Blowin’ in the Wind
Every time someone talks about the world's need to move on from coal and oil as its main energy sources, the next sentence seems to be that "there is no magic bullet." No one source, they say, can take the place of the fossil fuels on which the modern world depends. Or maybe there is one after all. Michael McElroy, a professor of environmental studies at Harvard, did an analysis of wind power with two colleagues, and here's what they report:"…a network of land-based 2.5-megawatt (MW) turbines restricted to nonforested, ice-free, nonurban areas operating at as little as 20% of their rated capacity could supply >40 times current worldwide consumption of electricity, >5 times total global use of energy in all forms." Forty times the electricity we currently use? That's a lot, and it's not asking that existing wind turbines become much more efficient (or that the wind blow any more consistently than it already does). Their paper, in this week's Proceedings of the National Academy of Sciences, is HERE, and it's worth a look. They do not claim wind is perfect — people often dislike having turbines nearby, electric vehicles go limited distances, etc. — but it's a brighter picture than other analyses have painted.
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No, if you stick enough of these up, weather patterns will change due to changes in wind speeds. Combination of things are necessary to address our energy needs with nuclear plants front and center.
Posted by: Huh | June 23, 2009, 6:59 pm 6:59 pm
It’s not the holy grail…something is out there…as with wind…the answer lies within physics…
Posted by: phallon | June 23, 2009, 7:17 pm 7:17 pm
I have only read the abstract but it seems there are some missing pieces in this article. How many wind turbines must there be in this network? How many acres of land will they cover? Since the land must be ice free, there is only a limited area where they can be located. Also the land must be nonforested. Are they going to clear cut the trees to make way for these turbines? It must also be nonurban, so it looks like the country (i.e. non city) dwellers will take the hit again. Also Teddy Kennedy has already vetoed any wind mills in the ocean near his home(s), so where will we find oceanfront property?
Posted by: Mary Carpenter | June 23, 2009, 9:11 pm 9:11 pm
this is pure bunk. CALTECH physicists say wind can only provide 8% of the energy needs if you put a windmill everyplace possible. These windmills are having huge technical problems and failing gearboxes at $250K per, Companies who were making these things are going out of business because of the failures. go check out the CALTECH’s Dr. Nate Lewis website for a real technical analysis. He was the guy who debunked cold fusion.
Posted by: brian | June 23, 2009, 9:22 pm 9:22 pm
brian wrote: “this is pure bunk. CALTECH physicists say wind can only provide 8% of the energy needs if you put a windmill everyplace possible… go check out the CALTECH’s Dr. Nate Lewis website for a real technical analysis…”
Please check your info. A Caltech chemist, NOT physicist, who’s an expert on surface chemistry and photo chemistry, not wind, makes the unsubstantiated guess that 3 terawatts could be PRACTICALLY generated, NOT “if you put a windmill everyplace possible..” And even that would be 3/28 of the energy needed, nearly 11%, NOT 8%.
Lewis is a CHEMIST, not a physicist, and is an expert in surface chemistry and photochemistry, NOT wind energy. He has a vested interest in grant money for solar cells and doesn’t want to see wind get a piece of it. I am also a chemist and am an expert in physical organic chemistry. I’m not a wind expert either. So it’s not clear what the answer is from Caltech’s info.
Posted by: The_Mick | June 23, 2009, 11:05 pm 11:05 pm
Huh above is on to something. Although it is more complicated than that. Wind is Nature’s attempt to correct an imbalance in pressure between areas/regions. The Earth is constantly trying to balance the differences between the energy surplus and the energy deficit regions of the globe. Its success in doing this makes our planet habitable. Cyclones, cold & warm fronts, ocean currents and wind patterns are the mechanisms through which this is accomplished. By intercepting this energy before it accomplishes its objective, we deprive Nature of part of its corrective mechanisms, and nothing good can come of that. The real solution is for humanity to limit its numbers and energy consumption. By “harnessing” the wind, we would only compound the problem.
Posted by: PGtz | June 23, 2009, 11:11 pm 11:11 pm
if you want the “magic bullet” it should be in fusion, more research into this field is needed. For those who say “this cant be done its not feasable” look at the frekin sun thats all the proof you need that fusion works. Europe is already way ahead of us with the construction of the ITER facility and its purpose will give more “light” into the world of fusion. We should do the same.
