Design Article

Comment


Bob Lacovara

12/16/2011 1:54 PM EST

DrWattsOn, first off, your comment isn't off-topic, to my mind. Secondly, don't ...

More...



DrWattsOn

12/15/2011 7:44 PM EST

I appeal that my following comments be considered as ON topic. I'm a ...

More...

Solyndra: Its technology and why it failed

Don Scansen

11/23/2011 12:10 PM EST

by Don Scansen, IP Research Group

Solar-panel manufacturer Solyndra was a darling of clean tech but filed for bankruptcy. Department of Energy loan guarantees of $535M sparked an investigation. No wrongdoing has yet been uncovered despite a huge waste of government money. Lower production costs in China have been singled out as the critical factor in Solyndra's demise. Will this story become a parable for America's waning competitiveness?

With its clever combination of solar and cylinder, the "O" with rays striking it, and the tag line, "The new shape of solar," marketing for Solyndra's unique tubular module design was at the top of the class. It is reminiscent of making oats cereal in small toroids, the shape of the letter O. We need to determine if there was more to Solyndra than just good public relations.


Figure 1: Solyndra's elegant design is evident in this 200 series panel with well-spaced cylindrical modules and simple mounting system.


Tubular module design
The design for Solyndra panels was based on a series of tubular modules mounted parallel to each other inside a frame. The generously spaced tube structure allowed airflow through the panel thereby reducing wind loading. Where large-area flat panels might fly off a roof in strong winds, Solyndra claimed its panels could withstand 130-mph winds without specialized mounting. With no need to physically anchor the panel to the roof, Solyndra certainly delivered on the promise of simpler installation.

On the other hand, the danger of strong winds pulling flat panels off a roof is more of an issue for the partially upright mounts typical of panels angled to the optimum azimuth for the particular geographic location. As topical and "green" as solar panels are, they are a commodity and cannot avoid economic realities. Any benefits must outweigh the cost, and standard flat panels can still be mounted horizontally to save installation costs.

A second indisputable aspect of the tubular design was that the modules could shed snow and debris that often obscure standard flat panels. In many locations, solar power output can be significantly lower while waiting for the wind to clear snow from the panels. But again, the loss of power on temporarily shaded cells needs to be weighed against the higher cost of the tubular construction.

Continue reading this article at EDN.





Bob Lacovara

11/23/2011 1:02 PM EST

"If you build a better mousetrap, the world will beat a path to your door." Well: sometimes. But for sure, if you don't have a better mousetrap, you won't be run down standing in your front yard. Solyndra's design was certainly clever, but it sounds like it just didn't have enough advantage over more conventional approaches. Space between elements? You can space any elements if you'd like with ordinary solar panels. The gaps are just differently distributed. Collected reflected light? If you didn't have gaps between elements, you wouldn't care, plus, you now have two surfaces to worry about getting dirty. At three times the cost of a US-built competitor, this was a gold-plated mousetrap, and steel does just as well. The real crime is that the Obama administration provided loan guarantees for this thing. It's not that they could possibly understand the market (who expects a community organizer or his academic advisors to understand markets?) but that administration members were skeptical enough to be wary. But the taxpayers didn't get a vote on this one... Oh, well. A half billion here, a half billion there, just chump change, right? At least the executives paid themselves bonuses before it all came crashing down. None of this situation makes good reading: the technical, business, or political aspects.

Sign in to Reply



WKetel

11/30/2011 7:53 PM EST

The unfortunate thing is that in seeking to be different they unfortunately forgot to be better. A better product that costs more still has a chance, an inferior product that cots more needs a miracle marketer or it is doomed. This one had no miracle marketer.

Sign in to Reply



Himanshu_Gupta

11/23/2011 1:38 PM EST

what i read was that their strategy to subsidize the solar panels so that they could popularize their product did not pay off. But this is quite a detailed article about what went wrong. Its true that Solyndra's elegant design provided some increased efficiency but when comparing it with the low cost power production by First Solar and others then Solyndra loses out by a lot.

