The batteries supply to the grid via an inverter, which can be turned on and off, and also adjusted to vary frequency and voltage output (automatically). Frequency and voltage are monitoring at many points in the system, via sensors and protective relaying, either can trigger the required response.
The resiliency of the power grid would be vastly improved if we put a battery pack (the size of a normal intermodal container) at each substation. These could act like your home UPS, fixing blackouts of a few minutes, when they occur. This also would make the grid much more able to use wind and solar sources, without so much need for standby diesel systems currently in place.
No, it would not be vastly improved since it is already very resilient in most places. Drastic improvement can happen where resiliency is an issue, which is not in very many places at present
...where it was expected to time shift a small amount of wind energy and provide network services and emergency back-up in case of a major problem.
No, the primary purpose of the battery was to help the grid ride through transients just as the one described, not for time shifting. Who is writing this stuff?
Even if the Senate Dems were to vote in lockstep, which is less than clear, this would have to pass in the House as well, then survive a presidential veto.
That veto might not be such a sure thing if there is enough bipartisan support. A law passed by congress is easier to for him to support than a regulatory requirement that can be changed a the whim of the next administration, which was the worst part of the previous net neutrality approach.
Typically in wire waves are simply 'RF' waves, not airwaves.
They are RF waves when passing in the air as well.
I agree with that, they are RF waves. The only reason the 'airwave' term came about was to describe those waves the travel through the air.
A carrier wave is a carrier wave regardless of medium... you totally missed my point. I did call a carrier wave an RF waves. So, its not clear what you are arguing.
For example: if RF travels from the air through the ground; we don't start calling them "ground waves".
That doesn't mean anything. We don't call waves over wires 'wire waves' either. But we do use the term airwaves specifically for those passing over air. Typically in wire waves are simply 'RF' waves, not airwaves. While passing through and antenna they are not airwaves. Carrier waves can refer to waves over various medium.
>> Light Beam Tech
(smacks forehead) (considers whether to be embarrassed to still be on SlashDot)
I wonder if they might also use light beam concentration and focusing technology surface technology to help reception. These would be kept in place using the latest in vertical support mounting technology.
I didn't know that 'airwaves' could travel over powerlines.
Then perhaps you don't have a clue about RF and should listen more than speaking.
When signals travel over copper, they are no longer 'airwaves'. That shouldn't be too hard a concept for you to understand. Airwaves travel through air. Perhaps you were trying too hard to sound smart.
I didn't know that 'airwaves' could travel over powerlines. Maybe just the high frequency ones described in the summary? That's a hell of a breakthrough.
Sometimes the decision to leave a company has consequences. Sometimes the decision to exercise options has consequences. One should think things through before making either decision.
The study also assume all miles driven can be done in the EV. It ignores the percentage of miles that are long trip miles, and the cost of renting and fueling a vehicle to make those trips. (the solution many suggest to range issues).
"but rather to provide fast response to prevent overloads and voltage/frequency support when there is a sudden event on the system" - this might become a problem of the past if power storage is distributed when more and more properties have battery storage (and EV) and are connected to a local microgrid
Its not a common problem now, most grid networks have enough paths and redundancy. There is no plan, as far as I know, for any country to divide up into micro grids, but different people apply different meaning to that word.
South Australia (and Australia generally) is a special case for renewable energy since it is a small continent, and sparsely inhabited.
This is a fix for a remote corner in Australia, the edge of the 5th largest population center (Adelaide*) separated from it by 100 miles and isolated by hundreds of miles of emptiness from anywhere else. There is little redundant/backup infrastructure, or all that many people.
More generally battery facilities shouldn't be needed in larger, more populous continents (North America, Eurasia).
Many folks may not fully appreciate the primary function of these batteries. It is not to levelize renewables, but rather to provide fast response to prevent overloads and voltage/frequency support when there is a sudden event on the system. That is because, as you say, they rely on a small number of lines and therefore don't have the networked/redundancy to maintain reliability. Adding new transmission lines for these long distances is expensive.
With the batteries, if there is a transient event on the grid the hope is they provide voltage and frequency support to ride it through without some overload on a major line. Now that it is operational, it will be interesting to see how well that works and how often that support is needed.
One important factor to note, when batteries need to be available for this type of support they must retain a certain percentage of capacity. They can also use them for renewable levelization or peaking support, but they don't want to discharge them too much or they may not be able to supply adequate voltage/frequency support when called upon. Full discharge/recharge cycles will likely not happen often.
