The Power—and Beauty—of Solar Energy

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Utility power plants are many things—sprawling, expensive, often polluting—but one thing they are not is beautiful. Power plants are the engines of modern society, but we’d rather they stay out of the way.

The Ivanpah solar thermal plant is something different. Soon to be completed in California’s Mojave Desert, Ivanpah will provide nearly 400 megawatts of electricity. It will do so with the sun, but the not the way you might expect. Solar photovoltaic panels—the sort usually seen on rooftops—convert sunlight directly into electricity. That’s elegant, but limited—each panel produces only a little bit of power, and that power stops flowing as soon as the sun disappears.

The solar thermal technology behind Ivanpah—which is being jointly developed by BrightSource Energy, NRG Energy and Google—uses thousands of mirrors to reflect sunlight. That light is collected in one of Ivanpah’s three solar towers, where the intense heat transforms water into steam. That steam is piped to a turbine that generates electricity. It’s the same basic technology behind a coal or natural gas plant—only the sun provides the heat.

Ivanpah also has the advantage of producing electricity on a much smoother curve than solar PV, which means it can keep generating power later into the day. But Ivanpah, which should go fully online before the end of the year, has something else: sheer beauty.

More Photography from Time

4 comments
BobTregilus
BobTregilus

Desert and green-spaces are beautiful, as are distributed electricity and heat generation technologies that are close to the loads they serve and are owned by individuals, small and large business and industrial properties, farmers, and co-ops--all of whom are paid a fair price, that ensures a reasonable rate of return on their investment, to feed their energy into the electric grid. Now that's beautiful is everything the photos above are not. "The ubiquitous nature of renewable energy argues for a decentralist energy approach."

JimBullis
JimBullis

Ivanpah could also have been made highly productive agricultural land by sensible extension of irrigation from the existing systems that made the California central valley the most productive agricultural region in the world.

Would that have been better use of the land?  It is hard to know since the present project is so clouded in the obfuscation of subsidies and mandates.  

I like the appearance of growing fields with employed workers doing useful things.  And I think a different kind of electrical machine could be more important than the one shown above.  For a different idea, see: http://www.youtube.com/watch?v=97XQDD3w-cU

chokingkojak
chokingkojak

All that to boil water that might power a grand total of maybe 400,000 gaming desktops...

Then again, we're talking land you probably can't give away, anyway.  So why not, right? Cost/benefit is probably there.  

Beauty -- yeah, in a "Scaramanga" kind of way, I guess.  Beats the cuisinart-farm you cringe-through driving to Palm Springs...

gingerninja2
gingerninja2

@chokingkojak That is implying that a gaming desktop uses 1KW, which very few actually do. Even ones with a Power Supply Unit rated at 1000W will never actually reach that, even under load. Power needs to be generated, there will already be rolling blackouts, and I would rather it was generated by this than a coal fire station or an insanely expensive solar [pv] farm.