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Archive for the ‘energy’ category: Page 296

Apr 4, 2018

US Power Sector Carbon Intensity drops below 1,000 lb/MWh for lowest emissions intensity on record

Posted by in categories: energy, engineering

Mitsubishi Hitachi Power Systems (MHPS) and Carnegie Mellon University (CMU) today announced the release of the 2018 Carnegie Mellon Power Sector Carbon Index, at CMU Energy Week, hosted by the Wilton E. Scott Institute for Energy Innovation. The Index tracks the environmental performance of U.S. power producers and compares current emissions to more than two decades of historical data collected nationwide. This release marks the one-year anniversary of the Index, developed as a new metric to track power sector carbon emissions performance trends.

“The Carnegie Mellon Power Sector Carbon Index provides a snapshot of critical data regarding energy production and environmental performance,” said Costa Samaras, Assistant Professor of Civil and Environmental Engineering. “We’ve found this index to provide significant insight into trends in generation and emissions. In particular, the data have shown that emissions intensity has fallen to the lowest level on record, as a combination of natural gas and renewable power have displaced more intensive coal-fired power generation.”

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Apr 4, 2018

Research overcomes major technical obstacles in magnesium-metal batteries

Posted by in categories: chemistry, energy, nanotechnology

YES!!!


Scientists at the Department of Energy’s National Renewable Energy Laboratory (NREL) have discovered a new approach for developing a rechargeable non-aqueous magnesium-metal battery.

A proof-of-concept paper published in Nature Chemistry detailed how the scientists pioneered a method to enable the reversible of magnesium metal in the noncorrosive carbonate-based electrolytes and tested the concept in a prototype cell. The technology possesses potential advantages over lithium-ion batteries—notably, higher density, greater stability, and lower cost.

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Apr 3, 2018

Reaping the wind with the biggest turbines ever made

Posted by in category: energy

Wind power capacity is growing thanks to giant offshore turbines, but can they get much bigger?

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Apr 2, 2018

Scientists invent cheaper and greener wastewater treatment

Posted by in category: energy

A new energy-efficient process developed at Murdoch University is set to revolutionise wastewater treatment by significantly reducing the industry’s electricity consumption.

Dr. Ralf Cord-Ruwisch and Dr. Wipa Charles, along with two Phd students have collaborated with engineers Professor Liang Cheng and Dr. Lee Walker to form BioFilmTec Pty. Ltd – a research team designing and developing a new system that requires less than half the electricity to operate.

With current wastewater technology in Australia more than 100 years old, Dr. Cord-Ruwisch believes the time is right for a more energy-efficient approach.

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Mar 30, 2018

Understanding how society will change as we move to renewable energy sources

Posted by in categories: energy, health

Imagine waking up tomorrow in a world that doesn’t depend on oil.

That might seem far-fetched, but as engineers and scientists come up with new ways to harness renewable energy, those new sources of energy may soon shape the way our societies function and how we live our daily lives.

“We’re going to stop depending on oil long before we run out of it, so we really need to exercise our imaginations about what other futures are possible,” explains University of Alberta associate professor Sheena Wilson, who heads the Future Energy Systems energy humanities theme.

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Mar 29, 2018

Controlling rust makes beautiful ‘nanoflowers’ for storage

Posted by in categories: energy, nanotechnology

Researchers have developed a straightforward way to make a type of conducting polymers with high surface area—called “nanoflowers”—potentially useful for energy transfer and storage.

If you could brush your cheek against a nanoflower’s microscopic petals, you’d find them cool, hard, and… rusty. Common rust forms the inner skeleton of these lovely and intricate nanostructures, while their outer layer is a kind of plastic.

“Rust will always pose a challenge in Earth’s humid and oxygenated atmosphere,” says Julio M. D’Arcy, assistant professor of chemistry at Washington University in St. Louis and a member of the Institute of Materials Science and Engineering. “Corrosion makes structures fragile and decreases the ability of components to function properly. But in our lab, we’ve learned how to control the growth of rust so that it can serve an important purpose.”