The sea wall is not part of the plant design. It was there to prevent the plant, which was not designed to be hit by a tsunami, from being hit by one. I'm not sure how that is so hard to understand.
GE designed the plant, they did not design the sea wall or decide it's height.
No, it was not designed to be hit by a tsunami, which is why they built a wall trying to prevent from being hit by one. If was designed to be hit by a tsunami, they would not have built a wall.
It should never have been put there, with or without elevated tanks.
They used to publish big books with people's names, addresses, and phone numbers. They were distributed to criminals for free. . And most people wanted to be in it.
They can certain detect what you are using aux power, but there are plenty of legitimate reasons for that. You might have a powered cooler in the boot, an air compressor, a heater, a ceramic cooking hob...
But none of those normally uses the entire battery capacity, and they very well may be tracking power usage of each of those for load management improvements. A typical 12V power connection in a car is not going to supply the amps we are talking about, it would need to be a specially wired connection.
"In the 2015-2016 period, the highest export balances of ENTSO-E countries were seen in France (+65 TWh)
and Germany (+52 TWh). Italy was the biggest importer (46 TWh), followed by the United Kingdom (21 TWh).
Data calculated for the July 2015 to June 2016 period relative to previous 12 months"
Strange that every statistic shows something different:D
Germany is the leading exporter.
And France is alternating between an leading importer for a few years and then being a small exporter again.
Regarding CO2 emissions in electric power generation, obviously France looks much better there than Germany. No one doubted that.
My point simply was: a decent amount of electric power (roughly 10% of Frances usage) is produced by Germany.
You are just seeing what you want to see, not reality. Germany and France both import and export at different times. Any time either is importing, it could be claimed that they can't 'meet their power demand'. You fell for that, because you wanted to. France exports much more than it imports.
France has been the leading net exporter of electricity for years, Germany has been a close second. It is possible they produced slightly more this past year;
Slashdot Mirror
The batteries supply to the grid via an inverter, which can be turned on and off, and also adjusted to vary frequency and voltage output (automatically). Frequency and voltage are monitoring at many points in the system, via sensors and protective relaying, either can trigger the required response.
The resiliency of the power grid would be vastly improved if we put a battery pack (the size of a normal intermodal container) at each substation. These could act like your home UPS, fixing blackouts of a few minutes, when they occur. This also would make the grid much more able to use wind and solar sources, without so much need for standby diesel systems currently in place.
No, it would not be vastly improved since it is already very resilient in most places. Drastic improvement can happen where resiliency is an issue, which is not in very many places at present
...where it was expected to time shift a small amount of wind energy and provide network services and emergency back-up in case of a major problem.
No, the primary purpose of the battery was to help the grid ride through transients just as the one described, not for time shifting. Who is writing this stuff?
Even if the Senate Dems were to vote in lockstep, which is less than clear, this would have to pass in the House as well, then survive a presidential veto.
That veto might not be such a sure thing if there is enough bipartisan support. A law passed by congress is easier to for him to support than a regulatory requirement that can be changed a the whim of the next administration, which was the worst part of the previous net neutrality approach.
Just turn off data. The data transmissions are the most cancerous.
.......... prove me wrong!
Typically in wire waves are simply 'RF' waves, not airwaves.
They are RF waves when passing in the air as well.
I agree with that, they are RF waves. The only reason the 'airwave' term came about was to describe those waves the travel through the air.
A carrier wave is a carrier wave regardless of medium... you totally missed my point. I did call a carrier wave an RF waves. So, its not clear what you are arguing.
For example: if RF travels from the air through the ground; we don't start calling them "ground waves".
That doesn't mean anything. We don't call waves over wires 'wire waves' either. But we do use the term airwaves specifically for those passing over air. Typically in wire waves are simply 'RF' waves, not airwaves. While passing through and antenna they are not airwaves. Carrier waves can refer to waves over various medium.
The next contacts you get might be from the feds.
>> Light Beam Tech (smacks forehead) (considers whether to be embarrassed to still be on SlashDot)
I wonder if they might also use light beam concentration and focusing technology surface technology to help reception. These would be kept in place using the latest in vertical support mounting technology.
I didn't know that 'airwaves' could travel over powerlines.
Then perhaps you don't have a clue about RF and should listen more than speaking.
When signals travel over copper, they are no longer 'airwaves'. That shouldn't be too hard a concept for you to understand. Airwaves travel through air. Perhaps you were trying too hard to sound smart.
I didn't know that 'airwaves' could travel over powerlines. Maybe just the high frequency ones described in the summary? That's a hell of a breakthrough.
