This battery was built as a knee-jerk political response to the event.
Being knee-jerk doesn't make it wrong. The battery is designed in part to improve stability and stability is precisely what was impacted when the transmission line went down.
Almost. There are several suppliers that operate on a 6 second timeline. Whether the battery has "saved" the grid at any point is entirely debatable. What is clear is that the grid has been more stable as a result of the battery being in operation, but so far it has yet to get near the point where it would cause a blackout.
You're absolutely right about this. Significant differences don't work which is why generators will trip on significant under frequency. The rate of the shortfall of available power will determine if a generator trips on overload or under frequency. The inertia in the system is what causes frequency events to be the most common problem in cascading failures (such as a major generator going offline).
If a big unit trips, the frequency starts dropping. Suppliers come online to try and push the frequency back up. The 6 second market responds quickly with lots of small generators. If the frequency hasn't corrected or continues to fall within 60 seconds a second market with a larger generators will have kicked in. If the frequency hasn't corrected or continues to fall within 5 minutes a third market with a even larger generators will have kicked in. If the frequency hasn't corrected by then you're going to start seeing generators go out on overload.
If at any point during this the frequency drops below a critical value you'll start seeing cascading failures due to under frequency. But chances are before tripping on under frequency there will likely be major load shedding to try and keep the power system going (cutting off some customers is better than losing power to all of them).
Consider that another generator in the system was still running at 50 Hz.
Why are you considering that? A 50Hz generator on a 49.8Hz system will cause that generator to draw a huge amount of power. It will either help pull the grid back up (if it has enough power) or it will be pulled down with the grid (if it doesn't have enough power).
Also there's grid inertia. This stuff doesn't happen instantly. Look at the graph linked you'll see on a sudden disconnect of 560MW it still took about a minute for the frequency to come down to that level.
Responding to a frequency drop doesn't really work, you must remain exactly in phase with the received frequency or it looks like a short-circuit to the distribution system. If the incoming frequency changes, the best thing you can do is probably disconnect.
That isn't even remotely true. Responding to frequency drops is precisely what peaking plants do. You only disconnect if you're out of the suitable frequency range. Frequency is exactly how the grid power flows around. A frequency drop is the result of an overloaded grid, i.e. some coal turbine somewhere is desperately unable to keep pushing the required power and hoping someone else kicks on to help. On underfrequency the best thing you can do is kick in and start pushing power onto the grid. That is likely to push the frequency back to where it's supposed to be. If you disconnect during an underfrequency event you'll make that even worse and trigger a cascading blackout.
There is an entire market for stabilising the grid in Australia called the "Frequency Control and Ancillary Services" market (FCAS). Actually it's 8 markets. 30MW of of this Tesla battery is dedicated to 2 of those market (6 second responses to frequency deviation).
We covered previously how well the battery responded to the Loy Yang trip. As soon as the frequency deviated by 0.2Hz the Tesla battery crammed 8MW into the grid to stabilise it while the slower frequency controllers (gas peaking plants) responded. http://reneweconomy.com.au/tes... Note from the graph the frequency stopped dropping instantly, slowly started raising (the 6 second market responding), and massively correcting 6 minutes later (the 6 minute market responding).
The AEMO is discussing whether to create it's own regulatory market for batteries which can respond far faster than 6 seconds.
I don't think I've ever seen billion written out as MMM or trillion written out as MMMM.
Yeah that doesn't happen. Specifically billion is often written out in terms of millions due to the unit of billion being ambiguous as either 1000 million or million million.
I've never seen one thousand written out as M (usually k).
Now you've just shown yourself to not do anything in financial circles. M is very commonly used to denote thousands. Though style guides from financial papers agree that the readership may find it confusing and recommend writting it in full, e.g. $100,000.
There's no better/cheaper/more effective device for grid stabilization than battery storage, today.
That depends on the technical requirements. Stabilising a grid requires a lot of different actions to happen at defined time intervals with a defined output. Battery backup is only one small component of grid stabilisation that operates on the fastest acting and most volatile areas. That doesn't mean it's better than gas turbines, just that it serves a different purpose.
Batteries by themselves attempting to prevent large brownouts would be prohibitively expensive. This is a great example of adding a battery to an energy mix that desperately needed it.
teach Microsoft what "Out of Band" means? Hint--it doesn't mean "unscheduled."
Actually it does. You're probably confusing it with one of the uses of the phrase which requires an additional word to define it e.g. "Out of band management" or "out of band signalling" or "out of band data".
Being "out of band" simply means you're not in the normal fixed frequency.
Being on Windows 10 and knowing from the very start that this was controllable from a registry setting (which I used to disable this junk) I fail to see your poorly made point.
If it's so easy to disable the protection in a Microsoft patch, I'm sure that anyone who wants to exploit the microcode bug could also disable the protection.