Sign in to Reply



BLinder

11/23/2011 2:07 PM EST

Gee, let think through this, the solar guys decided the right thing to do was to drive to price parity with the golden spot of one dollar per watt. So if you have any business sense the solar market moved from a premium price point to a commodity position which means lower gross margin that is only recovered with methods to provide high volume manufacturing. Now everyone is viewing the demise of solar as it has reached price parity, but a lot of over priced providers are going belly-up. I think a first year economics student could have seen this coming!

Sign in to Reply



sharps_eng

11/23/2011 2:11 PM EST

They mess things up for those who come afterwards. In Britain a failed monorail project blighted government-backed projects for decades. It's not wrong for the govt. To have the odd punt but they do go overboard, don't they?

Sign in to Reply



chanj

11/23/2011 7:13 PM EST

Instead of using fancy mechanical design to improve "efficiency", shall the focus be on finding ways to improve energy harvesting? Thin film solar is at 20% efficiency. If a technology can double or even triple the efficiency of today's technology, I believe it will benefit us more, driving down the cost per watt.

Sign in to Reply



ibm221

11/24/2011 12:05 AM EST

lol, you think this is as easy as talking?
those politicians are as naive as you to make such kind of mistakes.

doubling solarcell efficiency ..uh .. should be more difficult than you imagined.

AMAT shut down it's thin film R&D since it efficiency can't pass (i can't remember 10or 12%)

Sign in to Reply



goafrit

11/23/2011 11:50 PM EST

I wish this company never got registered. It is the only beast that will cost us next election. Obama could lose for this mess.

Sign in to Reply



ibm221

11/24/2011 12:13 AM EST

there are plenty other beast out there.

this one is a good reflection of Obama's inexperience and rashness.

Sign in to Reply



Bob Lacovara

11/28/2011 10:02 AM EST

What a pity... this global leader, winner of a Nobel prize for, um, something, leader and defender of Fast and Furious, defender of illegal aliens against the state of Arizona, this monarch among men, will lose an election just because of a little mistake on a solar power company? There's just no justice in this world.

Sign in to Reply



phoenixdave

12/12/2011 4:40 PM EST

Based upon the options I'm seeing on the other side of the aisle.... Obama is beginning to look like a genius..

Sign in to Reply



kinnar

11/24/2011 5:17 AM EST

What everyone is saying here is correct, but simultaneously it is also correct that a new invention will always be costing higher, so in this kind of cases the government should not let the company die with the technology, but instead they can transfer the technology to some of the university and they can work on making the technology acceptable price and performance wise.

Sign in to Reply



Bob Lacovara

11/28/2011 10:06 AM EST

Since when does every new invention require the support of the government to be developed? If an idea cannot support itself, why should you and I support it? Is this what it has come to? A new product doesn't have to attract investors, it just has to have enough friends in the government to warrant spending taxpayer's money. As a result, the market no longer determines what is valuable and what is dross: some ignorant civil servant picks winners on the basis of what he hears on television, or what his boss tells him to back. Remember that the originator of the weed whacker (string trimmer) couldn't get a patent because some dolt of a judge decided that the string trimmer idea was "obvious". So much for government insight into technology.

Sign in to Reply



Kevin.Jackson

11/30/2011 9:17 AM EST

Thank you Bob.

Sign in to Reply



Bob Lacovara

11/30/2011 11:43 AM EST

I am replying to myself to mention that the inventor of the string trimmer, George Ballas, died this June. He was one of those guys who kept charging after new ideas: I had the pleasure of exchanging e-mail with him some years ago. I wish I had come up with one of those "simple, effective, and useful" ideas, like his for the string trimmer.

Sign in to Reply



Kevin.Jackson

11/30/2011 9:16 AM EST

Government is not competent to select winning companies or products, that is why they should not do it.
If they must spend my money this way (contrary to popular belief, the government has no money of their own, they are spending my money), how do you expect these people, who's biggest accomplishment in life is winning a popularity contest, to select the "right" companies to enrich?
Only the free market can competently select the right companies.

Sign in to Reply



agk

11/24/2011 6:49 AM EST

The idea is good . This design seems that the coverage is from almost from sun raise to sun set. I feel that the tube diameters can be increased for better efficiency and with a little more strong mounting.

