For generating electricity, in dollar terms the Levelized Cost Of Electricity (LCOE) of PV is definitely much less than CSP. I don't know the current numbers, t

For generating electricity, in dollar terms the Levelized Cost Of Electricity (LCOE) of PV is definitely much less than CSP. I don't know the current numbers, though. However, it is not clear to me if in terms of impact on environment, which technology is better. Even more unclear is if it makes sense (in terms of environmental impact) to scale either of the technologies to double digit percentage of the world's electricity requirements. However, when I last did the calculations, passive CSP is much better at hot water generation for industrial applications - leather/textile factories need a lot of hot water or steam. CSP can at least cheaply pre-heat if not fully heat or boil the water.