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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

IBM is developing an affordable High Concentration PhotoVoltaic Thermal (HCPVT) system tha...

Solar power may provide a clean, abundant source of energy, but we know the sun's rays are capable of much, much more. Aside from generating electricity, we've seen solar energy harnessed to produce drinkable water as well, so why not combine the two processes into one system? That's what IBM and its collaborators are hoping to do with an affordable High Concentration PhotoVoltaic Thermal (HCPVT) system that uses cooling technology from supercomputers to harvest solar energy more efficiently and produce purified water at the same time.  Read More

The social networking giant's new live dashboard lets you monitor the efficiency of its da...

Data center efficiency is quite the hot topic these days, and companies are keen to emphasize their green credentials. Rather than releasing their stats on a quarterly basis like most other companies, Facebook has launched a new live dashboard showing the efficiency of its Oregon and North Carolina facilities, and the numbers speak for themselves.  Read More

Lockheed Martin and Reignwood Group plan to develop a 10 MW prototype OTEC pilot plant off...

Lockheed Martin has been getting its feet wet in the renewable energy game for some time. In the 1970s it helped build the world’s first successful floating Ocean Thermal Energy Conversion (OTEC) system that generated net power, and in 2009 it was awarded a contract to develop an OTEC pilot plant in Hawaii. That project has apparently been canceled but the company has now shifted its OTEC sights westward by teaming up with Hong Kong-based Reignwood Group to co-develop a pilot plant that will be built off the coast of southern China.  Read More

Close-up look of PNNL’s concentrating solar power system

Solar power holds the promise of clean, limitless energy, but it currently suffers from high costs and an inherent disadvantage of not working when the sun isn't shining. The Department of Energy's Pacific Northwest National Laboratory is taking a best-of-both-worlds approach by developing a hybrid solar/gas system that increases the efficiency and reduces the carbon footprint of natural gas power plants.  Read More

Splitterwerk Architects and engineering firm ARUP have unveiled the worlds first algae pow...

Splitterwerk Architects and engineering firm Arup have unveiled what is thought to be the world's first building to be powered partly by algae. Officially "unveiled" at the International Building Exhibition hosted in Hamburg, the design, dubbed the BIQ, has a "bio-adaptive" facade that is claimed to be a first for using algae within its glass louvers in order to generate energy, and provide shade, to a working building.  Read More

Researchers in Australia have developed the PowerWINDows, a new type of wind turbine that ...

Wind farms may be hitting the big time, but that hasn't deterred inventors and technologists from tinkering, or even reinventing, the turbine itself. In the past few months we've seen wind energy systems that use discs attached to hydraulics and even charged water droplets, but how about skyscrapers outfitted with rotating window panels? This is the idea behind the University of Wollongong's PowerWINDows concept, a modular wind turbine designed to have less of an impact on the surrounding environment.  Read More

Test flights of the Vienna University of Technology/EADS thermoelectric Energy Harvesting ...

A European project to develop self-powered sensors for monitoring aircraft integrity is off the ground, with EADS Innovation Works and Vienna University of Technology reporting that the first test flights of the thermoelectric Energy Harvesting Modules have been carried out on an Airbus aircraft.  Read More

The 630-MW London Array is now online and generating

Phase one of the London Array usurped the UK's Greater Gabbard to become the largest operational offshore wind farm in the world when its final turbine (its 175th) was commissioned on Saturday afternoon. Though construction was completed back in December, it is only now that all of the farm's turbines are supplying the UK's national grid with electrical power. The array has a total capacity of 630 MW.  Read More

Some of Fraunhofer's printed thermoelectric generators, wrapped around a sample component

Thermoelectric materials, putting it simply, are able to generate electricity via differences in temperature. If thermoelectric felt were used to make a jacket, for instance, it could generate a current using the temperature gradient between the warm interior and cold exterior of the garment. Like many such promising technologies, however, the cost of thermoelectrics is something of an issue ... although thanks to a new process developed at Germany’s Fraunhofer Institute for Material and Beam Technology, that might not be the case for much longer.  Read More

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