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More On Windmills

01/23/2013 4:12 PM

OK not directly on windmills, but on the energy needed to build them. Bases are massive poured blocks od concrete. As we all should know, concrete is sand, stone and cement. My question is how much energy to make cement. Just in the manufacturing process. BTU, therm or cubic ft. of gas. and electric power per ton of output. Or a source of information. Then to get fanatical, energy to produce a ton of steel. Then the same thing for carbon fiber. I know that a windmill will never produce as much energy as it takes to build. I am looking for a ratio of build/produce power over useful life. Short of that I am going to use the Stetson number of 2.86/1. Need I mention I'm anti-windmill.

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#63
In reply to #59
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Re: More On Windmills

01/26/2013 3:51 PM

Kindly point to some part of the exploration, development, construction or exploitation of wind power that COULD NOT be achieved with electricity.

I didn't say, "that is achieved" I said, "that COULD NOT be achieved".

This continent has all the resources to do this.

Your oil figures are sooooooooooooooooo not even close, too.

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#65
In reply to #63

Re: More On Windmills

01/27/2013 12:07 PM

So I take it that you don't believe in "peak oil"? How interesting. I didn't think it was open to question. Though my understanding is that oil will get scarcer and scarcer and more and more expensive as time goes by, leading to an economic "peak", rather than an actual crash of resources. Very complicated stuff indeed. Pro. Con. (In other words, No, I don't think we are going to run out of oil, I just think we are going to run out of "cheap" oil, cheap being a VERY relative term of course.)

No, I just brought it up because TCMtech asked a perfectly good question "what nation would not have coal or oil resources to build wind turbines, and I was reminded of that documentary in which there was a perfect storm of 1930's style economic collapse coupled with terrorist blackmail against oil producing nations to stop them from shipping oil to the US. That documentary was a couple of years ago and was flawed on several minor points...BUT I notice that y'all just narrowly missed an economic collapse last week! (Some feel that it was merely delayed by a year or two.) And I don't see terrorists going away anytime soon. So, yeah, could happen.

I thought it was a fair question deserving of a fair answer, thats all.

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#66
In reply to #65

Re: More On Windmills

01/27/2013 12:34 PM

Well,

Since we don't know how much "oil" there really is in the ground, it would be impossible to predict when we get to "peak oil". So, no, I don't believe in it.

We've been hearing about running out of oil for the last 50 years.

We could play dueling links all day, but, Lies, damned lies, and statistics will still be in play, depending on which side you're on.

The "bird grinders" are here and they aren't going away.

There's something about the barely audible whooshing sound they make when standing under them that is very soothing to me. And, so far, I've not been pelted with bird guts and feathers while enjoying the tranquility of a Minnesota corn field at dusk.

It's too bad that they don't grind mosquitoes.

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#71
In reply to #66

Re: More On Windmills

01/27/2013 8:56 PM

Yeah, its true, we HAVE been talking about peak oil for a lot of years! It does seem to be the boy who cried wolf for sure.

But remember, in the story, there eventually WAS a wolf.

And I like the idea of wind as well. The wind will never stop blowing. I was just surprised how difficult it was to find out just how big or small the carbon foot print might actually be! Oh well, everybody seems to have an opinion same as everybody has an axxxxxle, and they all stink. Some more than others!

Have a great day.

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#72
In reply to #71

Re: More On Windmills

01/27/2013 9:03 PM

You too.

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#67
In reply to #65

Re: More On Windmills

01/27/2013 12:43 PM

'... I notice that y'all just narrowly missed an economic collapse last week! (Some feel that it was merely delayed by a year or two.) And I don't see terrorists going away anytime soon. So, yeah, could happen....'

.

Yusef1, I notice you hail from far foreign land of Canada.

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As such, you might take notice that should we'all, here in the US, narrowly 'hit' an economic collapse, you guys in Canada are just one of many many other countries that are taking the tumble right along with us.

.

You know.....it's because you depend so heavily on selling us stuff. 99% of Canadian oil exports go to the US. Which brings up the next point:

.

Why would Canada allow terrorists to blackmail them into not selling oil to the US? That is just silly.

Being a Canuck, you do realize that Canada is the largest supplier of oil to the US, right?

.

Just in case you didn't know, we are in no shortage of coal here in the US.

The sale of coal at reasonable prices is vital to the economies of many nations. I'm sure that could present strong incentive for oil shipments to continue. Don't you think?

.

At any rate, your own analysis of the situation assures you that this country will not be without coal or oil (ostensibly, to build wind turbines) rather that the price will increase.