Sign in to Reply



Bob Lacovara

11/28/2011 10:10 AM EST

Clearly, the idea isn't obviously good. To decide if it's good isn't a matter of inspection, either. If you'd like to decide whether or not this is such a great idea, replace the cylindrical cross section of the Solyndra design with either a flat plate of the same diameter, or if you like, an surface with an angle of perhaps 120 degrees. Then point this surface towards noon, and calculate the effective surface area compared to a cylindrical surface. Then you can decide whether or not the cylinder is a good idea. I haven't done this calculation, but perhaps I will.

Sign in to Reply



Kevin.Jackson

11/30/2011 9:18 AM EST

What part of this dumb design do you think is good?

Sign in to Reply



Artist

11/24/2011 3:20 PM EST

During my trips in China in recent years, I saw this type of solar design every where. If that is what Solyndra is proud of, one should not have hard time to understand why it fails.

Sign in to Reply



ibm221

11/24/2011 7:11 PM EST

LOL, you 'd better look carefully.
Those solar design in china generate hot water instead of electricity.

but Solyndra could have draw inspiration from them.

Sign in to Reply



Bert22306

11/24/2011 3:37 PM EST

This article brings to mind a previous one, about tradeoffs in engineering design. As I opined then, no design is without tradeoffs. Any designers knows this intrinsically.

These solar panels are no exception. Obviously, a flat panel oriented optimally will be more efficient. Just as obviously, the installation will be more difficult. And, depending on the obsessive-compulsive tendencies of the homeowner, the level of personal stress during storms would be considerable lower for the Solyndra panel owner.

I have very serious doubts about this particular "federated" model for "going green." Going green, by depending on average individuals to own and maintain more of the infrastructure, seems doomed to failure. My prediction is, the average joe will be all enthusiastic in his new display of social consciousness to neighbors, at first. He will then become bored with the exercise, let the once-new hardware take its passive course, and soon enough tear it all down in a search for a simpler life (and reducing what has by now become an eye sore).

Some people are able to predict this behavior sooner than others, never intending to jump on the bandwagon. We got away from backyard wells, coal or even oil burning furnaces, candles and kerosene lamps, splitting logs and then cooking on wood fires, and so on, for some very good reasons. It just seems extremely risky to base a business model on people going backwards, in this regard.

The government is not particularly adept at business oriented risk assessment. Politicians think and act on slogans and hype, not business acumen. The voter needs to internalize this and make decisions apprpriately (IMO, naturally).

Sign in to Reply



Bob Lacovara

11/28/2011 10:16 AM EST

Bert, your observations on human nature are pretty much the same as mine. People will do a thing as long as it has some obvious benefit: economic or emotional or some other perceived value. If the trouble is too great, they pass. Personally, I don't care if the world runs out of gasoline anytime at all after roughly 2050: it just doesn't matter to me. Nevertheless, I don't pour it out on the ground, and if the mileage of one of my cars starts to drop, I find out why. The engineer in me, who says "you'll be dead by 2050" tells me not to worry about gas for people who aren't even alive yet: the same engineer tells me not to waste a resource for no good reason. Most people won't agree with this, but that's ok: I don't insist that they agree. ;-) But your point is quite right: no one is going to do the "green" thing in the long haul unless it provides some sort of benefit.

Sign in to Reply



Silicon_Smith

11/29/2011 12:54 PM EST

Totally agree with Bob. There has to be a good enough reason for change. Till the time the ownership and maintenance is going to rest eventually with the user, Solar is not going to succeed. There are too many lines of thought which pull one away from sacrificing something for a green tomorrow - Who knows if the earth is really running out of fossil fuels anytime soon? While, this may be a bit preposterous, I think any shift away from the conventional sources of energy would not be possible till the big oil/gas companies feel they've milked their oil investments enough. There is just too much money invested in Oil for any technological breakthrough to make them obsolete. Don't see this happening for next fifty years at least.

Sign in to Reply



Bert22306

11/29/2011 3:52 PM EST

I wouldn't necessarily go that far. My position is that people won't go back to chopping wood for their heating system, and using a septic tank instead of the sewer system. Federating the utilities that way is not what I would consider a smart way of going green.

