Re: 1GW (sic) Battery Energy Storage Systems

On 24/11/2024 11:40, Martin Brown wrote:

There is a startup company in the UK called NatPower (no relation to the real National Power PLC aka NPower) claiming to have over 25 years of experience in BESS. They are proposing 1GW (sic) BESS in all sorts of brown and green field UK sites. They have no track record that I can find. Does anyone here know of any real international project(s) that they have actually done and more importantly *delivered*?
(their own PR or its uncritical repetition in the press doesn't count)
 Their website is very slick indeed but I suspect that beauty is only skin deep. I am interesting in evidence of substance not PR fluff.
 Can someone provide me with some rough estimates of what a 1GW class energy storage system ought to look like in terms of layout and the number of container sized units and space required?
(or at least sanity check my guesstimate below)
 Assuming that they mean 1GWh I reckon it will be about 2000T of Lithium batteries. If each module is storage container sized and can contain 20m^2 of batteries I reckon it is about 100 units (twice that if I have over estimated how much battery you can safely fit in a module). I haven't been able to find any manufacturers specifications for them.
 At what point in the scale up from 50MW storage units (which are quite common in the UK) to these new Gigaparks do things get interesting?
 It also strikes me that if these storage battery systems have similar characteristics to the Lithium ion cells in my laptop they will require complete replacement every 5 or so years if they get cycled daily.
 And I presume each module needs integrated fire suppression systems to handle thermal runaway problems. Lithium fires being notoriously difficult for ordinary fire fighting methods to put out.
 Also what additional measures will it need to tie into 400kV supergrid?
 How do you even do that at 1GW using semiconductor components?
 It can obviously be done since some big interconnectors are DC but how much does that sort of hefty high voltage infrastructure cost?

So... 100MMW system in Alderley, Hampshire. My neck of the woods. No such place that I know of, nor does Google Maps. They say' will update in August 2024'....

 

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