Energy storage systems signal arrival of ‘baseload’ renewables REneweconomy, By Giles Parkinson 21 November 2012 It has been widely thought that the arrival of cost-competitive rooftop solar PV systems would be the biggest game changer in the electricity market. But it may be that the emergence of affordable energy storage systems will have an even more profound impact.
There are predictions that the energy storage market is going to boom. One survey suggested that $30 billion will be spent on energy storage in the next decade in Australia alone. In the US, where $1 trillion is expected to be spent on electricity network infrastructure in the next 10 years, at least one fifth of that – or $200 billion – will be spent on energy storage.
The big question is who is going to benefit most from that investment – the customer, or the utility that delivers or sells the electricity. Or maybe even both. Most people are still trying to figure that out. Read more »
New Korean Lithium Ion Battery for EVs Charges in Under 1 Minute http://www.greenoptimistic.com/2012/08/21/korean-lithium-ion-carbonized-battery/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+TheGreenOptimistic+%28The+Green+Optimistic%29#.UDbvH8FlT4Y By Ovidiu Sandru August 21, 2012 A new lithium ion battery developed in Korea could make those long waiting times for an electric car to charge become history. A team of researchers at the Ulsan National Institute of Science and Technology (UNIST) claim they can build a battery that can charge in less than a minute, 30 to 120 times faster than a classic Li-Ion battery.
The bigger the battery (in volume), the longer it takes to charge it –
that’s the sad rule of thumb of batteries these days. One solution
would be to split the big battery into smaller piles – which has been
done so far, but it’s still not enough.
What the Korean researchers have done was to dip the cathode material
(lithium manganese oxide – LMO) in a solution containing graphite.
After carbonizing the graphite-soaked LMO, the graphite turned into a
dense network of conductive traces that ran throughout the cathode,
acting like blood vessels and allowing the entire battery to charge at
the same time, thus greatly speeding up the recharge process, without
the energy density or life cycle being affected.
The new battery needs to be packaged no differently than a normal
lithium ion battery, which makes the new technology easily adaptable
to already existing production lines. That, in turn, shouldn’t make
the new Korean LMO batteries much more expensive, but a hell lot
faster to charge.
It remains to be seen when and if this technology will actually become
mainstream, or at least having some big car manufacturer like Ford or
GM test it on the roads.
In-Depth: Germany’s 22 GW Solar Energy Record Clean Technica, MAY 31, 2012 BY THOMAS“…….Millions of Batteries in Buildings — Utopian? …… it is very easy to show that it’s just a matter of time until the combination of energy storage for homes with rooftop solar energy and/or small-wind becomes viable and even profitable.
Today, there are still about 6.4 million oil tanks in homes and buildings all over Germany storing energy in the form heating oil. Installing such a tank costs several thousand Euros today. So, why shouldn’t independent power producers start putting up new forms of energy storage in the same numbers as soon as it makes economic sense?
How would 6 million home storage systems change the energy system? Well, 6 million 10 kW / 25 kWh would mean a distributed storage system with 60 GW maximum output/input and 150 GWh of capacity. That’s already enough storage for 10% of the current daily consumption, more than enough to power all German households through the night. It’s also coming a long way to fill the gap between renewable baseload power (hydro and biomass) and variable sources like wind and solar.
That 10-kW/25-kWh battery is not fiction by the way. It’s quite similar to the battery pack that powers the Nissan Leaf right now, Just one battery that will soon reach production volumes in the hundreds of thousands as factories in Japan, Europe, and the US crank up production by 2013.
It’s true that the $15,000 price tag for the battery is too high right now. But, since all kinds of competitors are investing in this market, economics of scale, innovation and optimization will certainly reduce the cost of such batteries in the coming years. In the case of multi-kWh batteries, this development is a lot more obvious than what happened with the price for solar cells just 7 years ago. The fall of prices surprised many analysts back then. Today, prices for solar cells are 70%-80% cheaper than what they were in 2007, putting the cost of solar systems well below $2 per Watt in Germany…. .. https://mail.google.com/mail/u/0/?shva=1#inbox/137a6ed1432cd545
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