[mdorazio]

Your numbers are likely outdated. The Tesla grid battery installation in Australia was so profitable that Neoen is building more as fast as it can: https://reneweconomy.com.au/neoen-aims-for-big-batteries-in-...

[slyall]

The Australian battery isn't just making money from Arbitrage. It makes most of it from "Frequency control ancillary services (FCAS)".

"80-90% of battery revenues have been coming from FCAS and about 10-20% from energy trading."[1]

I would assume the amount of FCAS capacity needed will be fairly limited so the economics of additional batteries won't be as good.

[1] https://www.energy-storage.news/batteries-are-number-one-at-...