24/7 Solar?

The recently completed Crescent Dunes concentrating solar project in Nevada is the first plant with the ability to store energy for more than 10 hours. It's also the first project to use heliostats to directly heat molten salt, which is used to produced steam to run turbines, producing on-demand electricity after the sun sets.

I'm always skeptical of the possibility of scaling projects like these. According to this article about Crescent Dunes, the price of concentrating solar is down to around 10 or 12 cents per KW-h, which is theoretically cheaper than a PV project using multiple batteries to achieve the same 10-hour storage. Utility-scale PV is still significantly cheaper, at around 5 cents per KW-h for a typical PPA.