Israel-based Megalim Solar Power is building the tallest solar tower in the world at Ashalim, in the Negev desert. 50,000 computer-controlled mirrors will focus solar rays onto the 787-foot tower producing, when the project is complete, 121 megawatts, to cover 1% of Israel’s electricity needs.

http://www.jewishpress.com/news/israel-puts-desert-sun-to-serious-use-with-worlds-tallest-solar-power-tower-video/2016/02/17/