If someone has access to write sensitive registry values, reboot and continue to have access then exploiting Spectre and Meltdown is the LEAST of your problems.
anyone with an internet connection can look at satellite photos
The world is a big place and looking at it 1sqkm at a time really is a barrier in itself. Thankfully we now have some exact co-ordinates to get us started.
No. To fix the "systemd" problem you'll need to bite the bullet and actually RTFM. Actually knowing what you're doing will solve pretty much all your problems.
As a person currently living in Europe and who frequently travels to the USA I can only say my experience is the exact opposite. But then you're using "Europe" which clearly shows how little you know about this side of the world. "Europe" is a big place with many different sub cultures with very VERY different approaches to people. Some "europeans" are incredibly rude and keep to themselves. Other's you have to be careful not to greet them too enthusiastically otherwise you may just be invited to dinner as virtually a member of the family.
As for east Asia, now what are you talking about? The Asian cultures are professionally very polite, but in terms of greeting people in the street and striking up general conversation they are down far below Europe and definely below that of the USA*.
That said regardless if you define politeness as using your Ps and Qs, or if you define politeness as willing to jump up and say "how are you doing" to every single passer by in the street, in both regards the USA has very little going for it compared to many countries, especially the colonies or former colonies of the UK.
However there is a way to get a bad opinion of the EU: Be a tourist and go to major tourist destinations. Regardless of how nice or hospitable a European nation is, if you're not local and you find yourself in Paris, Amsterdam, Barcelona, or Venice expect the locals to treat you as expected given how many tourist destinations are being absolutely destroyed for this reason.
*See what I did? I classified 370million people all at the same time. The reality of the USA is the same as that of the EU. There are places where "Hi" will net you a "Fuckoff" in the USA. There's also places where if you say it you run the risk of having to sit through a person's life story.
Greetings from the Netherlands. A place where people are definitely not as polite as in the USA, but then I'm only talking about 2.2% of the population of Europe.
... is the West's reaction/response to what Erdogan has done in Turkey.
Nothing.
Not quite. Firstly what is going on here is the application of the democratic laws of the country within that country. What the USA or the West thinks of Erdogan is irrelevant given the laws were passed in a democratic way and are properly being ruled on by the courts of the country. We may disagree with it, but you'll likely find that a lot of Turks don't. That's the thing about democracy, it's not global, it is local. Frankly I'm surprised we don't sanction the USA for not doing something about their gun problem, but that's just it: a local issue for the local democracy.
Just because a country has a lot of people and is a democracy doesn't automatically mean they think like everyone else.
Now speaking of "nothing". The international views of the laws of Turkey, their application, and that recent referendum have effectively all but ended the hopes of Turkish ascension to the EU, something which they have been working on for a good portion of my own lifetime. So to say that nothing is happening at all is not true.
But what do you propose? The USA come in and disagree with the laws of a sovereign nation as they are executed by a democratically elected government? Every time you've done that in the past it has resulted in instability if not outright war.
This really looks like 'oh, while trying to send the Jews into concentration camps, we made some mistakes and sent there some non-Jews'...
That's pretty much exactly what it is.
In other news Erdogan is complaining that the Turkish ascension to the EU is taking too long while he's busy breaking the fundamental reason the EU was created in the first place.
Hieroglyphics are still okay. The problem here is the very first example in the article shows a complete lack of hieroglyphics. As in... how the fuck are you supposed to maximise or minimise the Chrome window? Or do you just have to accept wherever the hell Gnome put it?
Windows 10 is trying to change the styles, too, and all you get is half the applications use one look, half use the other: "Here's a slick new settings interface! Oh... you want to actually do something Useful? Here's the old one." Most users don't care.
Nothing like Windows 10 at all. For the mess of "styles" in Windows 10 at least the fundamental usability items are still consistent. There's still a title bar, minimise, maximise and close buttons. What the Gnome developers are proposing is to leave everything to the developer. Tell me now, how are you going to minimise this fancy new Chromium window: https://wiki.gnome.org/Initiat...
have you ever tried to reposition a firefox or chrome window that is full of tabs?
That's not actually too much of a problem. Still plenty of space to grab at the top. What is a problem is doing common actions. Take a look at his examples and tell me if you can figure out how to maximise or minimise that Chromium window.
Slashdot Mirror
Talk about a non-story. Vendors told of problems that only vendors can fix before non-vendors involved.
News at ... fuck it, this is not news. It belongs in the Daily Flail.
Actually those large consumers have contracts that cause them to pay the spot price. They are often happy to disconnect themselves at times.
This battery was built as a knee-jerk political response to the event.
Being knee-jerk doesn't make it wrong. The battery is designed in part to improve stability and stability is precisely what was impacted when the transmission line went down.