Seems pretty clear your '...So, yeah, could happen...', couldn't conceivably happen.

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OK, Lets see:

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Oil, check.

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Coal, check.

.

So we look completely ready to embark on constructing these post apocalyptic windmills.... but could you remind me why exactly?

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#70
In reply to #67

Re: More On Windmills

01/27/2013 8:40 PM

Oh, yes. If it could happen in the US, you betcha it could happen in Canada! Totally agree!

Your point? You would STILL be bankrupt and unable to afford to purchase our oil. Or anybody else's for that matter. TINAC! Unworthy of you. You know this!

Why would Canada allow itself to be blackmailed into stopping sales? Oh come on, you can think of some reasons. Lets find a terrorist organization who hates the US. That can't be THAT hard to find! Lets find a foreign power with access to nuclear material that hates the US. That can't be that hard to find either. Now imagine what my spineless leaders will say when they get proof that the Ottawa River will be contaminated with dirty fission products unless they turn the oil pumps to the States off. Silly? What part of this could not happen? Keeps me awake at night. Not you? Well, its not YOUR city is it so why would it?

That is only ONE scenario. Seem far fetched? Maybe a little bit...but I can think of a dozen easier ways to do it. Embassies being targeted all around the world has happened to the US, why would Canada think it is somehow safe? Maybe blackmail is not needed...didn't that guy in South America get a knot in his face and shut off his exports to the US? I know...it was a PR exercise, but it could happen. Not silly at all. Did you not watch the ads in which Amaco was delivering heating oil to poor families? Games maybe, but games with potential consequences.

And remember, we don't HAVE to sell our oil to you at all. China may make a better offer. In fact, I think they already have. My Prime Minister is not spineless at all, unlike much of his cabinet! He doesn't seem to mind shutting the taps off, as this link clearly shows! But hey, no hard feelings, its just business you know!

Coal will continue to be your ace in the hole. No arguement there.

Nice dirty coal. Hmmm.

Cute, but no not convincing. Sorry. Would love to be wrong on this one. Forewarned is forearmed, but y'all have to see the warning signs instead of just laughing them off.

Anyway, I think I have got off the topic of windmills and the costs associated with building them, so I think I shall just mark it as "off topic". Because it is...grin!

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#73
In reply to #70

Re: More On Windmills

01/27/2013 9:23 PM

Definitely no hard feelings.

.

I like reading your comments Yusef. Even when I don't agree, I appreciate the way you unapologetically put your opinion out there. So definitely no hard feeling.

.

I approximate the risk of the US and Canada becoming less than amicable trading partners in the next hundred years, to be similar in magnitude to the risk of something causing Mars will careen off course and smash into another planet in the next hundred years.

Possible. Highly highly improbable.

Owing to your Prime Minister's retention of his spine, I also doubt he will cave to the threats of terrorists.

.

You have my full agreement on coal being a horribly nasty fuel. It is the worst major fuel used to generate electricity.

I also agree that for the US, it is an ace in the whole.

Do you know who simply cannot function currently without out coal, and who therefor would almost certainly step back from competition with a certain supplier, if should we absolutely insist?

(Hint:Starts with 'Ch' and rhymes with 'ina'.)

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Canada is heavily vested and continues in to invest in the US continuing to buy essentially all of its oil exports.

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But once again, I think we have gone far outside reasonable considerations. Canada and the US will continue to be good buddies and treat each other well. Canada will not experience pussification, resulting in the inability to resist caving into terrorist demands.

.

This scenario may make good fiction reading. It does not come close to a probable reality.

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#74
In reply to #73

Re: More On Windmills

01/28/2013 11:56 AM

Economic forces and ideological forces. Unpredictable pesky things for sure. Hugo Chavez seemed to have a burr up his butt about the US, and considering that his exports into the US were among the highest of any country in the world (half of Canada!) his anti-American rants were not just bark, they had some bite as well. I spent 20 years in the military worrying about reservoirs and watercourses, many of which flowed into the US and trust me, we took those concerns really seriously. Blackmail has been used by extremists pretty regularly (some would say that terrorism is nothing BUT blackmail) but a notable example would be the relatively recent attacks on Danish embassies because of a series of insulting cartoons.

At the moment, we have an Indian uprising, that has threatened to cut all traffic within Canada, and has shut down border crossings. Millions of dollars worth of trade have been compromised on only the last couple of months. Threats were made to cut down power lines and trade routes into the US. This is home grown terrorism (in support of a cause which I actually have some sympathy with). Indians have threatened to halt oil going across the border in the past. The recent past actually. Like last month....grin!

