Tesla To Build Battery Backup For S Australia
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By Paul Homewood
h/t Philip Bratby
Tesla to build world’s largest lithium ion battery in Australia, reports the BBC.
An Australian state will install the world’s largest lithium ion battery in a “historic” deal with electric car firm Tesla and energy company Neoen.
The battery will protect South Australia from the kind of energy crisis which famously blacked out the state, Premier Jay Weatherill said.
Tesla boss Elon Musk confirmed a much-publicised promise to build it within 100 days, or do it for free.
The 100-megawatt (129 megawatt hour) battery should be ready this year.
“There is certainly some risk, because this will be largest battery installation in the world by a significant margin,” Mr Musk said in Adelaide on Friday.
He added that “the next biggest battery in the world is 30 megawatts”.
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The significant point here though is the capacity quoted:
100 MW or 129 MWh
In other words, enough to run for about 80 minutes.
Musk previously quoted a price of $250/KW, which works out at $25 million.
This only covers the cost of the batteries themselves. Including infrastructure and other costs,earlier estimates put the total cost as high as £125 million for 300 MW.
In the UK, the Capacity Market auction has yielded a price of £22.50/KW, on the face of it a much cheaper option. And standby capacity, such as CCGT, can provide back up power all day long, not just for an hour.

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July 7, 2017 at 06:42AM