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simondotau | on: Australian energy retailers must provide three hours of free daytime electricity
At current battery project prices, matching Snowy 2.0’s roughly 350 GWh of energy storage capacity with Tesla Megapacks would cost around AUD $218 billion [0] and require Tesla’s entire global Megapack production capacity redirected to a single client for five years.

$15 billion is far more than Snowy 2.0 should have cost. But it remains substantially cheaper than any lithium-ion battery build for bulk storage. Storage on this scale is essential in a post-coal electricity grid, and batteries are not (yet) plausible substitutes for bulk storage.

[0] This assumes linear scaling. In reality, placing an order like this would grossly distort supply and demand on many levels. Thus the cost would ultimately be superlinear.

ZeroGravitas | parent | next
Snowy 2.0 has major limitations on what it can supply, the headline number is very misleading.

And the comparison shouldn't be to batteries alone, but solar/wind and batteries. The former can be used directly and fill the batteries repeatedly on a timeline that is predictable.

It provides no extra value for the electricity to be stored long term if for the same money you can generate and store it short term.

Article on the various restrictions on Snowy 2.0:

https://theconversation.com/snowy-2-0-cost-blowouts-might-be...

angry_octet | root | parent
Yes Snowy 2.0 just won't have enough water for many of the years in out future.
fragmede | parent
Yeah the battery storage story has to acknowledge the fact that global production capacity simply isn't actually high enough to deliver that many batteries so we need alternative solutions to the problem as well.