Posted by: adam | June 23, 2009, 11:24 pm 11:24 pm
As a forecaster for several windfarms my employer (an energy company)owns/operates, I have learned the following… In the Central Plains, the months of highest production are Nov, Dec, and March which are not the months in which there is a high demand for electricity. The existing infrastructure for transmission of electricity from these wind turbines in the non-urban areas to populated areas is insufficient. The countries that invest heavily in the windfarms are socialist countries that don’t have to make economically sound decisions.
Posted by: a gal | June 23, 2009, 11:35 pm 11:35 pm
Wind power is good but has a lot of downfalls. First they must be set where winds are consistent. Technology is improving to make them more efficient in other words provide more power with less wind. Another problem is how to deliver the power, the greater the distance more power is lost on the way. They still have a lot to come along before being classified as valuable, Another downfalls are the noise they produce and the threat they pose to wildlife such as migratory birds.
Posted by: Frank | June 23, 2009, 11:46 pm 11:46 pm
Fussion is the key to power but still some long ways to become a reality. Nuclear power plants operate by fission. Still pretty safe and useful and a better alternative than wind and fossil fuels
Posted by: Frank | June 23, 2009, 11:52 pm 11:52 pm
Wind energy is clean. Nature is trying to correct imbalances due to temperature rise. In a way, global warming fuels wind energy. Windmills are an interesting way to take some of the temperature rise and convert it into useful energy, while at the same time removing some of the harmful generation of greenhouse gases. Fusion and other ideas are great for far off in the very distant future, but wind energy is here now, and needed now.
Posted by: Dugese | June 24, 2009, 12:14 am 12:14 am
Everyone knows it’s windy.
Posted by: Rosemary | June 24, 2009, 12:26 am 12:26 am
The answer my friend is blowing in the wind…
Posted by: Lawrence | June 24, 2009, 12:52 am 12:52 am
One 2.5 MW wind turbine can supply enough electricity for about 10,000 homes with a constant wind speed of about 6 to 8 miles per hour. You need to space these turbines about 1000 to 1500 ft apart. These wind farms can be built in less than 6 months. The total costs per turbine ranges from about 2.5 to 3.5 million each installed. They have a payback period of about 7 years, designed to last about 20 to 25 years. While coal and oil based electricity costs sky rocket… wind energy costs will remain steady or trail just below them and make them even more profitable.
Just the facts. I don’t know why we have GOP decent on these. I guess it is because Big oil buys them off. That is too sad. It creates alot of new high paying jobs.
Posted by: Clint H | June 24, 2009, 1:16 am 1:16 am
a gal,
You are incorrect about the noise they produce. I work with wind turbines every day. They turn really slow and when the wind is blowing pretty hard… it is very difficult to hear them. As for them killing birds… more birds are killed by flying into glass and buildings or your outside house cat. They certainly don’t get chopped up as people would think… they die because they run into the darn blades or towers. dumb birds. most fly around them.
Posted by: Clint H | June 24, 2009, 1:19 am 1:19 am
A gal,
Wow… “The socialist countries that use wind turbines don’t make sound economic decisions.” WHAT???
We build wind turbines all over the mid west and there are alot of big money going into them… Mostly from Europe… American companies, expect for FPL Energy (Nextera now). American companies are missing the boat… instead of energy independence… we are just switching form the middle east to europe because of simple minds as yourself.
REALLY. Who the heck do you work for? You don’t know much. Try talking to Garrad Hassan, Renewable Resource Consultants.
Posted by: Clint Harris | June 24, 2009, 1:34 am 1:34 am
Brian,
Companies going out of business??? GE??? I don’t see them on any list. Gamesa? I don’t see them on any list. Siemens? I don’t see them on any list. Maybe crappy turbines like Dewind… yes… but certainly not the 1st tier manufacturers. Get your facts straight.
Posted by: Clint Harris | June 24, 2009, 1:37 am 1:37 am
Wind is it. Any fool that doesn’t think so has never been to the midwest. We should have done this on a giant scale years ago.
Posted by: matchew | June 24, 2009, 2:27 am 2:27 am
One of our neighbors has a huge windmill on his property. It sits idle most of the time because of inadequate wind. It’s also quite ugly and a blemish on the New England landscape. This is the frozen, snowbound Northeast, not the windy plains or the sun filled skies of Arizona. It has rained here 6 out of the last 7 days.
Posted by: Ron | June 24, 2009, 5:04 am 5:04 am
Put one up next to Obama since he is blowing a lot of hot air all the time.