On the other hand, that's not to say that the utilities, and our personal transportation, can't evolve. They can. In some cases, such as sensible electric cars (not relying on just a battery for energy source), the consumer would even benefit with simpler mechanical systems to worry over.

Sign in to Reply



LiketoBike

11/30/2011 10:20 AM EST

There is an even bigger obstacle to the "average Joe" adopting "green energy" technologies...the HOA. I see articles in the paper all the time about a particular energy-efficient house design, or add-on tech...from PV to simple passive aspects which require almost cost-less overhangs, orientation, etc. I look at this stuff and the engineer in me says, "Neat! Clear benefit. Let's do it." Then I think about the HOA and the builder. Builder is not going to allow that to be built in this neighborhood (or any other they are workin on...they are a production line, and will only build a few designs in any given neighborhood). If for an existing house, the HOA is not going to approve it - because it looks a little different. Lord save us from the cookie cutters...

Sign in to Reply



Robotics Developer

11/26/2011 10:45 PM EST

Well I am sure that there are a number of factors with the failure of Solyndra for me it was simple: Government should not be involved with "investing" in any company. The normal channels of investment are far better capable of understanding and evaluating risks and viability of start-up companies/new technologies than ANY Federal/State/Local government entity!! Let this be a warning for future government meddling: taxpayer beware!

Sign in to Reply



eet213

11/28/2011 5:56 AM EST

During my trips in China in recent years, I saw this type of solar design every where. If that is what Solyndra is proud of, one should not have hard time to understand why it fails.http://www.uk-power-battery.co.uk

Sign in to Reply



Kevin.Jackson

11/30/2011 9:23 AM EST

I don't see any solar power at the link.

Sign in to Reply



eet213

11/28/2011 5:57 AM EST

I wish this company never got registered. It is the only beast that will cost us next election. Obama could lose for this mess.
http://www.uk-power-battery.co.uk

Sign in to Reply



Kevin.Jackson

11/30/2011 9:24 AM EST

As well he should.

Sign in to Reply



IFindNickNamesAnnoying

11/30/2011 3:31 PM EST

Everyone seems concerned that Solyndra went insolvent after a $535 million loan. If you divide by the number of people in the country, just over 300 million, that's only $1.78 apiece. Next when you read that China subsidizes (not a loan) their manufacturing heavily, it's no wonder that our manufacturing has trouble competing. We're afraid of spending money to make money.

Sign in to Reply



Bert22306

11/30/2011 4:09 PM EST

Actually, we are afraid to have our money thrown down the toilet. You can't make valid business decisions, when your bread and butter comes from creating catchy slogans and saying what the masses want to hear.

On the other hand, if everyone would just contribute a mere 50 cents a year to me, which is hardly noticeable to them, I would be most appreciative. I promise. I will think up great things of you do this.

Sign in to Reply



Bob Lacovara

12/1/2011 11:01 AM EST

Dear "IFindNickNamesAnnoying": yep, me too. That's why I use my name. I am a professional, addressing other professionals, and under those circumstances, I use my name. You may or may not, as you please.


"We" aren't afraid of spending money to make money. There's an institution to help us do that, it's called the "stock market". You pick a likely company, ante up money, and as long as they are successful, they pay you a dividend, and maybe the price of the stock increases. All is well. Winners are rewarded, losers get to try again.

No one asked me if I wanted to invest $1.78 in Solyndra. I didn't. And since it was taken from me by threat of force, it's theft, pure and simple. Worse still, even if Solyndra had made money, I would not have realized a return. So, the mantra seems to need to change to "you have to spend other people's money to make money." Of course, that's nonsense. Only a parasite, like a government official, thinks he can take your money for his own profit, and that of his friends.


Lastly, I don't care what China does with its money. China is a totalitarian regime, not a free-market capitalistic environment. They are not in any way, shape, or form a good model for anything that takes place in the US economy. China will eventually reap the rewards to which it is entitled.

Sign in to Reply



derF

12/2/2011 8:21 PM EST

Your "spend other peoples money" comment is disingenius. That is precisely how the wealthy operate/invest/live -with someone else's money. It is the basic premise of wealth in America.

Sign in to Reply



Bert22306

12/2/2011 8:45 PM EST

Bob's statement was far from disingenuous. One thing is for an investor to freely put money on some project or other, knowing he is taking a risk.

