From the article (which I suspect you didn't read): >CSP power plants create the steam needed to turn the turbine by using sunlight to heat molten salt. The mo

From the article (which I suspect you didn't read): >CSP power plants create the steam needed to turn the turbine by using sunlight to heat molten salt. The molten salt can also be stored in thermal storage tanks overnight where it can continue to generate steam and electricity, 24 hours a day if desired, a significant advantage over photovoltaic systems that stop producing energy with the sunset.