Sometimes the decision to leave a company has consequences. Sometimes the decision to exercise options has consequences. One should think things through before making either decision.
The study also assume all miles driven can be done in the EV. It ignores the percentage of miles that are long trip miles, and the cost of renting and fueling a vehicle to make those trips. (the solution many suggest to range issues).
It doesn't appear to me they included the cost of charger and installation.
"but rather to provide fast response to prevent overloads and voltage/frequency support when there is a sudden event on the system" - this might become a problem of the past if power storage is distributed when more and more properties have battery storage (and EV) and are connected to a local microgrid
Its not a common problem now, most grid networks have enough paths and redundancy. There is no plan, as far as I know, for any country to divide up into micro grids, but different people apply different meaning to that word.
South Australia (and Australia generally) is a special case for renewable energy since it is a small continent, and sparsely inhabited.
This is a fix for a remote corner in Australia, the edge of the 5th largest population center (Adelaide*) separated from it by 100 miles and isolated by hundreds of miles of emptiness from anywhere else. There is little redundant/backup infrastructure, or all that many people.
More generally battery facilities shouldn't be needed in larger, more populous continents (North America, Eurasia).
Many folks may not fully appreciate the primary function of these batteries. It is not to levelize renewables, but rather to provide fast response to prevent overloads and voltage/frequency support when there is a sudden event on the system. That is because, as you say, they rely on a small number of lines and therefore don't have the networked/redundancy to maintain reliability. Adding new transmission lines for these long distances is expensive.
With the batteries, if there is a transient event on the grid the hope is they provide voltage and frequency support to ride it through without some overload on a major line. Now that it is operational, it will be interesting to see how well that works and how often that support is needed.
One important factor to note, when batteries need to be available for this type of support they must retain a certain percentage of capacity. They can also use them for renewable levelization or peaking support, but they don't want to discharge them too much or they may not be able to supply adequate voltage/frequency support when called upon. Full discharge/recharge cycles will likely not happen often.
The sea wall is not part of the plant design. It was there to prevent the plant, which was not designed to be hit by a tsunami, from being hit by one. I'm not sure how that is so hard to understand.
GE designed the plant, they did not design the sea wall or decide it's height.
No, it was not designed to be hit by a tsunami, which is why they built a wall trying to prevent from being hit by one. If was designed to be hit by a tsunami, they would not have built a wall.
It should never have been put there, with or without elevated tanks.
MPGe is stupid. There, I said it.
We need a Glitter Regulatory Administration, laying down the rules and protecting us from our own over-glitterousness.
They used to publish big books with people's names, addresses, and phone numbers. They were distributed to criminals for free. . And most people wanted to be in it.
Times have changed.
They can certain detect what you are using aux power, but there are plenty of legitimate reasons for that. You might have a powered cooler in the boot, an air compressor, a heater, a ceramic cooking hob...
But none of those normally uses the entire battery capacity, and they very well may be tracking power usage of each of those for load management improvements. A typical 12V power connection in a car is not going to supply the amps we are talking about, it would need to be a specially wired connection.
Headline says Tesla Owners are mining bitcoins with T power, but article says one Tesla Owner claims he did it.
How would you wire it up? Can Tesla diagnostics tell if you drain battery for something other than driving?
And there is this;
"In the 2015-2016 period, the highest export balances of ENTSO-E countries were seen in France (+65 TWh) and Germany (+52 TWh). Italy was the biggest importer (46 TWh), followed by the United Kingdom (21 TWh). Data calculated for the July 2015 to June 2016 period relative to previous 12 months"
http://bilan-electrique-2016.r...
Strange that every statistic shows something different :D
Germany is the leading exporter.
And France is alternating between an leading importer for a few years and then being a small exporter again.
Regarding CO2 emissions in electric power generation, obviously France looks much better there than Germany. No one doubted that.
My point simply was: a decent amount of electric power (roughly 10% of Frances usage) is produced by Germany.
This is focused more on 2016 and more a news than a "report": http://energypost.eu/france-ca...
This is focused on 2014 and an energy report:
You are just seeing what you want to see, not reality. Germany and France both import and export at different times. Any time either is importing, it could be claimed that they can't 'meet their power demand'. You fell for that, because you wanted to. France exports much more than it imports.
France has been the leading net exporter of electricity for years, Germany has been a close second. It is possible they produced slightly more this past year;
https://www.google.com/url?sa=...
https://www.google.com/url?sa=...