stevefitzpatrick, while AMO closely mimics CRUTEM4 on 4-yr scales, my plot was using a good approximation to bring out only periods of 30 years and longer, such as the much hyped stadium wave, and at those frequencies the detrended CRUTEM4 does actually lead AMO. The continued rise of CRUTEM4 at the end does not portend well for the AMO turning down any time soon.
Comment on Impact of AMO/PDO on U.S. regional surface temperatures by Jim D
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Comment on Intermittent grid storage by David L. Hagen
ristvan
California has mandated adding energy storage. Consequently:
<a href="http://www.utilitydive.com/news/duke-energy-partners-propose-groundbreaking-8b-wind-storage-transmission/312665/" / rel="nofollow">Duke Energy, partners propose groundbreaking $8B wind-storage-transmission project </a>
<blockquote>Pathfinder, Magnum Energy, and Dresser-Rand will build a $1.5 billion, 1,200 megawatt, 41 million cubic foot compressed air energy storage (CAES) facility in four salt formations in Utah to hold the electricity until the California agency wants it. . . .
Dresser’s experience in building the Alabama CAES facility is expected to be of value in this undertaking. Its key role in this project may partially explain why Siemens just agreed to pay $7.6 billion in cash to purchase it.</blockquote>
See Dresser-Rand investor summary<a>
<a href="https://www.google.com/search?q=isothermal+caes&rlz=1C1CHFX_enUS578US578&oq=isothermal+caes&aqs=chrome..69i57j0j69i60.6191j0j7&sourceid=chrome&es_sm=93&ie=UTF-8" rel="nofollow">Isothermal CAES are being developed for higher efficiency.</a>
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Comment on Impact of AMO/PDO on U.S. regional surface temperatures by micro6500
I don’t think the AMO is going to consult with the CRU to decide what to do.
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Comment on Intermittent grid storage by Mike Flynn
Eli Rabbett,
You quoted –
“Although not shown here, Sahara solar could easily be linked to Europe by the same technology.”
How hard could it be? All you would need is some Sahara solar. Then all you would need would be some wire. And then some customers, to pay for all the non existent electricity, coming out of the end of the non existent wires!
As to your comment about irrelevancy, maybe you might consider how relevant your comments are.
“The point of these interconnects is to balance load between a variety of green and greenish generation methods. ” seems to be a bit of PR to diminish the deficiencies in “green and greenish generation plans”.
Relevance to intermittent grid storage? How about contributing something a little more relevant than suggesting providing additional non existent solar power connected to a non existent grid, to take up the slack when demand exceeds “green and greenish” power supplies, including solar power.
Rudd has provided a good post. It would be nice if detractors like yourself could actually provide some facts, rather than Warmist diversionary tactics, and general frenzied hand waving.
Fossil fuels are free. Turning them into electricity, and getting it to your power outlet in useable form, is not. Even more costly are free fuels like sunlight and wind.
You remind of the guy who said “If I had some ham, I could make you a ham sandwich, if I had some bread”.
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Comment on Intermittent grid storage by sciguy54
Rud
Thanks for this fantastic post! By doing a comprehensive survey you have gone a long way toward bringing some sanity to this whole intermittent power debate. You did miss one distributed storage option, however, which I shall call the “high iron” approach.
Visualize a large tripod above each residence in California, each supporting a large pulley. The 20 KWH of required daily reserve would be stored in the form of a large iron ball suspended from the pulley by steel cable. Excess PV capacity would power an electric winch and raise the ball during daylight hours.
Now lets talk scale. Assuming 100 percent efficiency, one kilowatt powering the winch would be able to raise 100Kg of iron one meter per second. Thus 20 KWH could raise 2,000Kg to a height of 3,600 meters, or 72,000 Kg to 100 meters. So given a round-trip efficiency of about 80 percent, each home would simply need to hang an iron ball weighing about 80,000 Kg about 100 meters overhead. Every evening, with family tucked safely inside, the iron ball would descend slowly toward the roof, drive the winch in generation mode, and release all of that “free” energy. What could possibly go wrong with that?
Sleep well California!
