Forgot your password?
typodupeerror

Comment Legal or illegal access? (Score 1) 52

As long as companies obtain legal access to material, I don't see the problem. Scraping? If a company puts material on the Internet, it can be seen. Scraping is not - and should never be - illegal. Torrenting is much the same: If the material is legally online, it doesn't matter how they accessed it. That assumes, of course, that they didn't seed any torrents.

What we have here, are lawyers looking for a payout.

Comment "They want things done quickly" (Score 3, Interesting) 185

Seriously? So which is faster: pressing a physical switch, or navigating through X menus on a touchscreen?

It's not just touchscreens, though. Our EV has the climate control functions on touch-sensitive "switches". Not part of the display, but nearly as bad, because there is zero tactile feedback. They are just part of a smooth panel, so you still have to look down to find the one you want.

Comment Re:Time period, not sugar (Score 1) 72

Yes, but the study seems to be comparing two groups where there is no reason to think anything else changed. The British diet didn't change in other ways after 1953, the only real difference was that sugar rationing had ended. At least, that would be the claim.

Nostalgia is all very well, but it was not a very healthy diet, lots of white bread, margarine, overcooked and limited number of vegetables. It was eaten in a more disciplined way - before or after 1953 children would not go to the larder or fridge and help themselves. Meals were eaten at mealtimes, with minimal snacking.

There are not very many people alive now who remember those days, but if you can find one and talk to them you get a picture of life which makes it plausible that the change in sugar rationing was a key variable. Other things mentioned, like activity, yes they were very different from now, but they did not change much in 1953, whereas sugar did.

Comment Re:A good test (Score 1) 209

As always no numbers, and argument on an engineering topic which is at the level of literary criticism.

to make the case you need to take a specific system where there is data available, and show that your argument applies there.

The most accessible in a few clicks is the UK. Go to www.gridwatch.co.uk for graphics. If you want the csv data free get it from www.gridwatch.templar.co.uk. Do the work and you will see that in winter there is peak demand of a bit under 50GW and that solar is basically non-existent from about 22GW faceplate. A function mainly of latitude with a contribution from weather. You will also see that there are in most winters periods of a week or ten days when wind generates less than 3GW from faceplate installed base of about 32GW. So what we have here is peak demand with peak low output from wind and solar.

In summer on the other hand you have peak solar and long days, but summer is not when you get peak demand.

What's the result of all this? Its that if you want to supply 50GW peak you have to have more than 50GW gas generation. But having it, you then only use it for part of the time, because part of the time you have wind and solar peaking. Something else also happens, at peak production, which does not coincide with peak demand and often in summer coincides with low demand, you have to turn off the wind.

The UK, if government plans work out, is going to end up with around 200GW of generating capacity to supply about 60GW of peak demand. And in operational terms, its constructing huge amounts of generating capacity off the north coast of Scotland or similar inhospitable places distant from demand. Then it constructs hugely expensive transmission links to bring this generated power to where its needed. It also builds gas to cover calms and nights.

So the result is, it pays people to install wind, then it pays them not to generate from it. Then it pays others to install gas and generate from it in the timesa when the guys its paying not to generate comply and turn off. The result of this is the highest electricity prices in the industrialized countries - and no, I am not spoon feeding you numbers, llook it up for yourself!. And it is only getting worse. The more wind they install, the more they have to pay to turn off, and however much wind they install the lows are still going to need gas to cover. The same thing applies to solar. It doesn't matter how much you install, at 5pm on a January evening, its going to be producing zero.

What you can see from the UK is that the attempt to move to 'renewables' is an attempt to do the impossible. Its trying to run a country's electricity supply with technologies that are guaranteed to have peaks of production which coincide with lows of demand, and lows of production that coincide with peaks of demand. It is not working, and as the proportion of wind and solar rises its going to get worse.

All this is happening with the background of the program to move to EVs and heat pumps. And they also have the fantasy of a huge data center industry. Right, with expensive and unreliable electricity? Because they have also just empowered the network operator to do rolling blackouts, which they call 'demand management'.

This is what happens when you have people with degrees in literature or media studies or some kind of vague social subjects enthusiastically trying to run the power generation for an industrial economy, and having no idea how to plan and no concept of engineering. They just keep saying that the wind and sun are free - as if that had any bearing. And they keep applauding whenever wind and solar reach a peak of a day or a week or month, not seeing that that is part of the problem and not part of any solution.

Get some numbers and do some work. And read the Royal Society's report on electricity storage, which blows the idea that batteries are the answer into the air.

