3 ms·
> Li storage is currently only really used for grid stability style installations at the gird-scale level (ie, as an alternative to gas-peaker plants). Yeah,
by cinquemb 5y ago
> Li storage is currently only really used for grid stability style installations at the gird-scale level (ie, as an alternative to gas-peaker plants).
Yeah, in the latest Lazard's:
"Lithium-ion chemistries continue to be the dominant storage technology for short-duration applications (i.e., 1 – 4 hours),"
The last one I talked about on hn with someone else last year [1] was from 2018 [2] and the costs in this once for PV and PV + storage seem in line with that (or more expensive in the new report at the high end, but this new report only really covers PV and not anything else like the 2018 one, but at least this one really breaks down the storage).
Their nuclear costs then were $112-$189, and their solar thermal tower + storage were $98-$181 (I'm assuming 2021 costs would be lower here from all the low cost stuff that has came online since, but haven't seen a high level report yet).
Baseload (which i think nuclear really falls and I think what they would consider BTM? but maybe theres a whole sale market for it? hard to really tell with their storage definition capping out at 4 hours) still seems far away:
"The economic proposition of C&I behind-the-meter (“BTM”) projects remains challenged without subsidies", ranging from $214-$292 for C&I (no storage), $392-$507 (PV + storage), and $489-$662 for residential (PV + storage))
> This excludes the (huge) further price reductions in PV noted in the linked article.
Not sure we can consider panel costs (Perovskite, Bi-facial Panels, Doped Polysilicon and Bigger Wafers, Better Cells) speaking for storage costs, and the article really seems to be addressing panel costs. Though improvements in panels are always great.
[1] https://news.ycombinator.com/item?id=23588691 https://news.ycombinator.com/item?id=23588691
[2] https://www.lazard.com/media/450784/lazards-levelized-cost-of-energy-version-120-vfinal.pdf https://www.lazard.com/media/450784/lazards-levelized-cost-o...
- nl 5y agoI think long range UHV transmission plus wind/PV Solar is the real challenge for other baseload technologies. Projects like the proposed 4500km Australia-SG link[1] mean you get a lot of flexibility to build supply in places different to where the demand is. That solves a lot of the baseload issues. [1] https://en.wikipedia.org/wiki/Australia%E2%80%93ASEAN_Power_Link https://en.wikipedia.org/wiki/Australia%E2%80%93ASEAN_Power_...
- cinquemb 5y ago> I think long range UHV transmission plus wind/PV Solar is the real challenge for other baseload technologies. Yeah, would like to see more improvements there. Running up to fundamental limits with that though. Perhaps large batteries can be charged and moved elsewhere, but that seems more feasble with molten salt tanks now (but would become more feasble when 4+ hour storage for chemical batteries gets cheaper). > Australia-SG link Yeah, really hard to look at prospective projects in terms of lcoe (maybe we'll get more insight with any bids for providing via that link in the future) so we'll really have to see and I don't see anything about MW or MWh costs listed there (just upfront) so i'm assuming only day time baseload.