Quite another is to have our money taken from us, no questions asked, and then "invested" in something we never would have invested in, if left to our own devices.

I'll grant you that most government spending is done this way. But that's why government should only spend our money to do things we legitimately task them to do. It mitigates this sort of risk.

No one hired the politicians to be our venture capitalists. They aren't remotely qualified to do that job.

Sign in to Reply



Bob Lacovara

12/5/2011 8:59 AM EST

derF, sir: not at all. That is not at all how the wealthy operate, or, at least, the important part of what they do. The "wealthy" become that way by evaluating opportunity and risk. They are good at it. True, they sometimes convince other people to put their money into the pot: if you are smart, you do so, and you get a share of the action. We call this "the stock market". I cannot do what many successful businessmen do: so I let them do it with my money. This is called "division of labor". I have no problem with it: I am a worker bee in the hive of capitalism, not a member of a herd of cattle in the socialist state.


Bert has stated my objection to the government's "investing" programs perfectly well. (Thanks, Bert.) It is disquieting that within the civil service halls, they talk about their "business model" and their "customers". This shows the fundamental disconnect between what a government agency is, and what they think they are, which is definitely not a business.

Sign in to Reply



allananthony

12/1/2011 2:33 AM EST

It's not "government money"; it's the TAXPAYER's money. Using the term "government money" is such a misnomer.

Sign in to Reply



Bob Lacovara

12/1/2011 11:04 AM EST

Allananthony, you cannot repeat that refrain enough. Strangely, it's not a difficult concept, but many people don't get it. Most of those people work for the government.

Sign in to Reply



Jongleur

12/5/2011 3:57 PM EST

I think the government can help pick winners and losers effectively- by offering prizes or fixed price contracts. Dr. Diamandis offered an X-Prize, and it spawned several efforts to build suborbital vehicles. NASA offered milestone contracts to supply the space station. The Department of Energy offered a prize for an affordable and efficient light bulb. Paying for results is better than paying for trying.

Sign in to Reply



Bert22306

12/5/2011 4:17 PM EST

And the government does this all the time, for programs that it legitimately runs. NASA, DoD, and all the other departments, do this on a daily basis.

However, no one has tasked the government to become our National Venture Capitalist. There is no government agency set up to do this, and the Solyndra case is a text book example of how taking on this new responsibility can fall flat on its face.

You cannot do the job of a VC by running on politically motivated slogans and hype. Just because some lawyer claims that what Solyndra was doing was the future, it doesn't make it so. Venture capitalism is very risky, and the people successful at have to be dispassionate, and they take personal responibility in making tough calls. Throwing tax payers' money left and right, with abandon, using nice sounding slogans, is certainly not the way to manage risk.

If a real world VC had blown that much money, he would likely be out of a job right about now, if not in prison. Who do you see in government, involved in this case, that is sending out resumés?

Sign in to Reply



Bob Lacovara

12/5/2011 4:19 PM EST

Jongleur, can you point out to me anywhere in the Constitution where offering carrots for development is encouraged by the writers? Who asked the government to do this? But more importantly, what makes you think the government could ever be more efficient than ordinary competition in the market? Paying for results has two major drawbacks: (1) no one can guarantee results on cutting edge projects and (2) if some civil service group wishes to pay for an attempt, let them pay with their own funds. If I wish to fund a research effort, there's always the stock market and similar investment vehicles. It just isn't the federal government's job to be a venture capitalist.

Sign in to Reply



snowboard9

12/10/2011 11:28 AM EST

All this public fury on a noble attempt to invest in American technology for alternative energy.

I would do it all over again as the benefits of upside for success far outweighed the loss.

$535M is about 8 seconds spending for that sacred cow, the Dept of Defense.

Sign in to Reply



Bert22306

12/12/2011 3:48 PM EST

I honestly fail to see the "nobility" in incompetent waste of taxpayer's money.

This sound to me a bit like saying that the previous administration made a "noble" attempt at ridding Iraq of a despot.

In both cases, the administration overstepped its bounds, went beyong its area of knowledge and expertise, and the result was a predictable flop.

