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A closeup of the wood fibers used by the researchers in their sodium-ion battery (Image: U...

Li-ion batteries may be ok for your smartphone, but when it comes to large-scale energy storage, the priorities suddenly shift from compactness and cycling performance (at which Li-ion batteries excel) to low cost and environmental feasibility (in which Li-ion batteries still have much room for improvement). A new "wood battery" could allow the emerging sodium-ion battery technology to fit the bill as a long-lasting, efficient and environmentally friendly battery for large-scale energy storage.  Read More

NRG's Power2Serve

One of the pressing needs in the event of a large-scale disaster or emergency is power. With Power2Serve, energy provider NRG is addressing this need head on in the form of 68 feet (21 m) of truck and trailer equipped with 40 kW of electrical generation and a Wi-Fi pavilion which people can use to communicate and keep abreast of events.  Read More

SolePower and its ankle strap battery

Two years ago, University of Wisconsin–Madison engineering researchers Tom Krupenkin and J. Ashley Taylor developed a device designed to harness the power of walking to charge an internal battery. Now, a new product called SolePower is looking to do the same thing, and its designers are turning to Kickstarter to bring it to the masses. The difference between this and other devices is that it comes in the form of a removable insole, so it can be used in different kinds of shoes.  Read More

In 2009, electric bikes averaged the same speeds as 1936. In 2013, their speed had increas...

MotoCzysz today won its fourth TT ZERO race in a row, demonstrating just how far the electric motorcycle has come in a short time. The first five runnings of the TT ZERO event at the 105 year-old Isle of Man motorcycle racing festival suggest electric bikes will catch up to the fastest gas-powered bikes in about five years. Every practice session has seen lap speeds increase. The inaugural 2009 electric lap record was run at the same speed as the circuit record in 1936 on the first Manx Norton. This week, electric motorcycles have surpassed the laps times of Hailwood's RC181 Honda 500, Duke's Gilera, Agostini's MV Agusta fire engines, and they're about to better the Kawasaki KR750, Suzuki RG500 and Yamaha TZ750 two-strokes of the mid-seventies. Four decades of progress in 48 months. Read on  Read More

Makani Power's Wing 7 prototype Airborne Wind Turbine (AWT) will now benefit from the back...

Having already put its Google Wallet where its mouth by backing a solar power tower plant in California to the tune of US$168 million, Google has now turned to wind power. According to a report from Bloomberg Businessweek, the search giant has acquired Makani Power, a California-based startup whose Airborne Wind Turbine (AWT) technology first caught our interest in 2011.  Read More

Rice University engineering students Tyler Wiest, Carlos Armada, Julian Castro and David M...

We’ve seen Pavegen’s energy-harvesting tiles turning up in a variety of places to harvest some of the kinetic energy generated while walking or running over them. But a team of students at Rice University has put the shoe on the other foot with PediPower – a prototype device that attaches to a shoe to harvest energy generated when the heel hits the ground.  Read More

SheerWind's Invelox wind power generation unit is said to increase energy output by 600 pe...

SheerWind, a wind power company from Minnesota, USA, has announced the results of tests it has carried out with its new Invelox wind power generation technology. The company says that during tests its turbine could generate six times more energy than the amount produced by traditional turbines mounted on towers. Besides, the costs of producing wind energy with Invelox are lower, delivering electricity with prices that can compete with natural gas and hydropower.  Read More

New technology out of the University of Georgia allows energy generated by plants through ...

Millions of years of evolution has resulted in plants being the most efficient harvesters of solar energy on the planet. Much research is underway into ways to artificially mimic photosynthesis in devices like artificial leaves, but researchers at the University of Georgia (UGA) are working on a different approach that gives new meaning to the term “power plant.” Their technology harvests energy generated through photosynthesis before the plants can make use of it, allowing the energy to instead be used to run low-powered electrical devices.  Read More

Artist's conception of the interlocking 3D battery electrodes exchanging ions (Image: Univ...

There can be little doubt that people love their mobile devices. But, by leaving them high and dry at the most inconvenient of times, this love generally doesn't extend to the batteries that power said devices. New microbatteries developed by researchers at the University of Illinois at Urbana-Champaign (UIUC) that measure just a few millimeters in size, yet are powerful enough to power a mobile phone may be more likely to inspire a little love.  Read More

A new system being developed at MIT would store excess energy in concrete spheres on the s...

The intermittent nature of wind and solar power generation is one of the biggest challenges facing these renewable energy sources. But this isn’t likely to remain a problem for much longer with everything from flywheels to liquid air systems being developed to provide a cheaper form of energy storage than batteries for times when the wind is blowing or the sun isn’t shining. A new concept out of MIT can now be added to the the list of potential solutions. Aimed specifically at offshore wind turbines, the concept would see energy stored in huge concrete spheres that would sit on the seafloor and also function as anchors for the turbines.  Read More

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