Higher voltage grids can\'t \"feed in\" from domestic networks...

[Commander Kinsey]

I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from domestic networks\" - referring to loads of solar in town A not being able to feed power to town B through the HV network. Is this true and why?

 

[Anthony William Sloman]

On Wednesday, April 12, 2023 at 1:17:09 PM UTC+10, Commander Kinsey wrote:
> I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from domestic networks\" - referring to loads of solar in town A not being able to feed power to town B through the HV network. Is this true and why?

Who knows? There\'s no reason why domestic solar panels couldn\'t feed power back into the local grid - and they certainly did in a lot of places.

The grid as a whole wasn\'t designed to let this happen, and presumably when roof-top solar got popular enough that the neighbours couldn\'t be relied on soak up the extra power being fed back in, the grid managers got nervous.

The grid is going to have to be reworked to cope with solar farms and wind farms delivering intermittent power from different places at different times, and allowing roof-top solar to feed in big-time is going to be one of the new design objectives.

--
Bill Sloman, Sydney

 

[Peeler]

On Wed, 12 Apr 2023 04:17:01 +0100, Birdbrain Macaw (aka \"Commander Kinsey\",
\"James Wilkinson\", \"Steven Wanker\",\"Bruce Farquar\", \"Fred Johnson, etc.),
the pathological resident idiot and attention whore of all the uk ngs,
blathered again:

<FLUSH the subnormal sociopathic trolling attention whore\'s latest
attention-baiting sick bullshit unread again>

--
damduck-egg@yahoo.co.uk about Birdbrain Macaw\'s (now \"Commander Kinsey\" LOL)
trolling:
\"He is a well known attention seeking troll and every reply you
make feeds him.
Starts many threads most of which die quick as on the UK groups anyone
with sense Kill filed him ages ago which is why he now cross posts to
the US groups for a new audience.
This thread was unusual in that it derived and continued without him
to a large extent and his silly questioning is an attempt to get
noticed again.\"
MID: <be195d5jh0hktj054mvfu7ef9ap854mjdb@4ax.com>

--
ItsJoanNotJoann addressing Birdbrain Macaw\'s (now \"Commander Kinsey\" LOL):
\"You\'re an annoying troll and I\'m done with you and your
stupidity.\"
MID: <e39a6a7f-9677-4e78-a866-0590fe5bbc38@googlegroups.com>

--
AndyW addressing Birdbrain:
\"Troll or idiot?...
You have been presented with a viewpoint with information, reasoning,
historical cases, citations and references to back it up and wilfully
ignore all going back to your idea which has no supporting information.\"
MID: <KaToA.263621$g93.262397@fx10.am4>

--
Phil Lee adressing Birdbrain Macaw:
\"You are too stupid to be wasting oxygen.\"
MID: <uv2u4clurscpat3g29l7aksbohsassufe2@4ax.com>

--
Phil Lee describing Birdbrain Macaw:
\"I\'ve never seen such misplaced pride in being a fucking moronic motorist.\"
MID: <j7fb6ct83igfd1g99rmu4gh9vf610ra3jk@4ax.com>

--
Tony944 addressing Birdbrain Macaw:
\"I seen and heard many people but you are on top of list being first class
ass hole jerk. ...You fit under unconditional Idiot and should be put in
mental institution.
MID: <VLCdnYC5HK1Z4S3FnZ2dnUU7-dPNnZ2d@giganews.com>

--
Pelican to Birdbrain Macaw:
\"Ok. I\'m persuaded . You are an idiot.\"
MID: <obru31$nao$3@dont-email.me>

--
DerbyDad03 addressing Birdbrain Macaw (now \"Commander Kinsey\" LOL):
\"Frigging Idiot. Get the hell out of my thread.\"
MID: <4d907253-b3b9-40d4-be4d-b32d453937e0@googlegroups.com>

--
Kerr Mudd-John about Birdbrain Macaw (now \"Commander Kinsey LOL):
\"It\'s like arguing with a demented frog.\"
MID: <op.yy3c02cqmsr2db@dell3100.workgroup>

--
Mr Pounder Esquire about Birdbrain Macaw (now \"Commander Kinsey\" LOL):
\"the piss poor delivery boy with no hot running water, 11 cats and
several parrots living in his hovel.\"
MID: <odqtgc$iug$1@dont-email.me>

--
Rob Morley about Birdbrain:
\"He\'s a perennial idiot\"
MID: <20170519215057.56a1f1d4@Mars>

--
JoeyDee to Birdbrain
\"I apologize for thinking you were a jerk. You\'re just someone with an IQ
lower than your age, and I accept that as a reason for your comments.\"
MID: <0001HW.1EE2D20300E7BECC700004A512CF@news.eternal-september.org>

--
Sam Plusnet about Birdbrain (now \"Commander Kinsey\" LOL):
\"He\'s just desperate to be noticed. Any attention will do, no matter how
negative it may be.\"
MID: <rOmdndd_O7u8iK7EnZ2dnUU78TGdnZ2d@brightview.co.uk>

--
thekmanrocks@gmail.com asking Birdbrain:
\"What, were you dropped on your head as a child?\"
MID: <58ddfad5-d9a5-4031-b91f-1850245a6ed9@googlegroups.com>

--
Christie addressing endlessly driveling Birdbrain Macaw (now \"Commander
Kinsey\" LOL):
\"What are you resurrecting that old post of mine for? It\'s from last
month some time. You\'re like a dog who\'s just dug up an old bone they
hid in the garden until they were ready to have another go at it.\"
MID: <59d8b0db.4113512@news.eternal-september.org>

--
Mr Pounder\'s fitting description of Birdbrain Macaw:
\"You are a well known fool, a tosser, a pillock, a stupid unemployable
sponging failure who will always live alone and will die alone. You will not
be missed.\"
MID: <orree6$on2$1@dont-email.me>