It is not the administration's job to be the country's venture capitalist. It is not the administration's job to single-handedly, unilaterally, enforce UN resolutions either.

Sign in to Reply



Bob Lacovara

12/12/2011 10:34 AM EST

Snowboard9, I am absolutely in agreement with you. It was "noble" in the sense of the Noble prize being awarded to Yassir Arafat, for "peace". And indeed, I wish you could do it all over again. And be joined with all of the folks who see it your way. You still have a chance: there are lots of opportunities in the penny stock market. ( I am curious: how did the "benefits of upside for success" outweigh the loss? What are "benefits of upside for success", anyway?)


Here's my (serious) point: you want to invest? I just don't want to be dragged along with you. That's what happens when the government becomes a venture capital firm. It invests _my_ money in things that _you_ like. I don't like that. I don't want to tell you how to invest. Why should you want to tell me?


Your observation on the DoD is spurious. True, you may or may not want your taxes spent in that way. Regrettably, the world is not a benign place, and a DoD will be a necessary department of the government for some time to come. I think you'll find that far more people would prefer their taxes to go to the DoD than government investment in failing businesses such as GM or Solyndra.

Sign in to Reply



phoenixdave

12/12/2011 4:41 PM EST

Hopefully enough new R&D of value will come out of this failure to drive a successful future technology.

Sign in to Reply



DrWattsOn

12/15/2011 7:44 PM EST

I appeal that my following comments be considered as ON topic. I'm a NON-"Professional", ie, I am a 67 year old Electronics Technician. At least, I have been accused of "thinking like an Engineer".

But I didn't manage my skillsets and financial resources, so I'm one of the "members of a herd of cattle in the socialist state" (at least my SS came partly from my own pocket). It was MY mistake to not plan for the effects of aging and saving for a "retirement" after hard times.

Politicians have proven to be vain, self-seeking, sociopaths on the level of Bernie Maddof: no goal other than accruing power and enjoying the personal perks and privileges of their daily lifestyle. Their skill set is manipulating others by deception, intimidation and coercion.
OPINION
Solyndra was never designed to succeed as a commercial venture, it was a 100% POLITICAL scam, allowing our pious, imperious "governors" to take some of the Fed. Res. funny money out of taxpayers' pockets and put it into their own and their friends' pockets. They were all crooks from the beginning. Solyndra was just a cover operation to "launder" tax money under guise of a legitimate pursuit, that in the commercial space would have never been funded. The minute OUR money was "loaned" to Solyndra, they were all looking for a quick getaway. And they gotaway! They will never be prosecuted, much less convicted, for the crimes they commit ( some still, now).

Solyndra IS a Political topic; their Engineering had no redeeming inherent value!

I thank God that I got to read the opinions by Bob, Bert, et al, whose posts demonstrate that they are good engineers, and by that have developed accurate social precepts and perceptions. Too bad more like them haven't stopped "my Mommy/Daddy/God, the Government" (well, that's our RULERS own perception).
OK, that's all "just my opinion": I've been wrong before, so I want the heat of criticism of this post - contents or appropriateness, just to "get my mind right, Luke"
DrWattsOn

Sign in to Reply



Bob Lacovara

12/16/2011 1:54 PM EST

DrWattsOn, first off, your comment isn't off-topic, to my mind. Secondly, don't be too upset with the accusation of "thinking like an engineer". ;-) My wife tells me that sometimes, and trust me, it's not always an encomium. But I digress. Your evaluation of the Solyndra disaster is very pessimistic, but that doesn't disqualify it. In short, you seem to allege a fraud in the Solyndra business. Now, let's see: is this the first time any such fraud might have occurred? Um, no. Are the sums of money such that the risk of fraud are tenable to the players? Um, people have been killed for $500M. So: they had the means (control of the company, and the ear of upper-level administrative types), motive (serious money); how about opportunity? Of course, they ran the company and their friends run the government. I don't know if it was fraudulent from the get-go or not, but it is certainly possible. I'd like to think that these people merely plannned to use their influence with the administration to try to insure their company's success, but maybe it was just old-fashioned theft. You aren't crazy, and I think you are thinking like an engineer.

Sign in to Reply



Please sign in to post comment

Navigate to related information

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)