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Comment on Intermittent grid storage by ristvan
Yeah, I left out potential energy storage in the form of a large thermal potential energy gradient. Isentropic. See rational above. I choose not to propogate pure BS. Where is the funded demo plant?
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Comment on Intermittent grid storage by ristvan
Thanks.
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Comment on Impact of AMO/PDO on U.S. regional surface temperatures by iiequalsexpipi
Fitting simple sinusoids to AMO and PDO is a mistake because a lot of what appears to be sinusoidal is actually autocorrelation + noise. Take the fourier transform of AMO and PDO and you will see that it has the classic profile of autocorrelation + noise (magnitude slowly decreases as frequency increases).
If you remove AR(1) autocorrelation from the AMO, then some peaks do remain in the fourier transform, but they aren’t as strong. For the PDO, it is basically all auto-correlation plus noise. If you look at reconstructions of AMO and PDO prior to 1850, you see that there is as clear discrepancy between what is expected based on a sinusoidal trend and what is observed.
There are of course other issues that people bring up such as the choice of the smoothing is arbitrary and anthropogenic global warming is unlikely to have just a linear trend (at least do parabolic).
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Comment on Intermittent grid storage by Jim D
Compressed air is being considered or perhaps already tested for wave/tidal power. There is also thermal storage, as used with concentrated solar, where you heat up a fluid to hundreds of degrees that can be used later to drive a steam turbine.
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Comment on Impact of AMO/PDO on U.S. regional surface temperatures by Jim D
The people who think AMO drives everything studiously ignore that CRUTEM4 leads it. What leads CRUTEM4, you may ask? The anthropogenic forcing.
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Comment on Intermittent grid storage by ristvan
I well know. For details, see my essay California Dreaming in ebook Blowing Smoke, foreword from Judith. Been there, done that. Years ago.
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Comment on Intermittent grid storage by ristvan
JD, yes. Molten salt thermal is a PRE generation storage option. Had it in the post. And in fhe previous post on CSP. Both PE and JC suggested taking out here for simplicity. What part of generated electricity did you not understand? I even italicized the emphasis on generated electricity. Fail.
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Comment on Intermittent grid storage by Mike Flynn
Jim D,
Even better, store the heat in compressed CO2. It is settled science that CO2 traps, stores, and accumulates heat. By compressing the CO2, it will hold even more, and by not releasing any heat, an infinite amount can be stored. This can then be utilised at will, days, weeks or years later.
Completely silly, isn’t it? About as silly as storing heat in the atmosphere, or oceans, to be released later!
Some people will believe anything.
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Comment on Intermittent grid storage by Jim D
It can be used post generation too. Imagine the electricity from a wind farm being used to heat up such a fluid instead. Anyway, CSP is just the leading example, and is already in use. Worth mentioning, because thermal storage has proven viable.
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Comment on Intermittent grid storage by Willard
> Fossil fuels are free.
As in “free speech” or in “free beer”?
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Comment on Impact of AMO/PDO on U.S. regional surface temperatures by micro6500
Didn’t we have this conversation last night?
The Oceans drive the land surface record, which as far as I’m concerned excludes CRUTEM4.
Willis has a good discussion on autocorrelation noise here
http://wattsupwiththat.com/2015/07/01/a-way-to-calculate-effective-n
Including the author of the paper mentioned even showing up to confirm his calculations.
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Comment on Intermittent grid storage by ristvan
Punny and funny, Sciguy. I admit did not cover it. A clean miss. Whatever.
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Comment on Intermittent grid storage by opluso
Our defense budget is bloated because we are told we must defend American “interests” rather than America.
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Comment on Intermittent grid storage by Ragnaar
Eli:
Interconnects substitute for batteries. Yes at a cost:
“…the $1.5 million-per-mile cost of a high-voltage line.”
http://usatoday30.usatoday.com/money/industries/energy/environment/2008-02-25-wind-power-transmission_N.htm
I suppose those that build interconnects need to assume the supplier will continue to do that for at least 30 years. If wind power eventually turns out to be a turkey the costs of the transmission lines may not be recovered.
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Comment on Intermittent grid storage by Mike Flynn
Willard,
I know you are only pretending to be stupid. Your point is?
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