Citaat:
Oorspronkelijk geplaatst door Bach
Vanadium redox batterijen staan niet in het lijstje. Eigenaardig. Dat is misschien wel de onmiddellijke toekomst. Minder voor huishoudelijk gebruik echter.
In China wordt nu een 200 mw batterij gebouwd van dit tipe. Geen toekomstmuziek maar realiteit. Verschillende voordelen ten opzichte van lithium.
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Die bestaan toch al heel lang, (veel) te lage energie-inhoud vind ik via wikipedia:
https://en.wikipedia.org/wiki/Vanadi...energy_density
Li-ion krijgt de voorkeur. (ondanks die **Chinese 200 MW)
De techniek is alleszins hoopvol voor de toekomst (ook qua prijs)
**
Citaat:
https://electrek.co/2017/12/21/world...-rongke-power/
World’s largest battery: 200MW/800MWh vanadium flow battery – site work ongoing
John Fitzgerald Weaver - Dec. 21st 2017
The world's #biggest #battery will be a 800MWh #VRB #flow battery based in #Dalian by #Rongke. From our recent visit to Dalian. Ground work has begun. Much of the VRB constructed and waiting in their factory. Latest estimate is June 2019. They advise will be open to all visitors.
Electrek’s Take
Flow batteries are getting my attention. We recently covered residential flow batteries making a big move across Australia. The company, Redflow, saw their first piece of hardware built in their new Thai factory in the past two weeks.
Right now, it seems tech savvy people always bring up flow batteries when talking about large-scale grid applications. No degradation over 20 years is a pretty impressive feat from the perspective of an electricity utility or a financial analyst. 15,000 cycles – one per day – would be 41 years of usage. And from what I’ve read, you can repair the pieces that break.
I’ve also read that vanadium flow batteries already cost well below $500/kWh – and that some hope to see $150/kWh by 2020. That’s a competitive product. And if utilities like it better because it scales easier and has a longer lifetime, renewables will benefit.
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Het gaat wel niet de (voorlopig) grootste worden Tesla & Co gaan eventueel tot 1100 MWh...
Citaat:
https://electrek.co/2018/06/29/tesla...attery-system/
Today, we learn that Tesla is working with PG&E on a massive battery system with a capacity of “up to 1.1 GWh” in California.
Pacific Gas and Electric Company (PG&E), one of the largest electric energy companies in the United States covering nearly 16 million people in Northern and Central California, submitted 4 new energy storage projects to the California Public Utilities Commission (CPUC) for approval today.
Three are third-party owned projects to be connected to PG&E’s grid, but the fourth one is “a proposed utility-owned 182.5 MW lithium-ion battery energy storage system (BESS) located within PG&E’s Moss Landing substation.”
Tesla would be providing the battery packs for the giant project, which would be able to output 182.5 MW of power for 4 hours, which represents 730 MWh of energy capacity or over 3,000 Tesla Powerpack 2s.
PG&E also has the option to increase the capacity to 6 hours for a total of 1.1 GWh.
Earlier this month, Tesla CTO JB Straubel announced that the company has deployed over 1 GWh of energy storage – a capacity that he says is “undeniably making an impact.”
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