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Mar 26, 2018

Clean power is shaking up the global geopolitics of energy

Posted by in categories: energy, sustainability, transportation

This special report will look at the energy transition from the perspective of America, the EU and China as well as petrostates such as Russia and Saudi Arabia. It will pinpoint winners and losers. It will argue that America is at risk of squandering an early lead, obtained by using natural gas and renewables to slash emissions, promoting clean technology and helping pioneer the Paris agreement. China is catching up fast. Saudi Arabia and Russia are in most obvious peril.


TO ENTER TAFT, two hours north of Los Angeles, you drive along the “Petroleum Highway”, past miles of billboards advertising Jesus. God’s country is also oil country. Spread over the sagebrush hills surrounding the town are thousands of steel pumpjacks (pictured), contraptions that suck oil out of the ground. They look like a herd of dinosaurs. Some Californians would describe the oil industry in the same way.

The oil produced at Taft is not produced by hydraulic fracturing, or fracking, as much of it is in Texas and North Dakota. It is so heavy it needs to be steamed out of the ground, in a process known locally as “huff and puff”. Yet Kern County, with Taft on its western edge, produces 144m barrels of oil a year, the second highest output of any county in America. Fred Holmes, a third-generation oilman and patron of the West Kern Oil Museum, says he is proud of the heritage, however much it irks local drivers of electric Tesla cars that the Golden State has such a carbon-heavy underbelly. “Oil is renewable energy. It just takes longer to renew,” he quips. He has built a giant wooden derrick at the museum to celebrate it.

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Mar 19, 2018

Numerai will give $1 million in crypto tokens to Kaggle users who sign up to its crowdsourced hedge fund

Posted by in categories: cryptocurrencies, energy, finance, information science, neuroscience

You may have heard of Numerai — the unorthodox hedge fund that crowdsources predictive stock market models from data scientists around the world. It is now seeking more brain power and announced today that it is giving away $1 million worth of cryptocurrency to Kaggle users who sign up. The San Francisco-based hedge fund incentivizes its community members by giving them digital tokens they can stake during tournaments to express confidence in their predictions. The best trading algorithms are then selected based on how they perform on the live market, and their creators are rewarded with more tokens.

Looking at most Wall Street hedge funds’ models, it’s fair to say open, collaborative efforts aren’t at their core. Movies like Wall Street, which portrays a greedy Gordon Gekko, and The Wolf of Wall Street, which highlights the derailing decadence of power and money, paint a rather unflattering picture of egocentric traders and financiers. Numerai founder and CEO Richard Craib is looking to change that.

The 30-year-old South African wants to create a more open and decentralized ecosystem for hedge funds. Rather than restricting access to trading data, Craib encrypts it before sharing it with his global network of data scientists, which effectively prevents them stealing and replicating the trades on their own. They can, however, use the shared information to build predictive models for the hedge fund.

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Mar 17, 2018

UK sets new wind power record as turbines deliver 14 gigawatts for first time – 37 per cent of nation’s electricity

Posted by in category: energy

Wind power in the UK set a new record today by generating 14 gigawatts for the first time – nearly 37 per cent of the country’s electricity.

The National Grid control room confirmed that 13.9 gigawatts was the highest ever metered wind output.

It was responding to a tweet by “wind-loving Walthamstow mum” Sarah Merrick, who said: “Think this might be a new wind record”.

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Mar 11, 2018

Chinese satellite filled with corrosive fuel could hit lower Michigan

Posted by in categories: energy, space

Look out for—falling space debris?

A large Chinese satellite that’s free-falling to Earth could crash into southern Michigan sometime between now and early April, researchers say.

According to a new report from the Aerospace Corporation, southern portions of lower Michigan fall into the regions listed as having a high probability of debris landing from the 8.5-ton space station. The report also identifies northern China, central Italy and northern Spain as regions with higher chances of impact.

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