How Mirrors Could Solve our Energy Problem

From what I remember there were more or less 3 reasons I remember as to why this isn't used as much compared to PV, despite it being able to fix one of the most important problems with renewables: intermittency.

These problems are:
1) Cost: CSP costs around 3-4 times what PV costs, so that immediately isn't really great. If we can get storage costs low enough, PV+storage is also more interesting.
2) Geographical limitation: You can't just place these plants everywhere, the efficiency reduces a lot depending on the available sunlight. And ofcourse you need space and lots of it. With PV you can if need be place it in smaller units in a same location to avoid obstacles, elevation differences etc. aren't that much of a problem, with CSP this can be more of a problem. Another problem here is that CSP isn't usually located close to the main energy users, so you possibly need to install connection wires etc too. With PV you can place them on the roofs, car parks, nearby fields, ... limiting these kind of connection costs.
3) Water usage: These mirrors need to be kept clean. This often requires water use to do so. The problem is that these systems usually are in more arid places where water is more valuable. Ofcourse you might have ways to get around this, but they will usually be less effective or more costly. This was for example one of the controversies with CSP plants in Morocco that were subsidies by the EU, I believe.

Does CSP has a place in the grid mix? Yes, I think they definitely will play a role. Are they likely to become one of the main sources/compete with PV? Doubtfull. They might be usefull for energy intensive industries that could possibly be build around them and then either you use their storage to keep these industries going 24/7 or it is used to help balance the grid in the evening/at night.

If you were to ignore things like costs, political stability (for example northern Africa region), ... , CSP would likely be the best source to get us fully renewable. in fact they are probably one of the only renewable sources that could completely on its own get us to 100% renewable; No battery storage, no PV, wind, hydro, ... needed, just CSP. But it would be expensive and you'd need to use very long connections and the losses that go with it.