Comment Re:This explains the mail I just received... (Score 1) 40

Youtube Music, for me at least, would be the reason. Spotify is fine, and I paid them for their family plan for years, but YtP is only a couple bucks more and you get ad-free videos on devices that can't (easily) use an ad-blocker: e.g. the android youtube app, roku, etc, and I don't mind paying for content when it's convenient and affordable. Interestingly, I also pay for netflix, though literally none of the youtube content I watch is from "influencers" or big youtube stars, and I'm allergic to in-video-ads so I doubt very much I'll be watching any of that on netflix.

Comment Chess Players vs Bridge Players? (Score 1) 70

You would expect the same thing with tournament chess players who spend hours working hard at trying to calculate and visualize move possibilities. The process has something in common with navigation. It does involve pattern recognition also, but there is a strong element of navigation.

An interesting comparison would be with tournament bridge players who calculate but probably don't visualize in the same way. (Can't say for sure as I have only played bridge a few times, years ago.)

The hypothesis would be that spatial navigation effort safeguards, and the prediction would be that chess players will have lower rates of Alzheimers than bridge players.

Comment Re:Question is, the value of wind generated power (Score 1) 280

I'm a citizen of a democracy, and vote on energy policy and the directors of it both locally and nationally and am in that role fully entitled to opinions on both. With or without a PhD.

And when I look at the data of wind generation in the UK what I see is blackouts coming towards the country. I do not see, and you do not explain, how a couple of GW of wind power generation during a calm is going to supply 10s of GW of demand. I do not see any plans in the UK for any measures that will fill the gap.

I am not alone. From the UK Telegraph today:
_________________________
Measures that came into effect this week give the National Energy System Operator (Neso) the authority to tackle electricity shortages with rolling power cuts around the country.
Each area would have its power switched off for three hours at a time. Neso would have to give just eight hoursâ(TM) notice to use the so-called demand control rotation protocol.
The new measures, first reported by The Guardian, are designed to bridge a gap between Nesoâ(TM)s current emergency powers and rolling-blackout plans that require government approval.
Currently, the UKâ(TM)s electricity supply emergency code, a national plan of energy rationing, can only be triggered by ministers and requires emergency legislation.
It is intended for prolonged national crises lasting more than 24 hours.
Neso, meanwhile, has the ability to disconnect up to 20pc of power at five minutesâ(TM) notice in the face of imminent system collapse, such as the nationwide shutdown seen in Spain in 2025.
Under the updated rules, Neso can activate rolling local blackouts without political approval.
___________________________

Comment Re:Question is, the value of wind generated power (Score 0) 280

This post is not flamebait. Its sincerely held rational opinions based on the facts of the UK experience, backed up by the data readily available from gridwatch or gridwatch.templar, I understand that people would like desperately for wind to be a viable technology for industrial societies, but the verdict is coming in from the gigantic experiment, and it just isn't.

What dooms it is intermittency. Well, and high costs too.

Just look at the results of the latest UK wind auctions, and look at the estimates for building transmission capacity from the north coast of Scotland (where the turbines are) to the Midlands and South where demand is. Look at constraint payments. Look at gridwatch to see what all this is delivering. Read the Royal Society report to see what the best UK minds can come up with regarding storage.

It isn't working and it isn't going to work. Folks, you need to get out of denial and look at the facts of experience!

Comment Re:Question is, the value of wind generated power (Score 0) 280

If they are trying to run the country on wind and solar, then on a winter evening when there is the usual blocking high and wind calm, and no solar generation, your UK friends will be trying to supply 45GW (or north of 60GW if they manage to convert everyone to EVs and heat pumps) while having only about 10GW generation. Assuming they manage to get around 100GW of wind installed, which is a real question also.

Don't believe me? Look at gridwatch. Lows from 30GW face plate wind can go as low as 0.5GW. Can be below 5GW for a week or ten days at a time.

And this is going to continue for a week or ten days, as it does almost every winter.

By day two they will not be discussing the difference between stocks and flows. They'll be discussing

Comment Re:Question is, the value of wind generated power (Score 0) 280

"CCGT capacity in the UK is sufficient to cover the rare times when there is zero wind."

No, it isn't. Just look at gridwatch. zero wind (or close to zero) is not a rare occurrence at all.

As to enough gas, the UK has about 30-35GW of gas depending exactly how you count. Peak UK demand is around 45GW.

The UK has twice this year been on the verge of blackouts. The last one, in June, it escaped by the skin of its teeth by importing on an urgent basis from France.

Need to read the UK news. Its impossible to run a country on intermittent generation technology. Its especially impossible to do so while raising demand by moving transport and heating to electricity, and while making no or inadequate provision to cover intermittency.

Comment Question is, the value of wind generated power (Score -1, Flamebait) 280

The question is, what is the value of wind generated power?

