Here is the latest report on the progress of the Ashalim project – building the world’s tallest solar tower, deep in the Negev desert (see here). When complete in 2018 it will generate 310 megawatts of power – enough for 130,000 households, or roughly 5% of Israel’s population.
http://www.timesofisrael.com/israel-harnessing-sunshine-with-worlds-tallest-solar-tower/