Browsing All Posts filed under »Alt Energy«

Artificial photosynthesis to make plants green with envy

August 7, 2013


Natural photosynthesis – the remarkable ability of plants to transform sunlight into useful energy – powers virtually all life on Earth. But that’s not enough for some people. Caltech chemistry professor Nate Lewis and his colleagues aim to show Mother Nature how it really should be done. Their goal is to produce fuel as energy-dense […]

New material holds big energy hope

July 1, 2013


A new material that can store large amounts of energy with very little energy loss has been developed by researchers at the Australian National University. The material has practical applications in renewable energy storage, electric cars and defence and space technologies. “Dielectric materials are used to make fundamental electrical components called capacitors, which store energy,” […]

Is Anything Stopping a Truly Massive Build-Out of Desert Solar Power?

July 1, 2013


… The vast and glittering Ivanpah solar facility in California will soon start sending electrons to the grid, likely by the end of the summer. When all three of its units are operating by the end of the year, its 392-megawatt output will make it the largest concentrating solar power plant in the world, providing […]

Scientists Built a Mini Laser Gun That Generates Anti-Matter

June 30, 2013


Antimatter, created naturally above storm clouds, has now been created by device that uses magnets and tabletop lasers fired at a gold sheet through helium gas. A team of physicists working at the University of Michigan just published a paper about their device in Physical Review Letters. But basically, it’s small enough to sit on […]

Testing artificial photosynthesis

June 11, 2013


  With the daily mean concentrations of atmospheric carbon dioxide having reached 400 parts-per-million for the first time in human history, the need for carbon-neutral alternatives to fossil fuel energy has never been more compelling. With enough energy in one hour’s worth of global sunlight to meet all human needs for a year, solar technologies […]

New Process Generates Hydrogen From Aluminum Alloy To Run Engines, Fuel Cells

May 28, 2013


A Purdue University engineer has developed a method that uses an aluminum alloy to extract hydrogen from water for running fuel cells or internal combustion engines, and the technique could be used to replace gasoline. The method makes it unnecessary to store or transport hydrogen – two major challenges in creating a hydrogen economy, said […]

Solar plane sets distance record on US tour

May 24, 2013


The first manned aircraft that can fly day and night powered only by solar energy set a new distance record Thursday when it landed after the second leg of a cross-country US tour. The Solar Impulse project, founded and led by two Swiss pilots, aims to showcase what can be accomplished without fossil fuels, and […]

Compressing air for renewable energy storage

May 21, 2013


  Enough Northwest wind energy to power about 85,000 homes each month could be stored in porous rocks deep underground for later use, according to a new, comprehensive study. Researchers at the Department of Energy’s Pacific Northwest National Laboratory and Bonneville Power Administration identified two unique methods for this energy storage approach and two eastern […]

The solar-powered plane Solar Impulse prepares for flight around the world

April 26, 2013


The solar-powered plane Solar Impulse is preparing for a journey around the world scheduled to begin on May 1. It is powered by about 12,000 photovoltaic cells that cover its massive wings. They allow it to charge its batteries and enable it to fly day and night without jet fuel. Above, the Solar Impulse glides […]

‘Artificial leaf’ gains the ability to self-heal damage and produce energy from dirty water

April 22, 2013


Another innovative feature has been added to the world’s first practical “artificial leaf,” making the device even more suitable for providing people in developing countries and remote areas with electricity, scientists reported here today. It gives the leaf the ability to self-heal damage that occurs during production of energy. Daniel G. Nocera, Ph.D., described the […]

New solar-cell coating could boost efficiency

April 18, 2013


Throughout decades of research on solar cells, one formula has been considered an absolute limit to the efficiency of such devices in converting sunlight into electricity: Called the Shockley-Queisser efficiency limit, it posits that the ultimate conversion efficiency can never exceed 34 percent for a single optimized semiconductor junction. Now, researchers at MIT have shown […]

Power Your Car With Pee

April 12, 2013


… A scientist at Ohio University has developed a catalyst capable of extracting hydrogen from urine. That’s right. Urine. Now you can fill one tank while draining another. Gerardine Botte claims the device uses significantly less energy than is needed to extract hydrogen from water and says it could power hydrogen fuel cell vehicles in […]

Microalgae produce more oil faster for energy, food or products

April 8, 2013


Scientists have described technology that accelerates microalgae’s ability to produce many different types of renewable oils for fuels, chemicals, foods and personal-care products within days using standard industrial fermentation. The presentation was part of the 245th National Meeting & Exposition of the American Chemical Society (ACS) on April 7. Walter Rakitsky, Ph.D, explained that microalgae […]

