It's a good candidate load for excess renewables that would otherwise be curtailed. Similar to how direct air carbon capture is sited where grid carbon intensity is low (Orca in Iceland, for example). Might need some Megapacks or other battery storage to arbitrage, but that can be built into the cost (capturing various incentives in the process). From a quick glance, everything can be shipped to processing sites in containers. Conveniently, brownfields are also ideal for redevelopment with renewables. Get enough solar and batteries on site to startup, and then continue deploying as you remediate and possibly build transmission to the closest substation.