Idealab switches on solar tower plant in Lancaster, CA

topic posted Mon, August 10, 2009 - 7:34 AM by  Nolen
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Idealab rebounds with recent focus on clean technology

Los Angeles Times
By Alana Semuels
August 5, 2009

The hundreds of glass mirrors break the dusty field in Lancaster, a sea of silver in a landscape of brown.

When switched on for the first time today at an opening gala with investors, local politicians and others, they'll make up the first operational solar tower energy facility in the United States.

The strength of the small field of mirrors is surprising, but what might be more surprising is the technology's source. It was established by Pasadena incubator Idealab, a 1996 creation of entrepreneur Bill Gross. Gross, whom Time magazine once called the "man with a billion dollar brain," generated some big hits with GoTo.com, Internet Brands Inc. and Cooking.com, along with such misses as Eve.com and EToys.

Idealab, which has counted director Steven Spielberg and actor Michael Douglas among its backers, has been spreading its reach to the green technology sector.

In the last three years, it has created RayTracker Inc., a solar tracking solution for photovoltaic systems; Distributed World Power, which designs solar systems for developing countries; Aptera Motors, which designs fuel-efficient cars; and ESolar.

It is jumping into the environmental market as venture capital is flowing more into clean-tech companies. Investment in such firms shot up 73% in the second quarter from the previous quarter, according to Ernst & Young, and is expected to continue growing.

The percentage of clean-tech investments to total investor funding has increased to double digits over the last three years, said Doug Regnier, an Ernst & Young partner leading its Pacific Southwest clean-tech consulting business.

Energy "is probably the biggest opportunity of the century," Gross said. "The world's energy needs and the demand to make that clean energy is going to be a challenge and an opportunity for smart entrepreneurs."

Though focused on computer software for two decades, Gross said he returned to his passion for solar energy in 2000 as power shortages loomed. The Caltech graduate bought the restaurant next door to Idealab and turned it into a machine shop, eventually running solar experiments on the roof. Idealab's first clean-tech firm, Energy Innovations, was created in 2001 to convert solar applications for commercial use. Idealab hired 50 people in the next three years to work on such ideas as a fuel-saving car and a portable solar device for developing countries.

The concept for ESolar came about as Idealab engineers started thinking about ways to provide cost-efficient solar energy for utilities and realized that most solar panels in commercial use were too big to be cost-efficient.

"We tried to figure out the angle we could exploit where we can zig where other people zag," Gross said.

They came up with what Gross calls an unorthodox plan: "Go small." Rather than make giant solar panels, they sized them at one square meter. That made the panels easier to install, putting them together like Legos rather than erecting a giant solar facility.

The smaller mirrors also are able to be aimed more quickly at the boiler target, said Michael Liebelson, head of the low-carbon development group at NRG Energy Inc., which is building plants using ESolar technology. Idealab's software expertise helped it devise a way to manipulate the mirrors for better precision, he said.

"ESolar has one of the most, if not the most, innovative solar thermal technologies out there," Liebelson said.

The ESolar plant in Lancaster went up on the barren desert site in 18 months, said Lancaster Mayor R. Rex Parris. He's trying to make his city a center for alternative energy. "For an alternative energy to go on the line in 18 months, it's literally unheard of," he said.

ESolar has lined up more than $130 million in investments from such firms as NRG, ACME Group, Google's philanthropic arm and Oak Investment Partners.

For Gross, ESolar's effort is a sign that the interest in solar is growing -- and that Idealab still has its knack for building companies and persuading venture capitalists to invest, even in a tough economy.

And it helps Gross regain a foothold after mutual fund giant T. Rowe Price and others sued him in 2002, alleging self-dealing and fraud, and shareholders bailed him out in 2006 after he failed to repay a $50-million personal loan.

"The biggest factor is when you've demonstrated that you can take a company from revenue to profit to successful exit," he said. "That makes an investor comfortable that you can do it again."

alana.semuels@latimes.com

Slide Show of ESolar plant:
www.grist.org/article/200...olars-rescue
posted by:
Nolen
Los Angeles
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  • Wet Blanket Larry's stoopid question of the day. I've read somewhere (maybe even on this board) that with our present technology, it's not economically feasible to have more than 10% of the total power in the grid coming from solar thermal--or from wind for that matter. Why? Because the power output from these sources fluctuates too much.