1 Killed, 3 Hurt Accident at Ark. Nuclear Plant

March 31, 2013


One worker died and three others were injured Sunday morning when a heavy piece of equipment fell on them at an Arkansas nuclear plant, officials said. The workers were moving the equipment from the turbine building at an Entergy Arkansas plant in Russellville, about 70 miles northwest of Little Rock. The three injured workers were […]

New type of solar structure cools buildings in full sunlight

March 28, 2013


Homes and buildings chilled without air conditioners. Car interiors that don’t heat up in the summer sun. Tapping the frigid expanses of outer space to cool the planet. Science fiction, you say? Well, maybe not any more. A team of researchers at Stanford has designed an entirely new form of cooling structure that cools even […]

Sodium-air battery offers rechargeable advantages compared to Li-air batteries

March 1, 2013


Over the past few years, Li-air batteries (more precisely, Li-oxygen batteries) have become attractive due to their theoretical ability to store nearly as much energy per volume as gasoline. The key to this high energy density is the “air” part, since the batteries capture atmospheric oxygen to use in the cathode reaction instead of storing […]

NASA: A Nuclear Reactor To Replace Your Water Heater

February 22, 2013


NASA scientist Joseph Zawodny with a device used to test low-energy nuclear reactors (NASA) This reactor does not use fission, the process of splitting atoms into smaller elements employed by every commercial power reactor currently operating on earth. And it does not use hot fusion, the union of hydrogen atoms into larger elements that powers […]

Urine-powered generator unveiled at international exhibition

November 14, 2012


Four African girls have created a generator that produces electricity for six hours using a single liter of urine as fuel. The generator was unveiled at last week’s Maker Faire in Lagos, Nigeria, by the four teens Duro-Aina Adebola, Akindele Abiola, and Faleke Oluwatoyin, all age 14, and Bello Eniola, 15. So how exactly does […]

“Earthship Biotecture”: Renegade New Mexico Architect’s Radical Approach to Sustainable Living

October 13, 2012


Can you imagine a house from mostly recycled materials with no need for utilities that produces food and no waste? Watch this video at Democracy Now:

Solar cell consisting of a single molecule

October 2, 2012


Photosynthesis allows plants to convert light into chemical energy. Utilizing this process to produce electrical energy is a research goal worldwide. Now a team of scientists at the Technische Universitaet Muenchen and the Tel Aviv University has succeeded in directly deriving and measuring the photoelectric current generated by single molecules of the photosystem I. As […]

Nano-material sets record turning heat to electricity

September 22, 2012


A scrambled-up material has broken the record for converting heat into electricity. Findings published today in Nature suggest that disorder may be the key to creating a new generation of energy-harvesting technologies1. Laptop owners and car mechanics alike know that heat is a major by-product of any kind of work. In power stations, for example, […]

Uranium from seawater idea boosted with shrimp shells

August 23, 2012


Billions of tonnes of the uranium required for fuel pellets is found in the world’s oceans A happy coincidence in the seafood industry has raised the prospects of harvesting uranium – the fuel source for nuclear power – from seawater. Oceans hold billions of tonnes of uranium at tiny concentrations, but extracting it remains uneconomical. […]

Nikola Tesla museum campaign earns $500,000 online in two days

August 21, 2012


The development of a museum dedicated to the life and works Nikola Tesla has moved one step closer after an online campaign raised more than $500,000 in 48 hours. The fundraising effort, called “Let’s build a goddamn Tesla museum”, was devised by web comic The Oatmeal on behalf of the Tesla Science Center. It is […]

Claim: Car that runs on water invented

July 31, 2012


A Pakistani engineer has built a car that runs on water, a feat that left onlookers astounded. Engineer Waqar Ahmad drove his car using water as fuel Thursday during a demonstration for parliamentarians, scientists and students, Dawn reported from this Pakistan capital. He said cars could be driven by a system fuelled by water instead […]

T-shirts developed that could charge mobile phones

July 17, 2012


Scientists at the University of South Carolina have found a way to use a cheap T-shirt to store electrical power. It could pave the way for clothes that are able to charge phones and other devices. Experts predict that new technologies including roll-up smartphones and laptops will be on the market soon. These developments would […]

MIT Energy Scavenger Harvests Power from Light, Vibrations, and Heat

July 11, 2012


Christine Daniloff via MIT News Combining energy from multiple ambient sources generates a more stable supply for sensorsSmall power generators that can harvest energy from ambient sources like heat, vibrations, and light hold a lot of promise across a range of applications, particularly in things like remote monitoring. They can harvest the vibrations imparted by […]