Posted by: jim 234 | June 24, 2009, 5:48 am 5:48 am
There is no magic bullet. We need wind, solar, atomic, hydro, and everything else we can think of. East and west coasts need to allow drilling off their shores. They use more petroleum than the rest of us. If they don’t want the wells, park the cars. I would like to see a way to use kudzu to produce alcohol. The stuff grows so fast is could be considered renewable and there’s no way to stop it. It has to good for something. … It really doesn’t matter. More people use more energy and other resources. As long as population continues to grow we will have an energy shortage and shortages of other things will soon be common.
Posted by: Oonogil | June 24, 2009, 8:22 am 8:22 am
Win is not a “silver bullet” to energy independence. However, it is an important voice in the chorus of current energy suppliers. Kansas is going to be a major wind energy producer soon and it will make a sizeable impact on domestic energy production. Fusion and crystaline energy physics may be a way off, but we have to do what we can today.
Posted by: KsDevil | June 24, 2009, 8:28 am 8:28 am
Wind power isn’t reliable – wind blows intermittently, so a wind farm needs energy storage. That’s why Denmark, with the capacity to produce 20% of their power by wind, only gets about 6% of their power from wind. Much of Denmark’s wind capacity is actually sold to Norway and Sweden. Why? Because Norway and Sweden run on hydropower that can be brought up quickly when the wind isn’t blowing and can be throttled down when the wind is blowing. The US is tapped-out on hydropower and our baseline coal and nuclear plants can’t be throttled quickly enough. So to use windpower, we need more natural gas turbines to even out wind’s intermittent production. That’s why gas company executives favor windpower.
Wind power isn’t cheap – the federal subsidy for wind is $23.37 per megawatt-hour, compared with $1.59 for nuclear. This simple fact is understood by anyone who reads Car and Driver – see Patrick Bedard’s June column, it’s sad when we get better information from Car and Driver than we’re getting out of Steven Chu, the Secretary of Energy.
Wind power doesn’t create useful jobs – Obama’s plan to create jobs by devoting more federal subsidies to windpower makes about as much sense as creating agricultural jobs by banning the modern tractor. Think of all the jobs that would be created by government subsidies for the horse-drawn plow. Windmills will no more make the US energy independent than horse-drawn plows would make us “food independent” or would make us more competetive in selling agricultural products.
Wind power isn’t “green” – the single wind farm at the Altamont Pass kills about 5000 birds per year – including hundreds of golden eagles and bald eagles. To those that point out that more birds are killed by windows – three years ago, this one wind farm killed 39 of the 500 nesting bald eagles in the area, no bald eagles were killed by windows. The windfarm has been under a court order to reduce the number of birds killed, but they have not leading to the likelihood that the court will order the windfarm to shut down for two months per year.
Posted by: Meab | June 24, 2009, 8:56 am 8:56 am
Wind. Hmmm. Well it’s good for some places, and not so good in others. And saying that we should rely solely on wind is lunacy. Just like in the stock market, diversification is key. One should never put all their eggs in one basket. What if wind stops blowing int one section of a huge farm? You don’t get power, which demands more from the grid, and the grid may not be able to handle it. Then we have a black out. Not a good thing. We should be looking at alternative energy sources, but not rely on one. Solar, wind, hydro, nuke, all are viable. Yes, some birds will fly into them. Yes some of them may look like crap next to your award winning lawn(who cares about your lawn but you anyway, get over yourself). The point is, we need balance. You can’t have it all one way. You greenies want it, but don’t want to kill critters. I hate to tell you, but it will happen. Just like whales being hit by ships, it happens. We’ll take measures to avoid it, but sometimes it’s just unavoidable. I think a few dead birds are a worthy sacrafice in order to stop burning fossil fuels. And also, you greenies who want this, but don’t want it in your backyard, hypocrits. Get over yourselves. You know who you are, and honestly, it’s the majority of you to begin with. Make a sacrafice and allow solar, wind, and nuke to be built, it’ll happen one day anyway.
I see I’m not the only Lawrence around here. I’ve got a digi-double, haha. Funny, you guys just did an article about that.
Posted by: Lawrence | June 24, 2009, 9:14 am 9:14 am
Wow, seems I triple posted it. This new posting system isn’t very good. I’m using Internet explorer 8, and having trouble. Never had this trouble before.
Posted by: Lawrence | June 24, 2009, 9:18 am 9:18 am
It is nice to know that wind may be able to do more than many people thought, but the fact remains that there does not HAVE to be a single magic bullet. We have many different possible solutions to the global warming problem, so why NOT pursue them all, and then see which ones actually are more efficient!
