American cars with turbochargers are currently few and far between, but that may soon be changing. While a significant and sustained increase in the price of fuel would greatly boost demand for turbochargers, auto manufacturers’ need to comply with carbon emissions and fuel economy targets will be the primary drivers of the domestic turbocharger market. When compared with cars with similar horsepower, those with turbocharged smaller engines can reduce emissions by 20 to 40 percent, and can increase fuel economy by 15 to 20 percent.

As is often the case, the U.S. lags Europe in adoption of this technology, partly because it has primarily been used with diesel engines. Turbochargers are now used in about half of all European cars. By comparison, U.S. penetration is at just five percent.

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A U.S. company and its Chinese partner will test electric buses using ultracapacitors that would be chargeable at stops every few miles. The latest ultracapacitors store only 5 percent of the energy that lithium-ion batteries can hold, making them impractical for passenger vehicles. But proponents say the fact that buses have to stop frequently — and at predictable locations — make them a more logical use of the technology.

Virginia-based Sinautec Automobile Technologies and Shanghai Aowei Technology Development Company, a partnership that has run 17 similar runs outside Shanghai for the last three years, will test the technology this week at American University in Washington, D.C.

Unlike traditional trolleys that stay connected to electric lines throughout their route, there is a collector on top of the Sinautec vehicle that would connect to a re-charging line at bus stops every two or three miles. Within three minutes, banks of ultracapacitors located beneath the seats of the bus would re-charge.
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Safe drinking water from thin air? That’s the claim of San Luis Obispo, California, based Atmospheric Water Systems (AWS), which offers a product line of air-filtering water systems under the brand Dewpointe. Founded more than a year and a half ago by Co-owner Stephen Krauss, Dewpointe systems takes a different approach to creating safe drinking water. Rather than filtering the water that comes through a pipe, Dewpointe filters the moisture out of the air to create drinking water. There are no water pipes attached to the machine. The rectangular device simply plugs into a wall.

I caught up with Mr. Krauss on the second day of this year’s West Coast Green event held at Fort Mason in San Francisco, California, and found out more about the Dewpointe system.

How does it work? Magic?

No, similar to a dehumidifier, Dewpointe pulls moisture out of the air; but unlike a dehumidifier, the goal of this device is to make that moisture drinkable. A series of filters take out 99.99% of the impurities and create clean drinking water. Impressive as this may sound, it also means that there must be moisture in the air for Dewpointe to operate effectively. Hence, all tropical or even moderate humidity environments in the United States such as coastal states, the south and mid-west work well. In desert environments or low moisture areas such as the south-western US, the Dewpointe will struggle.

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Ormat Technologies, Inc., announced today that its Israeli subsidiary, Ormat Systems Ltd., has signed a Joint Venture Agreement (“JVA”) with Sunday Energy Ltd. (“Sunday”), an Israeli solar integration company, to construct and operate solar-photovoltaic (“PV”) energy systems in Israel with a total capacity of 36 megawatts (MW).

Under the JVA, Sunday will contribute the rights to all of its property and roofs required to develop solar energy systems above 1 MW to special purpose entities (“SPEs”). Ormat will own 70% of each SPE and will also have control of it. Under the terms of the agreement, Ormat and Sunday will act, jointly, as the engineering, procurement and construction (“EPC”) contractor and the operator of each project in accordance with each company share in the SPEs .

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A major new regulatory requirement, starting January 1, 2010, will affect most large industrial and utility combustion sources in the US.

Fossil fuel and industrial greenhouse gas (GHG) suppliers, motor vehicle and engine manufacturers, and facilities that emit 25,000 metric tons or more of CO2 equivalent per year will be required to report GHG emissions data to EPA annually. This threshold is equivalent to about the annual GHG emissions from 4,600 passenger vehicles.

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Last month Thomas L. Friedman wrote in the New York Times an interesting op ed on why America should tax more gasoline. This occurs as the United States is the least forceful OECD country regarding gas tax. US drivers pay on average less than ten euro cents of tax per litre when their German, British, Italian, Turkish or French counterparts pay as much as 60 to 70 cents per litre. Even Australia does better with more than 20 cents per litre.

The situation varies from State to State with Alaska only taxing 26.4 cents per gallon of gasoline while California taxing up to 63.9 cents per gallon. Federal authorities already tax 18.4 cents per gallon for gasoline and 24.4 cents for diesel.

Since the United States’ addiction to oil is widely documented and recognized as a threat by both sides of the political spectrum, why shouldn’t it tax oil more to curb the consumption?

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For more than 40 years, scientists have dreamed of collecting the sun’s energy in space and beaming it back to Earth. Now, a host of technological advances, coupled with interest from the U.S. military, may be bringing that vision close to reality.

Despite the enormous promise of solar power, the drawbacks of the technology remain significant. People need electricity every day, around the clock, but there’s no part of the United States that is cloud-free 365 days a year — and no solar radiation at night. You have to find some way to store the energy for those sunless periods, and there’s not yet a large-scale way to do that.

Moreover, the best locations for solar arrays — the deserts of the American Southwest — are far from the centers of population, so even under the best of circumstances you’d have to send electricity many hundreds of miles through transmission lines that don’t yet exist.

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A group of recent Massachusetts Institute of Technology graduates has developed a roof tile that remains white in summer to reflect the sun’s energy then turns black in winter to absorb the sun’s rays and heat buildings.

The so-called “thermeleon” (rhymes with chameleon) technology uses a common commercial polymer trapped between layers of plastic, including a black layer at the back. When the temperature drops, the white layer disappears, exposing the black layer.

The MIT graduates say the tiles reflect about 80 percent of the sun’s heat when they are white, translating into a 20 percent savings in cooling costs. When the tiles turn dark, they absorb about 70 percent of solar energy.

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There had been rumors about it earlier this weeks on Globes, Israel’s financial newspaper. But the story was took down, I guess because of a leak.

Now General Electric has unveiled its good news finally, according to ABC News, that it is investing in the Israeli solar technology company SolarEdge. The company allows photovoltaic panels, which convert sunlight into power, to operate up to 25% more efficiently.

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A nanorobot which defends a single cell against dangers such as the AIDS virus or H1N1 is the main character of a video game about molecular biology that is being developed by the Universidad Santo Tomas, in Chile.

Kokori, which means “collective game” in Rapanui (the language spoken in Easter Island), is one of six projects that won 2.3 million dollars in a contest about applying informative technology for educational purposes, organized by the National Commission of Scientific and Technological Research.

Of the six projects, Kokori, which uses information taught at the high school level biology, won $424,000.

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