Almost. There are several suppliers that operate on a 6 second timeline. Whether the battery has "saved" the grid at any point is entirely debatable. What is clear is that the grid has been more stable as a result of the battery being in operation, but so far it has yet to get near the point where it would cause a blackout.
You're absolutely right about this. Significant differences don't work which is why generators will trip on significant under frequency. The rate of the shortfall of available power will determine if a generator trips on overload or under frequency. The inertia in the system is what causes frequency events to be the most common problem in cascading failures (such as a major generator going offline).
If a big unit trips, the frequency starts dropping.
Suppliers come online to try and push the frequency back up. The 6 second market responds quickly with lots of small generators.
If the frequency hasn't corrected or continues to fall within 60 seconds a second market with a larger generators will have kicked in.
If the frequency hasn't corrected or continues to fall within 5 minutes a third market with a even larger generators will have kicked in.
If the frequency hasn't corrected by then you're going to start seeing generators go out on overload.
If at any point during this the frequency drops below a critical value you'll start seeing cascading failures due to under frequency. But chances are before tripping on under frequency there will likely be major load shedding to try and keep the power system going (cutting off some customers is better than losing power to all of them).
Consider that another generator in the system was still running at 50 Hz.
Why are you considering that? A 50Hz generator on a 49.8Hz system will cause that generator to draw a huge amount of power. It will either help pull the grid back up (if it has enough power) or it will be pulled down with the grid (if it doesn't have enough power).
Also there's grid inertia. This stuff doesn't happen instantly. Look at the graph linked you'll see on a sudden disconnect of 560MW it still took about a minute for the frequency to come down to that level.
Responding to a frequency drop doesn't really work, you must remain exactly in phase with the received frequency or it looks like a short-circuit to the distribution system. If the incoming frequency changes, the best thing you can do is probably disconnect.
That isn't even remotely true. Responding to frequency drops is precisely what peaking plants do. You only disconnect if you're out of the suitable frequency range. Frequency is exactly how the grid power flows around. A frequency drop is the result of an overloaded grid, i.e. some coal turbine somewhere is desperately unable to keep pushing the required power and hoping someone else kicks on to help. On underfrequency the best thing you can do is kick in and start pushing power onto the grid. That is likely to push the frequency back to where it's supposed to be. If you disconnect during an underfrequency event you'll make that even worse and trigger a cascading blackout.
There is an entire market for stabilising the grid in Australia called the "Frequency Control and Ancillary Services" market (FCAS). Actually it's 8 markets. 30MW of of this Tesla battery is dedicated to 2 of those market (6 second responses to frequency deviation).
We covered previously how well the battery responded to the Loy Yang trip. As soon as the frequency deviated by 0.2Hz the Tesla battery crammed 8MW into the grid to stabilise it while the slower frequency controllers (gas peaking plants) responded. http://reneweconomy.com.au/tes...
Note from the graph the frequency stopped dropping instantly, slowly started raising (the 6 second market responding), and massively correcting 6 minutes later (the 6 minute market responding).
The AEMO is discussing whether to create it's own regulatory market for batteries which can respond far faster than 6 seconds.
Hi, European here. That isn't even remotely the case. We use MM = million and M = thousand constantly in the financial sector.
I don't think I've ever seen billion written out as MMM or trillion written out as MMMM.
Yeah that doesn't happen. Specifically billion is often written out in terms of millions due to the unit of billion being ambiguous as either 1000 million or million million.
I've never seen one thousand written out as M (usually k).
Now you've just shown yourself to not do anything in financial circles. M is very commonly used to denote thousands. Though style guides from financial papers agree that the readership may find it confusing and recommend writting it in full, e.g. $100,000.
There's no better/cheaper/more effective device for grid stabilization than battery storage, today.
That depends on the technical requirements. Stabilising a grid requires a lot of different actions to happen at defined time intervals with a defined output. Battery backup is only one small component of grid stabilisation that operates on the fastest acting and most volatile areas. That doesn't mean it's better than gas turbines, just that it serves a different purpose.
Batteries by themselves attempting to prevent large brownouts would be prohibitively expensive. This is a great example of adding a battery to an energy mix that desperately needed it.
teach Microsoft what "Out of Band" means? Hint--it doesn't mean "unscheduled."
Actually it does. You're probably confusing it with one of the uses of the phrase which requires an additional word to define it e.g. "Out of band management" or "out of band signalling" or "out of band data".
Being "out of band" simply means you're not in the normal fixed frequency.
Being on Windows 10 and knowing from the very start that this was controllable from a registry setting (which I used to disable this junk) I fail to see your poorly made point.
If it's so easy to disable the protection in a Microsoft patch, I'm sure that anyone who wants to exploit the microcode bug could also disable the protection.
