Energy

In a mashup of biology and electronics, researchers said they've made progress in making low-cost solar cell from plants.

A paper published in Scientific Reports today describes an improved method for making electricity-producing "biophotovoltaics" without the sophisticated laboratory equipment previously needed. Researchers said custom-designed chemicals could be mixed with green plants, even grass clippings, to create a photovoltaic material by harnessing photosynthesis.

"Take that bag (of chemicals), mix it with anything green and paint it on the roof," said MIT researcher Andreas Mershin, who is one of the paper's co-authors, in a statement. He … Read more

Ever suspect your apartment building's heating was poorly managed because you needed to open the windows in winter? Now New York City residents can prove it with data.

Columbia University yesterday released results from a mapping project that shows, block by block, how much energy buildings consume. Providing the data in a visual format makes it easier to locate buildings that are good candidates for efficiency improvements or potentially on-site energy production.

Buildings represent about two thirds of the energy used in New York City, which is a much higher percentage than other parts of the country where transportation … Read more

Startup SeaMicro first packed lots of low-end Atom processors into servers to save power and space. Now Intel's beefy Xeon server chips are also getting the low-power treatment.

SeaMicro today announced its SM 10000-XE server, which it claims is the most energy-efficient Xeon server ever built. It consumes one half the power of a server with comparable computing muscle, takes one third of the space, and increases the available bandwidth twelve times, the company said.

The company is one of few companies that have taken a radical approach to server design by using arrays of less powerful processors, called &… Read more

SOUTH BOSTON--From this grungy warehouse converted into a startup incubator, Sam White and Sorin Grama plot how to chill milk for poor Indian villagers.

The four-year journey of their startup, Promethean Power, has included several trips to India and dramatic engineering detours. Now finally, their rapid milk chillers, which feature a novel energy-storage technology, will be installed at three milk processing centers in India in the coming months.

The two company co-founders had originally intended to build a solar-powered milk chiller that would improve the lives of Indian farmers and advance renewable energy. But despite engineering some nifty power electronics, … Read more

DOE researchers are going to the nanoscale to pack more energy into fuel cell vehicles.

Lawrence Berkeley National Lab yesterday detailed research plans for a three-year, $2.1 million Department of Energy-funded project to develop materials that would improve hydrogen storage. The basic research will include technical contributions from the National Institute of Standards and Technology (NIST) and General Motors.

Storage is one of the main technical barriers to hydrogen fuel cell vehicles. Today hydrogen gas is compressed to very high pressures and pumped into onboard tanks, but that method doesn't match the range of gasoline-powered cars. Also, energy … Read more

Carmakers' pursuit of fuel efficiency and sustainability is moving to auto interiors.

Ford said today that its upcoming Escape SUV will sport door bolsters made of kenaf, a flowering tropical plant. The company estimates using a plant-based material will offset 300,000 pounds of oil-based resins this year.

The door bolsters will be 25 percent lighter and so help improve fuel efficiency as well. They will be a 50-50 mix of kenaf and polypropylene and be made by Indiana-based supplier International Automotive Components.

Kenaf plants grow long stems like bamboo. The fiber can be processed into different materials, such as … Read more

Startup Oorja Protonics has dodged some of the traditional barriers to fuel cell vehicles, at least with forklifts. In the future, its hybrid approach could be used on cars and trucks, too.

The Fremont, Calif.-based company is in the process of raising funding from corporate partners to ramp up production of its product. The venture-backed company is also profitable, something that few other fuel cell companies can claim.

Rather than use hydrogen as a fuel, Oorja Protonics converts the liquid fuel methanol into electricity in fuel cells. And its onboard fuel cells are designed only to provide a trickle … Read more

Advances in printed electronics could rapidly redefine what a "computer" is.

Oslo, Norway-based ThinFilm Electronics announced plans to create an electronics device with basic computing components printed on a strip of plastic. The "smart tag" features ThinFilm's memory with printable transistors from research company PARC, a battery, and display.

It appears that the first use of the very simple computing device will be to monitor temperature on perishable goods. South African company PST Sensors and ThinFilm plan to make a prototype of a disposable temperature sensor to monitor foods or medicine, such as vaccines.

When … Read more

Armed with little more than data sets, APIs, pizza, and beer, a group of software developers this weekend set out to demonstrate the power of information technology to help the environment.

The Cleanweb Hackathon attracted about 100 developers in New York City as well as a panel of judges that included New York City's chief digital officer and the U.S. chief technology officer. The first hackathon took place last September in San Francisco.

Yesterday afternoon, 15 teams, including one from Columbia University, showed off their "hacks" and received awards. The Web and mobile applications touched on … Read more