Yes, it seems obvious that anyone using Molten-salt (in...

Yes, it seems obvious that anyone using Molten-salt (in commercial use already) should use Silicon instead. 

On a related note,I saw an article today, Projecting the Future Levelized Cost of Electricity Storage Technologies, from https://www.cell.com/joule/fulltext/S2542-4351(18)30583-X

I got the article via a link from *, which wrote the following:

"A new study has compared the projected lifetime costs for nine energy storage technologies – and finds lithium-ion will annihilate the competition in most applications.

Stationary storage systems are big batteries often designed to store excess power from the power grid, including from renewable sources, for use during expensive peak demand periods. It also includes residential and industrial ‘behind the meter’ systems.

While the EV space is firmly dominated by lithium-ion, stationary storage is considered more diverse – it also includes things like pumped hydro, vanadium flow batteries (VRFBs), and hydrogen energy storage, amongst others.

But according to the London-based writers of ‘Projecting the Future Levelized Cost of Electricity Storage Technologies’, specialised technologies are unlikely to compete with lithium ion on cost, apart from in long discharge applications.

When it comes to alternatives, “performance advantages do not outweigh the pace of lithium-ion cost reductions,” the authors say. In fact, they reckon investments in alternative technologies could be pointless unless significant performance improvements are made."

Interestingly, molten salt was not included in the 9 technologies, the authors obviously would be aware of it but chose not to include it - nor was silicon included, for the obvious reason I assume that there is no performance and cost data publicly available as yet, nor will there be until 14D publishes results from trials I guess. I will try to post a table from the report.