    Yes, there are energy storage options--like pumping water into towers--for the times when output exceeds demand. But the energy storage options are supposed to be considerably more expensive than the power generation itself.

    Glenn, you know a lot more about this than I do. Is that 10% figure accurate?
    • Hm. The concept is sound, but I don't know off the top of my head whether or not 10% is the correct figure . . . it might be, but it might not be.

      I do know that my employer did a study on this, and a report is available here: www.nyiso.com/public/webd...11202008.pdf . Just as they do not necessarily endorse what I say, I do not necessarily endorse what they say, but I say that only because I haven't read the report :-) That said, I can say that I know personally and endorse at least half of the people listed as the authors.

      A brief glimpse looks like our target here in New York is to get to 25% wind power.
      • Unsu...
         
        hi all...

        so one unreferenced source says the maximum contribution from solar is 10%... nice of nature to be so whole...??

        A tutor of mine once warned me of round figures... they are the guesstimates of guesstimates .. made by committees not data for nature never uses rounding or truncating...

        that said solar, or rather the sun is the source of all energy: all biomass, hydro and even wind are nothingmore than transformations of solar, even fosil fuels are littlemore than ancient solar storage systems, so clearly solar curently contibutes more than 10% of our energy use.

        Similarly the capture and use of solar with mirrors and towers not only provides a perpetual renewable source but captures solar energy that might otherwise be reflected back into the atmosphere to interact with greenhouse gasses and thus contribute to the global warming.

        furthermore solar towers further offer a potential to increase the rate of rising moist updrafts, a source of highly reflective low altitude clouds, clouds that increase the amount of solar radiation being reflected back into space...

        If all these benefits are factored in we see solar towers as having a potential to provide both power and climate change mitigation, unlike fossil fuels or even bio fuels which provide energy but also contribute to CO2 accumulation...

        I am though biased.... heres a video I produced a few months ago with imagesI drew a year earlier

        www.youtube.com/watch

        regards

        GM23
        • Thanks, Glenn.

          Greenman, ALL measurement-based quantities have uncertainty associated with them. Some of the relative uncertainties are f***ing huge; others are quite small. About that 10% figure that I had seen somewhere. Actually, it was 5 - 10%. In passing on that particular urban legend, I was trying to be optimistic. That particular urban legend may or may not be accurate.
          • Unsu...
             
            hi larry

            didn't quite read your post as optimistic and you do state >>the relative uncertainties are f***ing huge; others are quite small. <<

            also appart from taking measurements how else does one get a quantitive value? re your statement >>ALL measurement-based quantities have uncertainty associated with them<<... and as for the uncertainties.. you cant make generalisations since these are specific.

            both statements are rather like the 10% pretty much nonsense larry...

            sorry .. if just pointing out the obvious causes offence,

            regards

            gm23
            • Rather than let this get out of hand, may I suggest that we accept that:
              - There is a percentage
              - It is a minority
              - The exact number is unimportant because we are not grid operators here.
              • B
                B
                offline 121
                Spain uses solar now and it supplies more than 10% of one part of the country. However it is not solar like we think solar. They generate steam and store it so that the turbines run 24 hours and it operates lie a conventional power plant. I believe that the worry about power supply is with photovoltaic conversion which is not predictable. The area of Spain has about 350 sunny days a year and the stored heat can be used to generate power for a few days giving plenty of time to brin other power generation online if there is a sunny day shortage.
                • That's awesome. I'd heard of another project similar to that with the Arizona dessert in mind. Having a few days to bring other resources on line is fantastic, because some larger power plants do need a pretty substantial lead time. The fossil-fueled plants that come on the most quickly (gas turbines) also tend to be the least efficient (with a noted exception for combined-cycle plants) and are also very particular about fuel (requiring either natural gas or jet fuel).

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