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Energy storage using old car batteries
BALANCING THE GRID
Can and should we repurpose EV batteries?
In four of five years, the batteries in the roughly one and a quarter million EVs currently on the road, are going to start to wane. EV owners will either replace them, or replace the car entirely. This means we will have a lot of used batteries. Batteries with plenty of life left, but which are no longer suitable for EVs. What to do?
One possible is repurposing them to serve as grid-connected energy storage. Storage is valuable to the grid for many reasons, including its ability to smooth out fluctuations in supply, allowing for ore integration of variable renewable energy.
Research by BNEF suggests that by 2018, these second life batteries could cost as little as $49 per usable kWh to repurpose. If you compare that to the current new stationary battery price today of around $300 per kWh, they will further support the economics of both renewable energy and electric vehicles, accelerating the uptake of both. What are the challenges?
Vattenfall, BMW and Bosch, are testing electricity storage with repurposed EV batteries in Hamburg.
2,600 used battery modules from over 100 electric vehicles are being merged to form a large electricity storage facility in Hamburg. The stored energy is available within seconds and can help to keep the electricity grid stable. The batteries can't be that old because the BMW i3 was launched in 2011. But still, it's a first pilot.
Cordelia Thierlitz, General Manager Bosch Energy Storage Solutions: "Electricity storage systems are a key success factor for the new energy landscape."
Nissan and Eaton make home energy storage reliable and affordable to everyone with 'xStorage'. Providing a sustainable 'second life' for Nissan's electric vehicle (EV) batteries after their first life in cars is over.
As they say: The xStorage solution will give consumers the power to control how and when they use energy in their own homes. The system will provide to end-users completely ready to use, with all required elements including cabling and installation by a certified professional, at a starting price of € 4000 ($ 3,200) for 4.2 KWh nominal.
The system also provides a smartphone connectivity to allow consumers to flick between energy sources from a distance. So you can earn money, selling your energy to the grid when prices are high.
Nissan Motors launched the Nissan Leaf all-electric car in December 2010. As of December 2015, the Leaf is the world's all-time best selling highway-capable plug-in electric car with over 200,000 units sold since its introduction.
They are spinning, beautiful and seems to be highly efficient. V3Solar: "These spinning solar cells are generating 20 times more green electricity compared with traditional Panels."
The conical shapes allow maximum exposure to sunlight at any angle during any time of the year. Plus, the design solves the heat issue normally created by concentrated sunlight. photovoltaic cells will get less hot because of the spinning.
Investing in renewables is increasingly interesting. The rise of renewables seems unstoppable. According to 'the Guardian' In 2015, almost 50% of all energy was already renewable power. Worldwide.
And figures are growing. Investments reached nearly $ 286 billion, moren than six times more than in 2004. And for the first time, more than half of all added power generation capacity came from renewables.
Expectations regarding the growth are mentioned almost every day now:
The value of solar energy was $ 114 billion in 2015
Annually the capacity increases from 51 gigawatt to 77 GW by 2020
The same for wind power. In 2015 the global market was $ 110 billion and 63 GW installed
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