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Archive for the ‘Luz’ Category

We were there, in the Negev Desert on Thursday afternoon, June 12th 2008, when Luz 2
inaugurated its first solar energy generating plant.

Two of the JCI team, Michael Kagan and David Miron Wapner had a hand in setting up the company two years ago ago, so it was a proud day for them. For me it was somewhere between science fiction and biblical prophecy.

Luz2 has figured out how to produce solar energy more efficiently and cheaply than anyone else. The technology is dazzling. (Sorry!) In a tract of the Negev near Dimona, 1641 heliostats, 7 metre square mirrors, are geometrically arrayed around a 60 Metre high tower. Perched on the tower is a 15 meter tall boiler, containing densely packed silvered pipes. The mirrors are programmed to track the movements of the blazing desert sun so as to concentrate reflected sunlight precisely on designated spots on the boiler surface. This solar targeted energy heats water in the pipes to temperatures of over 500 C, generating steam that drives turbines that produces electricity. If you want a fuller description than my rudimentary science can provide, see Luz2’s site.

Inside the hospitality marquee we ate canapes on square plates and saw videotaped messages from venture capitalists, investment banks and customers who are backing the project. The Pacific Gas and Electicity Company has just signed a deal with Luz for a generating plant in the Mojave desert that will be the biggest solar energy source in the world, roughly 50 times bigger than the baby in the Negev. The company’s vision is huge. They aim to build hundreds of these things all around the world over the coming twelve years, producing electricity that can compete with and eventually undercut coal and gas powered plants. This is technology that can produce affordable, efficient solar power, and lots of it. It offers hope that we can switch to renewable sources of energy and avert dangerous climate change in the coming decades.

Arnold Goldman, Luz’s visionary founder observed in his speech that the site of the plant is called “Rotem”, a type of bush in Hebrew. Goldman remarked that “siach” the general name for a bush means conversation, and that the intense conversations that led to the development of this technology in a certain sense inhered in the physical plant of the mirrors and boiler themselves. In a remarkable book, “Moving Jewish Thought to the Centre of Modern Science”, Goldman develops a Kabbalistic theory of language and explains how it underlies the work of Luz. His comments about the Rotem bush were the only hints at such thinking that Goldman gave to this corporate audience.

After the speeches, the public address system played “Here comes the Sun”, by the Beatles. I thought of the Biblical verse, …”to you who fear my Name, the sun of righteousness shall rise with healing on its wings.” (Malachi 3:20.)

When I got home I told my technology-mad children where I’d been and what I’d seen. I suspect that one day I will be telling my grandchildren.

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