The UK has real time and archived data available to anyone who really wants to answer this question. The data shows, in summary, that wind generated power is not the same as conventional or nuclear generated power. You can see it clearly here in graphical form ( and from other sources, (www.gridwatch.templar.co.uk for instance) there's the raw data available in csv format. Here's the graphical version:

www.gridwatch.co.uk/wind

What happens is that much of the time peak wind generation coincides with low demand. This leads to constraint payments, when operators are paid as if they were generating but have to turn off supply. Then, there are regular calms, several a year, lasting a week or so, when peak demand coincides with low generation. When this happens gas has to be turned up to cover. The effect of these two factors is to lower capacity factor. It doesn't appear in the usual accounts of this, and it is never reckoned with in LCOE (Levelized Cost of Energy) calculations. LCOE is basically accounting fraud, comparable to stuffing the channel in manufacturing. It assumes that all power generated across the life of an installation is of equal value, but it is not.

How low is low generation? As you can see from gridwatch, 30GW faceplate of wind can fall well below 1GW for quite long periods.

This is not primarily about climate. Whether you think there is a climate crisis or not, the problem is that this is not a technology that is fit for the purpose of supplying a reliable electricity system to a modern industrial economy. The problem is there is no cost effective way of dealing with intermittency. In fact, without having total backup for the wind, there is no way at all.

The way to think about this is that what is being done with wind at the moment is not a transition. What is really happening is that a functioning conventional or nuclear system is required to pretty much fully cover peak demand. The buildout of wind is basically supplementing it. The case, if there is one, for doing this is not that a cheaper method of generation will replace conventional. Its that when the wind works and coincides with demand it can reduce fuel consumption of the primary generation network.

A further problem which the UK is experiencing is that wind power locations are far removed from demand centers. So they are having to build at great expense large transmission facilities from the north coast of Scotland - for which there is no other reason than the fact that wind farms have been built there.

Does it in fact do this? Is it cost effective to build (in the case of the UK) all those turbines off the north coast of Scotland, and all that transmission to get the power down to the Midlands and South, in order to save some fuel on your main conventional network?

I have seen it claimed, but have never seen any fully costed case showing that it is. And the fuel savings themselves? Maybe a lot less than you would expect, because to accommodate the wind power fluctuations you have to have rapid start gas, which is very fuel inefficient.

Some reading this will say 'batteries'. The Royal Society considered this, and dismissed it as absurdly expensive. It was so expensive and impractical that they thought a better solution would be to excavate and seal vast caverns and fill them with stored hydrogen. They did not specify where this was to come from. The fact that they thought this a more practical solution speaks volumes about the scale of the problem. The report goes into the question of intermittency in some depth, and draws attention of the observational fact that whole seasons can be low wind.

https://royalsociety.org/-/med...

What happens if you close your eyes and go ahead anyway with trying to transition to wind? The UK is finding out. Its had two cases this year of approaching large scale blackouts because of insufficient reserve to cover fluctuations. So far its been lucky, and there is some evidence that the narrowness of the escape was covered up. But the smart money is that one of these winters luck will run out, and they will then have to cold star at scalet and, if they have had to retire their gas by then, insufficient spinning reserve. And no, you will not get spinning reserve over the Euro interconnects, they don't do that.

There may be alternative technologies which will generate the levels of reliable power our economies need. But wind is not one of them. So on the whole the Administration is right. Its expensive to cancel it, but its a lot cheaper than going ahead with it. The UK is an early warning system. Its the canary. Or if you like, its like a bystander watching the lemmings and figuring out he does not want to join in this particular rush.

Comment Re:US created the modern rules based order (Score 2) 139

All of that is 100% objectively true, though you're missing the part where the good 'ol US of A has increasingly (since '45 and especially since '91) used military dominance, economic warfare and other covert operations as a tool to (wildly successfully) advance US interests, much like the other empires that came before it. It wasn't only good-will, trade, diplomacy and making the denizens of the "first world" rich, though that certainly all happened. Until fairly recently, virtually all citizens of the "first world" have been beneficiaries of all that to one extent or another, though currently it's almost entirely the largest corporations and the ultra-wealthy that control them that still directly benefit, though as you say, that's all going away. It will take a while for the whole world to transition away from the petrodollar and other forms of US-dominance, but it's already happening. There's no question that we (read: us-citizens and those of our "platinum-member" client states) will all be worse off for it, at least economically, including the very people that are tightening the fist to try and keep control, though it looks to me that most of the rest of the world will probably be better off once US dominance is a subject of history rather than current events, and ultimately (I hope) even though we'll be less rich in material terms, it's entirely possible that we'll be better off too in that we won't have the collective guilt and shame (how ever much suppressed) of causing so much of the suffering of the world's population just to be able to live in luxury and get away with whatever we want. In other words: we'll finally grow up.

Slashdot Top Deals

You have a massage (from the Swedish prime minister).

Working...