In Depth

  • The need for speed: Suniva’s rapid innovation model shows multiple tech paths to 20%-plus efficiency

    Chip Shots Blog | By Tom Cheyney - 11 October 2011, 04:41 | 2

    Suniva’s 170MW solar cell fab may not have the most ideal process flow, but it is a classic example of how much manufacturing capacity can be squeezed out of available floor space. Analogous to cramming 10 pounds of a certain something into a 5-pound bag, in the case of the company’s facility, three production lines have been inserted into an area originally designed for two. By running four shifts around the clock seven days a week (as it currently is) and fully using the double-tracked printing capability of some equipment—effectively turning those three lines into five—the fab can churn out a run rate of ~100,000 high-efficiency, low-cost monocrystalline-silicon cells per day, while boasting yields in the mid-90s.

  • Never mind “you know who”: CIGS thin film survivors Nanosolar, Stion keep going about their business

    Chip Shots Blog | By Tom Cheyney - 06 October 2011, 01:19 | 2

    Despite the muddy swirl of controversy surrounding that certain “you know who” CIGS company, many of the “survivors” in the most up-and-coming sector of the thin-film PV community just keep going about their business, driving up efficiencies, pushing down costs, closing deals, ramping production, and shipping products. Two Silicon Valley-based outfits, Nanosolar and Stion, have recently announced National Renewable Energy Lab-certified record conversion efficiencies and are both actively ramping production to feed their pipeline of orders. Here’s the latest from two of those left standing.

  • Is Merkel going mad?

    Editors' Blog | By Mark Osborne - 05 October 2011, 10:24

    Early warning signals were emitted from Germany yesterday that suggested that under-pressure Chancellor Angela Merkel could be losing the plot. It could, however, be just the start of another campaign to pre-warn the German public that the January 2012 feed-in tariff cuts could be deeper than many anticipate.

  • Deep-space PV: NASA’s Juno mission boldly takes solar power where no cells have been before

    Chip Shots Blog | By Tom Cheyney - 04 October 2011, 05:04

    Terrestrial solar power may be where the megawatt action is, but space-based photovoltaics provides its own intriguing kilowatt-scale technical challenges. In addition to the effects of extreme radiation on solar cells, one key aspect of using PV power in interplanetary space revolves around what the engineers and scientists call LILT, the acronym for “low intensity, low temperature” conditions. No mission has a more difficult LILT scenario than the engineering marvel known as Juno, which was launched from Cape Canaveral on Aug. 5 and is now about two months into its multiyear voyage to Jupiter. Equipped with the largest photovoltaic-panel array-wings of any planetary mission yet, the instrument-laden NASA probe will be the first spacecraft using PV power to venture to the outer planets of our solar system. Two of the Lockheed Martin engineers who played key roles in the design and construction of the array system and its integration into the spacecraft, as well as the head of Boeing’s Spectrolab unit, the group responsible for producing and laying out the strings of PV cells on the panels themselves, spoke with me recently about some of the unique aspects of the design, construction, and assembly of Juno’s solar array and its components.

  • Post-Solyndra placement: Local job fair attracts dozens of companies, hundreds of former employees

    Chip Shots Blog | By Tom Cheyney - 30 September 2011, 03:58 | 1

    When I drove up I-880 past the Solyndra buildings in Fremont earlier this week, it was the first time since the shutdown, bankruptcy filing, and subsequent public kerfuffle that I had been in the neighborhood. Stealing glances at the familiar facilities as I sped up the freeway, the nearly empty parking lots reminded me of the human toll and the plight of those thousand-odd employees who were summarily laid off without warning and without severance. But as I learned later that afternoon, many ex-Solyndrans have better prospects than they did a couple of weeks ago.

