We also reported on a Stanford University study that calculated that there's enough wind near shore and over land combined to produce at least half the world's power demand by 2030, using what the researchers say is the most sophisticated climate model ever created.
As the installed base of turbines has grown, manufacturers view operation and maintenance services as an increasingly important revenue stream. That's been especially true during the industry’s current slowdown. One reason for the contract price drops has been better service performance of the turbines themselves. Another is more competitive bidding among turbine manufacturers for service contracts. It's interesting to note that the period covered by the analysis coincides approximately with the worldwide financial downturn, which put the brakes on growth in many industries and heated up competition.
One reflection of turbines' improved performance and improvements in wind farm management is the fact that the contracts' average availability guarantees reached 96.9 percent. The report noted that such guarantees for actual energy production are becoming more common.
The participants in this first Operations and Maintenance Price Index expect contract pricing to remain relatively stable until at least 2015, according to the report. The most competitive pricing of all markets occurred in the US.
In the future, the Index will be updated twice a year.
The best projections of the viability of intermittant renewables such as wind and solar are around 10-15% of the available power required. As others have said, it simply needs storage to get past that 15%. I love reneawables, but I acknowledge the problem.
I am glad to see that the price is dropping, but you did not say anything about storage. How can wind generation amount to more than a couple percent without some way to store the generated energy? When the wind stops, is it not true that the generator draws energy from the grid to keep it warm, to spin it up as the wind increases, control circuits, etc.? And with absolutely no energy storage there must be a coal /gas / ?? always running at 100% to pick up the complete load within a couple cycles of the wind dropping (or cloud crossing the sun).
Without storage solar and wind (even if the hardware were free) can never amount to more than 10% of energy needs. True, we could put up enough generators and solar panels to cover all demands... momentarily, but night comes when no panel works, and days come when even the Santa Ana winds don't blow.
I personally have no concerns about the appearance of modern windmills. I don't understand why anybody would find them aesthetically intrusive. I find their slow steady turns fascinating to watch!
Nadine, I like your point about visual appeal, or lack thereof. They are not fun to look at, although the ones in California I've seen tend to be located away from people.
You make a good point. The ROI increases as more users/buyers invest. I'm curious to know how the savings break down. Has the initial cost dropped significantly or just operating? Or, is long-term maintenance where the significant savings are?
Where the savings lie makes a difference for future investors.
And, on a separate note, better design would help lesson the NIMBY factor. Many communities still fight against wind farms as a visual blight.
Thanks, Rob, I agree about the good news. I find Jerry's input about what I expected, meaning, here's a technology that's not too expensive and it's been around a long time, but has not seen mass adoption. I think much of the reason has little to do with economics or technology, and more to do with psychology. It's the early adopters vs the mass market, as we've seen in many industries, most notably personal electronics. And not that many people live on farms or in the country anymore.
Nice article, Ann. That's quite impressive that wind is becoming competitive with gas and coal, especially with gas costs moving so low. This is very good news for alternative fuels.
Every time I drive through West Texas I wonder why we don't hear more about energy from wind farms - they are certainly out there and at least in Texas there are many more than a single turbine on the occasional farm...seems like these technologies have been around a long time (like solar) but are extremely slow moving. Some folks are fascinated by renewable energy and are determined to live "off the grid" but it just doesn't seem to be very popular in the mass market place...
That WT's in small sizes are not really cost effective is because of greed, bad busines model or something else as I can make them for well under $1k/kw vs the $4k/kw most units cost now.
Remember they perfected them in the 30's!!!! Many of them are still running like the Jacob's and others.
A 2k WT enough to run an eff home in an average wind site is more simple than a moped!! So why are they so expensive? I see a great market with large profits I'l be filling within a yr. I can get 200% profit and still beat the others by 50% and even beat the Chinese.
I did go into production of some in the late 70's but the market wasn't there but it is now for a quality unit.
Done right they need little maintaining other than a yrly check and new bearings every 3-5 yrs if designed and built right.
Thanks for your comment, Lou. Since most of the technical and manufacturing efforts for wind turbines right now appear to be aimed at making them in high volumes for wind farms, I'm not surprised that an individual agricultural farmer finds a single wind turbine impractical and payback is slow. It doesn't sound like the rental model is working very well for the individual farmer, but that model could, of course, be tweaked to make it more attractive and productive.
Inspired by the hooks a parasitic worm uses to penetrate its host's intestines, the Karp Lab has invented a flexible adhesive patch covered with microneedles that adheres well to wet, soft tissues, but doesn't cause damage when removed.
Engineers at the University of California, San Diego are designing a robotic arm that takes inspiration from the loose, flexible, yet very strong structure of the armored plates on a seahorse's tail.
Researchers at the Missouri University of Science & Technology have designed a new nanoscale material that can transmit light faster than the 186,000 miles per second it usually takes to travel through air.
It has often been said that as California goes, so goes the nation. This spring, the state's wind power is setting energy generation records and solar energy generation is expected to rise sharply during the second half of 2013.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 5
Early in my career, I worked as a draftsman and remember the days of drawing on vellum with numbered pencils and Mylar with plastic lead. This was a fun experience in the sense that I ...
I've been using workstations for more than 10 years and love finding ways to get more performance from my system. With demanding professional applications that require more power each ...
A lasting memory from my first job as an engineer in an auto assembly plant is standing on hard concrete at six in the morning, vending-machine coffee clutched in hand, listening to ...
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
To save this item to your list of favorite Design News content so you can find it later in your Profile page, click the "Save It" button next to the item.
If you found this interesting or useful, please use the links to the services below to share it with other readers. You will need a free account with each service to share an item via that service.
Tweet This
6 
