So you guys are saying this is nothing groundbreakign or exciting? Just asking I know little about this stuff.
First, it would be of benefit for you to look up Ivanpah. You can start with the Wiki on it:
The idea of using heliostats to concentrate solar energy at a receptor, be it a molten salt or some other medium to spin a steam turbine, isn't new. The idea that you can use the heat in a process heat application is a slightly different twist on it, but still runs into the inherent issue of intermittency associated with solar. Steel mills, concrete factories...etc Industrial operations that utilize process heat run constantly. Becoming weather-dependant isn't a viable business model, even if it makes the process heat free. And it wouldn't be as easy as using it as a fuel saving device for existing applications because of the fundamental design differences in how one harnesses CSP versus a traditional fossil-powered furnace.
There have been a number of different ideas floating around as to how to replace fossil fuels in industrial applications that utilize a furnace, such as making steel. One that comes closest to maintaining existing structures and models would be the most likely to succeed, such as using hydrogen: https://www.sei.org/publications/hydrogen-steelmaking/
There's a lot of hype about VRE and fitting it into roles where it is ill-equipped. Separating these wild fantasies from what's real and obtainable within a reasonable timeframe can be frustrating when you are bombarded with propaganda promising everything from solar-based energy independence in Winnipeg to wind turbines providing baseload if we only ran cables the entire length of the Atlantic