  • First Solar Mesa construction site photo blog: The next big PV production fab rises from the desert

    Chip Shots Blog | By Tom Cheyney - 23 September 2011, 22:51

    With its framework structure erect and the first walls attached, the shell of what will be one of the largest PV manufacturing plants in the US is quickly rising from the desert floor in Mesa, AZ, east of Phoenix. The freeway-close First Solar production center will join the company’s mothership factory complex in Perrysburg, OH, as a second domestic site once it comes online next year. During a visit to—and exciting Bobcat ride around—the project this week, I found out that construction activities are in full swing, as the accompanying photos attest.

  • The next big US$6 billion in thin-film manufacturing investments

    Guest Blog | By Finlay Colville - 22 September 2011, 11:14

    Forecasting thin-film investments and capacity expansions has never been an exact science. However, with the exception today of First Solar, there are few market-based arguments to support the immediate capacity expansion of most thin-film fabs presently struggling to match the downward crystalline silicon cost and price curve.

  • The shifting sands of solar trading

    Guest Blog | By Mark Bachman - 21 September 2011, 17:09

    We are abandoning our idea to selectively establish long-positions with certain names within the solar sector.  Investor sentiment is at an all-time low and looks to only sour more as we approach the third quarter earnings period.  We withdraw our previous idea to selectively buy a few names for a 2H11 trade into a solar “gold-rush” as our early signs of improving fundamentals appear to now be a mirage rather than an oasis.

  • High stakes CIGS: HelioVolt stays in the game with SK Group’s chaebol cash infusion

    Chip Shots Blog | By Tom Cheyney - 20 September 2011, 01:12

    As the stakes grow, B.J. “Billy” Stanbery knows how to keep his cards close to the vest. The chairman and cofounder of HelioVolt just saw the 10-year-old company’s new equity/lifeline investor, SK Group, push $50 million of chips into the CIGS thin-film PV venture’s pot—but he’s not willing to show his hand just yet. While thrilled to see a South Korean chaebol with its vast resources decide that “CIGS is the best horse to ride into the future” and that HelioVolt is the pony to run that track, he didn’t offer much in the way of detailed information about the race tactics and strategy. Stanbery, along with biz dev VP Iga Hallberg, spoke with me about the strategic investment and provided a few updates on recent progress made by the copper-indium-gallium-(di)selenide technology developer and panel manufacturer

  • Proof of disruption: Ampulse keeps the faith with heterojunction single-crystal silicon thin-film PV

    Chip Shots Blog | By Tom Cheyney - 16 September 2011, 20:49

    Although some PV industry watchers would say the term “disruptive technology” does not belong in the same sentence with “crystalline silicon,” several start-up companies and a host of national labs and research groups in the US and elsewhere would beg to differ. In the most recent Department of Energy SunShot Initiative announcements, corporate and institutional participants pursuing the general topic area of thin crystalline silicon received millions in awards to explore various avenues of developing and manufacturing seriously skinny, often nanoscale wafers or cells out of the solar sector’s primary incumbent material. DOE won’t be cutting Ampulse one of those SunShot checks, but the venture-backed, national lab-connected start-up thinks that its technology, which facilitates the “on-the-cheap” fabrication of c-Si thin-film heteroepitaxial cells on flexible metal substrate “foils,” has a legitimate shot at upending the solar status quo.

Publications

  • Photovoltaics International 27th Edition

    Now that the PV industry has unquestionably entered a new growth phase, all eyes are on which technologies will win through into the mainstream of PV manufacturing. PERC, n-type, p-type bifacial, heterojunction – all have become familiar terms in the ever-growing constellation of solar cell technologies. The question is which will offer manufacturers what they are looking for in improving efficiencies and cutting costs.

  • Manufacturing The Solar Future: The 2014 Production Annual

    Although the past few years have proved extremely testing for PV equipment manufacturers, falling module prices have driven solar end-market demand to previously unseen levels. That demand is now starting to be felt by manufacturers, to the extent that leading companies are starting to talk about serious capacity expansions later this year and into 2015. This means that the next 12 months will be a critical period if companies throughout the supply chain are to take full advantage of the PV industry’s next growth phase.

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Acknowledgements

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