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.
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.
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.
A new service lets engineers and orthopedic surgeons design and 3D print highly accurate, patient-specific, orthopedic medical implants made of metal -- without owning a 3D printer. Using free, downloadable software, users can import ASCII and binary .STL files, design the implant, and send an encrypted design file to a third-party manufacturer.
A recent report sponsored by the American Chemistry Council (ACC) focuses on emerging gasification technologies for converting waste into energy and fuel on a large scale and saving it from the landfill. Some of that waste includes non-recycled plastic.
Capping a 30-year quest, GE Aviation has broken ground on the first high-volume factory for producing commercial jet engine components from ceramic matrix composites. The plant will produce high-pressure turbine shrouds for the LEAP Turbofan engine.
Seismic shifts in 3D printing materials include an optimization method that reduces the material needed to print an object by 85 percent, research designed to create new, stronger materials, and a new ASTM standard for their mechanical properties.
A recent study finds that 3D printing is both cheaper and greener than traditional factory-based mass manufacturing and distribution. At least, it's true for making consumer plastic products on open-source, low-cost RepRap printers.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.