BloombergNEF says $145-167 per MWh.
> If you do that calculation at the global level, we evaluate the LCOE for recently financed projects is at US$150/MWh including charging costs. That’s our benchmark. We have a range around that benchmark which goes from US$115/MWh in China.
https://www.energy-storage.news/behind-the-numbers-the-rapid...
So the critical question is: how long will grids connected to renewables need reserve? 4 hours doesn't seem like much but I'm not sure the best way to find this info. Edit: from a 30s google search, 4 hours is only good for <80% renewables in Aus. [0] https://reneweconomy.com.au/much-storage-back-high-renewable...
And in the mean time gas peaker plants provide a viable, cheap and safe compromise without needing nuclear!
> We found in some cases the battery requirement becomes very large relative to the load, at greater than 20 hours. In these cases, it was concluded that additional gas peaking capacity would be more economic (and biogas was used when the emission constraint did not allow for natural gas).
This is the original report: https://www.energynetworks.com.au/resources/reports/electric... and these graphs are on page 98.
Biogas use isn't practical to replace existing gas supply.
I honestly really wish renewables + batteries could take over but it's too early. Aus has heaps of Uranium, is geologically stable, has strong regulating authorities and geopolitically secure. The perfect spot for low-emissions Nuclear which is practical and possible now in all respects except for politically.
No they're not, as already pointed out in response to your other comments (e.g. https://news.ycombinator.com/item?id=32092280), yet you continue to cite them as an authority.
Not to mention the other comments that refute those numbers using the same paper - projects would be closer to ~$100/KWh when storage is taken into account, as shown graphed in the paper itself.