Posted by: jock59801 | June 24, 2009, 10:24 am 10:24 am
Clint H
No single energy source will provide enough energy for the future. We need wind generation, solar, nuclear, hydro, oil, natural gas, clean coal or as John McCain put it “all of the above”.
Wind generators can be used in many areas of the US as long as they don’t affect the view from Ted Kennedy’s place. He had that project scrapped before it got finished. Either his party opposes wind power or they believe in elitism. Take your pick.
Zero population growth is only solution but no politician from either party has the guts to address that subject.
Posted by: Oonogil | June 24, 2009, 10:41 am 10:41 am
to clint H.
6 to 8 mph, I don’t think so. That turbine might start turnin just a bit a 7 mph ground speed, but that ain’t gonna do it.
The big money that’s going into them are your $ (federal $) in terms of tax/energy credits….Hello…do you think these companies would invest otherwise? Some states are now requiring a certain percentage of green in their portfolio, otherwise we wouldn’t have this big push in this country.
And no, I don’t have to talk to your so called “unbiased” expert from Renewable Resource Consultants.
Posted by: a gal | June 24, 2009, 11:08 pm 11:08 pm
Nice but debatable. There is another technology that is totally clean, is everywhere and has enough energy reserves to last literally forever. Geo thermal is what we would be doing if we had any common sense. Unfortunately common sense is almost totally lacking in every person that seeks leadership. Geothermal is everywhere, it is clean and it is limitless yet we aren’t doing anything with it. We have this energy source literally at our feet, it could make us energy independent, it has zero pollution yet we will allow climate change to overtake us before we make a serious attempt at stopping it. We will look back at this time as an opportunity lost, we will wring our hands and wonder why we let it happen. We will let it happen because we have allowed a pandemic of stupidity to spread. We let stupid people elect stupid people to lead us. We are doomed to repeat the past and that is ALWAYS wait until disaster happens before reacting. Climate change may not be fixable when the stupid people, who shouldn’t have a say in anything, finally realize the truth.
Posted by: Joe | June 30, 2009, 1:39 pm 1:39 pm
Thanks for this article and coverage. An important issue and opportunity for us to make a positive impact.
Future generations are depending on us to uncover such new sources of sustainable energy.
Posted by: M S MacDonald | June 30, 2009, 3:45 pm 3:45 pm
Hm. According to one person here, we’re playing with fire if we interrupt Nature trying to correct imbalances. Think about the size of the planet. Then think about, say, a wind farm with 10,000 turbines. Then think about maybe 1,000 identical farms around the world. Does anyone really think all these together would alter the world’s weather (or whatever)? Local effects? – a VERY qualified (and hesitant) “maybe.” I have no idea how big a percentage of our energy needs wind can provide, though I think it will be substantial if it ever is built up in a serious way. Ditto solar (and perhaps more so). Nuclear? Well, yes, but it takes a long time to build a nuclear plant, and we’re still stuck with the radioactive waste. But back to wind. What about high-altitude wind? There is research going on into having airborne turbines, supported aloft by balloons or dirigibles, something like that. For those unfamiliar with this, I’m talking about MILES up in the air, up in the jetstream region, not a few hundred feet over your house. No birds, and, high enough, few if any planes to worry about. And all you have to do to convince yourself that the wind “upstairs” is far more constant than on the ground, go on top of the highest building around and check it out: almost constant breezes. I have a second apartment in a ten-storey building, with no other building anywhere near as tall for upwards of a mile. There’s virtually *always* a reasonably stiff breeze, maybe at least 8-10mph. (That’s on the top floor, where my apt. is.) Wind may not be the end-all, but it sure holds great promise. We had an effective old-fashioned windmill on the farm when I was growing up – gave us some electricity, and pumped spring water.
Posted by: Mekhong Kurt | June 30, 2009, 11:15 pm 11:15 pm
Yellowstone ALONE could power the WORLD! (There are many such geothermal sites scattered across the planet.) We simply do not have the WILL to accomplish this for the good of everyone.
Posted by: rakko | July 18, 2009, 11:13 am 11:13 am
Too expensive.
Thank you,
Robert
Posted by: aclepd | July 24, 2009, 7:13 am 7:13 am
We need fusion, and FAST!
Posted by: Thuin | August 23, 2009, 8:20 am 8:20 am