So terrorists don't have to be wild eyed mujahadine staring up at the US helicopter that bombed his house, or some obscure department in the Pakistan government out for revenge , they can be home grown folks with an agenda. And because they are citizens, we must tread lightly!

Chavez did it because he figured an anti-American stance would help his position in the world. And I think he was just knee jerk anti-American in general. Nothing new about that! Nothing stopping Canada from electing just such an idiot. We seem to have a history of electing idiots. There is a powerful environmental lobby here in Canada which has the ear of a lot of politicians. If they had their way, the oil sands would be shut down tomorrow. This same coalition of environmentalists delayed the Keystone project. At the bottom of this article, there is a short list of names. One is a party leader, and like any party leader, has a chance, however remote, of getting into serious power. So it doesn't even have to be terrorists, it could be a grass roots bunch.

Anyway, I just deleted a few more paragraphs which were just manifesto style ranting.

Regards

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#75
In reply to #74

Re: More On Windmills

01/29/2013 6:05 AM

Thanks for the links Yusef. Some of that stuff is completely new for me.

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I don't really think we're that far apart in our thinking on the subject at hand. I think the apparent differences are based in semantics rather than being substantive.

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I think I understand you to be saying that an interruption in supply could occur and might be have probability large enough it shouldn't be ignored/discounted. You are right. An interruption is possible and might represent a non negligible threat.

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I still don't think Canada would cave to terrorists, foreign or homegrown. The response to correct the interruption (and the effect it would have on Canada) would almost certainly quickly escalate until the it was resolved. It might be politically unpopular, but the government of a state that tolerates open and aggressive hostilities within its boarders, and fails to protect the interests and property, cannot unequivocally be considered the government of those areas.

.

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My guess is that any terrorist initiated interruption is highly unlikely to last for a meaningful time.

The spice must flow.

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And so while priced would spike, oil consumption would not stop.

.

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Ever wonder if maybe the Russians aren't the only ones inducing cancer in their enemies? That is purely baseless conjecture. But if Ahmadinejad develops cancer in the next few years, it will arouse my suspicions....especially if it is similar to what Chavez is dealing with.

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#110

Re: More On Windmills

02/07/2013 10:17 PM

I did some basic online digging the last few days to come up with some realistic numbers for the production the materials used for making a wind turbine.

Mined iron ore to new steel ~2 MWH per ton.

Remelted and recycled scrap steel - ~1 MWH per ton.

Concrete ~ 250 KWH per ton.

Fiberglass ~8 MWH per ton.

Manufacturing, Machining and install ~ 150 MWH

400 + 120 + 200 + 150 = 870 MWH

Given those rough numbers one 2 MW capacity wind turbine weighing in with around 200 tons of steel and 400 tons of concrete with 25 tons of fiber glass would in theory take less than 1 GWH of energy to build from scratch with all new mined materials including machining and production and installation or under 500 running hours at full output.

So yes a typical wind turbine with a life expectancy of 20 years, ~ 80,000 - 120,000+ running hours, would easily produce far more energy than it takes to create and maintain it through its life time.

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#112
In reply to #110

Re: More On Windmills

02/08/2013 12:59 PM

2Mwh per ton?

But could be...BHPs cost for iron is $39.00 per ton for the ore (of which $7.4 is energy related. and then it costs 650KWH per tonne to refine after that. Apparently BHP's figures are not so far off from yours.

Interesting.

Thank you for doing all that research. I had to wade through 15 pages of skyrim and world of warcraft data to find this stuff. (What do those guys DO with their time!) Much of what I found was similar, some was of course, wildly different. Much of the data is suspect since it is often "best case scenario" figures by people with an axe to grind (or rather, a billet of steel to sell) but overall, it supports the case for optimal siting of wind turbines.

The case for less than optimal wind turbines might still need to be made, because after all, all engineering is an educated compromise, but that should be dealt with on a case by case basis. Technology changes...remember the Hoover Dam was initially an irrigation dam, and only incidentally a power plant because technology at the time only allowed electricity to be delivered within 80 miles of its source, and there was pretty much nothing within that radius. And technology related to wind power is changing VERY quickly.

Better yet, it allows for the gradual reduction and eventual elimination of coal and most oil in the production of electricity for consumer and industry. I suspect the population of Beijing (to name only one) are looking forward to the elimination of coal smoke!

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