Critical Minerals, page-47

I think there are a few tailwinds in our favour...

July 18, 2022 Why a coming collapse of rutile supply will make the titanium feedstock a market to watch
Natural rutile is a high quality titanium feedstock, used in markets like pigment, aerospace and welding.It is also an extremely tight market, with a dearth of discoveries in recent years likely to see global supply fall off a virtual cliff from ~800,000tpa in 2017 to 450,000tpa in 2025 despite continued demand for the product.

Fires & Lithium batteries - not going over this ground, but from a safety perspective different storage other than Lithium would not only factor into this for anything indoors from an insurance, standards perspective.
Life of battery & depth of discharge.
Separate storage capacity vs power capacity - add larger tank.
I think the big one is that leasing the electrolyte which is where much of the cost of VRFBs would seem to be an attractive investment option. Because vanadium is an asset which has residual value For a multitude of applications. There is a risk that investing in a battery asset with a 10-20 year life now could see it displaced by a different battery type at much lower cost - the vanadium will still have significant value even if this happens.

And despite recent efforts from various entities trying to demonize it, ESG as key in company development is going to be increasingly important in order to build the mines & site the process facilities necessary to supply the energy storage build out.