Grid realities cancel out some of wind power's carbon savings

(Phys.org) -- Wind energy lowers carbon emissions, but adding turbines to the current grid system does not eliminate emissions proportionally, according to a report by researchers at the Argonne National Laboratory.

Hitachi unveils motor without 'rare earths'

Japanese high-tech firm Hitachi Wednesday unveiled an electric motor that does not use "rare earths", aiming to cut costs and reduce dependence on imports of the scarce minerals from China.

Clean energy could lead to scarce materials

As the world moves toward greater use of low-carbon and zero-carbon energy sources, a possible bottleneck looms, according to a new MIT study: the supply of certain metals needed for key clean-energy technologies.

New metal alloy electrode designed for plus-sized ions

(PhysOrg.com) -- Storing energy from wind farms and releasing that electricity on demand requires high-capacity, low-cost batteries; sodium-ion batteries could be part of the answer now, thanks to fundamental insights garnered ...

Iberdrola builds huge wind farm in US

Spanish energy giant Iberdrola has completed one of the world's biggest wind farms in the US state of Ohio, which will produce more than 300 megawatts of power, it said on Monday.

Liquid battery could charge green energy

Engineering professor Donald Sadoway on Thursday used an old-school chalk board at the prestigious TED gathering to write the formula for a liquid battery that could one day cut the need for new power plants.

Magnetic breakthrough may have significant pull

(PhysOrg.com) -- Northeastern University researchers have designed a super-strong magnetic material that may revolutionize the production of magnets found in computers, mobile phones, electric cars and wind-powered generators.

With changes, the grid can take it

Over the next two decades, the U.S. electric grid will face unprecedented technological challenges stemming from the growth of distributed and intermittent new energy sources such as solar and wind power, as well as an expected ...

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