes, there are simpler ways. In fact, an absolutely tremendous amount of gasoline could be saved in America with some very simple measures. We break it all down and figure out how much gas can be saved with some stupidly simple techniques.

a more stronger proof to prove that non-vegetarian diet is posing risk to whole world.

a self explanatory title......weird but true fact...........proves that every coin has two sides.

Test you skills by simply answering few questions related to enzymes and boost your confidence

Test you skills by simply answering few questions related to enzymes and boost your confidence

the short review on two of the best free servers............check out to know more

the comparison between two great captains of india.

The strangest and longest battle of the American West was fought not between early settlers and Indians but between two collectors of fossils. The Bone Wars, as the bitter clash became known, raged in the shadow of remote cliffs, in desert encampments, in university laboratories, and on the pages of academic journals.

In January 1912 a three-man party of explorers from the Australasian Antarctic Expedition set out from their base at commonwealth Bat, Adélie Land, to chart a huge section of the largely unknown continent. A year later two team members were died, and the expedition leader, Douglas Mawson, had barely survived both an epic lone journey across the Antarctic wastes and an appalling, mysterious illness that was to baffle medical science for the next 50 years.