If someone has access to write sensitive registry values, reboot and continue to have access then exploiting Spectre and Meltdown is the LEAST of your problems.
anyone with an internet connection can look at satellite photos
The world is a big place and looking at it 1sqkm at a time really is a barrier in itself. Thankfully we now have some exact co-ordinates to get us started.
A Trump story without a mention of Russia hacking something? Come on Slashdot!
There was a mention of Russia hacking Trump, but the Russians hacked Slashdot to get rid of it.
How is a warrant for arrest for not showing up in court unconscionable?
Has the systemd problem been fixed?
No. To fix the "systemd" problem you'll need to bite the bullet and actually RTFM. Actually knowing what you're doing will solve pretty much all your problems.
As a person currently living in Europe and who frequently travels to the USA I can only say my experience is the exact opposite. But then you're using "Europe" which clearly shows how little you know about this side of the world. "Europe" is a big place with many different sub cultures with very VERY different approaches to people. Some "europeans" are incredibly rude and keep to themselves. Other's you have to be careful not to greet them too enthusiastically otherwise you may just be invited to dinner as virtually a member of the family.
As for east Asia, now what are you talking about? The Asian cultures are professionally very polite, but in terms of greeting people in the street and striking up general conversation they are down far below Europe and definely below that of the USA*.
That said regardless if you define politeness as using your Ps and Qs, or if you define politeness as willing to jump up and say "how are you doing" to every single passer by in the street, in both regards the USA has very little going for it compared to many countries, especially the colonies or former colonies of the UK.
However there is a way to get a bad opinion of the EU: Be a tourist and go to major tourist destinations. Regardless of how nice or hospitable a European nation is, if you're not local and you find yourself in Paris, Amsterdam, Barcelona, or Venice expect the locals to treat you as expected given how many tourist destinations are being absolutely destroyed for this reason.
*See what I did? I classified 370million people all at the same time. The reality of the USA is the same as that of the EU. There are places where "Hi" will net you a "Fuckoff" in the USA. There's also places where if you say it you run the risk of having to sit through a person's life story.
Greetings from the Netherlands. A place where people are definitely not as polite as in the USA, but then I'm only talking about 2.2% of the population of Europe.
proves that a revolution is needed
Actually it proves that a revolution is in progress.
... is the West's reaction/response to what Erdogan has done in Turkey.
Nothing.
Not quite. Firstly what is going on here is the application of the democratic laws of the country within that country. What the USA or the West thinks of Erdogan is irrelevant given the laws were passed in a democratic way and are properly being ruled on by the courts of the country. We may disagree with it, but you'll likely find that a lot of Turks don't. That's the thing about democracy, it's not global, it is local. Frankly I'm surprised we don't sanction the USA for not doing something about their gun problem, but that's just it: a local issue for the local democracy.
Just because a country has a lot of people and is a democracy doesn't automatically mean they think like everyone else.
Now speaking of "nothing". The international views of the laws of Turkey, their application, and that recent referendum have effectively all but ended the hopes of Turkish ascension to the EU, something which they have been working on for a good portion of my own lifetime. So to say that nothing is happening at all is not true.
But what do you propose? The USA come in and disagree with the laws of a sovereign nation as they are executed by a democratically elected government? Every time you've done that in the past it has resulted in instability if not outright war.
This really looks like 'oh, while trying to send the Jews into concentration camps, we made some mistakes and sent there some non-Jews'...
That's pretty much exactly what it is.
In other news Erdogan is complaining that the Turkish ascension to the EU is taking too long while he's busy breaking the fundamental reason the EU was created in the first place.
Hieroglyphics are still okay. The problem here is the very first example in the article shows a complete lack of hieroglyphics. As in ... how the fuck are you supposed to maximise or minimise the Chrome window? Or do you just have to accept wherever the hell Gnome put it?
Windows 10 is trying to change the styles, too, and all you get is half the applications use one look, half use the other: "Here's a slick new settings interface! Oh... you want to actually do something Useful? Here's the old one." Most users don't care.
Nothing like Windows 10 at all. For the mess of "styles" in Windows 10 at least the fundamental usability items are still consistent. There's still a title bar, minimise, maximise and close buttons. What the Gnome developers are proposing is to leave everything to the developer. Tell me now, how are you going to minimise this fancy new Chromium window: https://wiki.gnome.org/Initiat...
have you ever tried to reposition a firefox or chrome window that is full of tabs?
That's not actually too much of a problem. Still plenty of space to grab at the top. What is a problem is doing common actions. Take a look at his examples and tell me if you can figure out how to maximise or minimise that Chromium window.
And the chance that I'll have any kind of consistent interface, when thousands of app-writers are rolling their own? ZERO!
Have you had a look at the examples? Take a look now and tell me how I'm supposed to minimise or maximise the Chromium example.
Thanks, but fuck off.