--
Richard to pathetic wanker Hucker:
\"You haven\'t bred?
Only useful thing you\'ve done in your pathetic existence.\"
MID: <orvctf$l5m$1@gioia.aioe.org>

--
clare@snyder.on.ca about Birdbrain (now \"Commander Kinsey\" LOL):
\"\"not the sharpest knife in the drawer\"\'s parents sure made a serious
mistake having him born alive -- A total waste of oxygen, food, space,
and bandwidth.\"
MID: <s5e9uclqpnabtehehg3d792tmll73se0g8@4ax.com>

--
Mr Pounder exposing sociopathic Birdbrain:
\"You will always be a lonely sociopath living in a shithole with no hot
running water with loads of stinking cats and a few parrots.\"
MID: <os5m1i$8m1$1@dont-email.me>

--
francis about Birdbrain (now \"Commander Kinsey\" LOL):
\"He seems to have a reputation as someone of limited intelligence\"
MID: <cf06cdd9-8bb8-469c-800a-0dfa4c2f9ffa@googlegroups.com>

--
Peter Moylan about Birdbrain (now \"Commander Kinsey\" LOL):
\"If people like JWS didn\'t exist, we would have to find some other way to
explain the concept of \"invincible ignorance\".\"
MID: <otofc8$tbg$2@dont-email.me>

--
Lewis about nym-shifting Birdbrain:
\"Typical narcissist troll, thinks his shit is so grand he has the right to
try to force it on everyone
MID: <slrnq16c27.1h4g.g.kreme@jaka.local>

 

[Fred Bloggs]

On Wednesday, April 12, 2023 at 1:54:04 AM UTC-4, Anthony William Sloman wrote:

On Wednesday, April 12, 2023 at 1:17:09 PM UTC+10, Commander Kinsey wrote:
I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from domestic networks\" - referring to loads of solar in town A not being able to feed power to town B through the HV network. Is this true and why?
Who knows? There\'s no reason why domestic solar panels couldn\'t feed power back into the local grid - and they certainly did in a lot of places.

The grid as a whole wasn\'t designed to let this happen, and presumably when roof-top solar got popular enough that the neighbours couldn\'t be relied on soak up the extra power being fed back in, the grid managers got nervous.

The grid is going to have to be reworked to cope with solar farms and wind farms delivering intermittent power from different places at different times, and allowing roof-top solar to feed in big-time is going to be one of the new design objectives.

Grid managers absolutely do not like the idea of it. There are quite a few drawbacks, some of which could permanently damage their equipment:

1) over voltage on the medium voltage (MV) feed

2) over heating of step down transformers due to excessive harmonic content AND loss of control over how much power is being fed through it

3) over working their local voltage regulation equipment, things like tap changers, or those servo controlled transformer coupling devices

4) disruption of their control over volt-ampere-reactance which adds to line losses over distance as well as causing out of spec power at customer loads

5) nuisance trips of protection devices ( probably harmonics again which derate the trip thresholds of breakers )

6) loss of control over time rates of power disconnection and restoration during disruptions

7) -> oo bunches of other things

All this power generation from outside the main energy provider infrastructure is collectively termed DEG- distributed energy generation. And the inverters that tie this energy into the grid are termed grid-tied inverters. Originally the functionality of the grid-tied inverters was minimal, things like disconnect upon detection of complete loss grid power. It became obvious that wasn\'t enough. The whole deal has evolved into smart grid-tied inverter technology, standards and regulations. The big improvement is the grid managers can now control the individual grid-tied inverters. Of course California is leading the way on the public regulation of this part of the industry, something called Rule 21 really upped their game on smart grid-tied inverter capability.

When you need an answer to something complex, look to the Germans, they\'ve been through this nightmare.

https://www.vde.com/en/fnn/topics/technical-connection-rules

Quite a pleasure to read material written with such clarity, as opposed to this junk coming out of DoE.

IEEE has a standard.

https://www.nrel.gov/grid/ieee-standard-1547/smart-inverters-power-systems.html

--
Bill Sloman, Sydney

 

[Brian Gaff]

I don\'t see why, as its not high voltage when its on the domestic network,
and one still needs to synchronise the 50 or 60Hz before you can do it in
any case. I think we had a long discussion on this not long ago.
Brian

--

--:
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
briang1@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
\"Commander Kinsey\" <CK1@nospam.com> wrote in message
newsp.129p2nbpmvhs6z@ryzen.home...

I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from
domestic networks\" - referring to loads of solar in town A not being able
to feed power to town B through the HV network. Is this true and why?

 

[Peeler]

On Thu, 13 Apr 2023 09:19:41 +0100, Brainless & Daft, the TV-watching and
pity-baiting senile \"blind\" mole, blathered again:

I don\'t see why, as its not high voltage when its on the domestic network,
and one still needs to synchronise the 50 or 60Hz before you can do it in
any case. I think we had a long discussion on this not long ago.
Brainless & Daft

You again, you useless disgusting pity-baiting \"blind\" mole? You
troll-feeding sick swine actually believe, like many handicapped morons,
because you are handicapped, you have more liberties than others? Well, I\'m
going to teach you a lesson about this, cretin! <BG>

 

[Ricky]

On Wednesday, April 12, 2023 at 1:54:04 AM UTC-4, Anthony William Sloman wrote:

On Wednesday, April 12, 2023 at 1:17:09 PM UTC+10, Commander Kinsey wrote:
I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from domestic networks\" - referring to loads of solar in town A not being able to feed power to town B through the HV network. Is this true and why?
Who knows? There\'s no reason why domestic solar panels couldn\'t feed power back into the local grid - and they certainly did in a lot of places.

The grid as a whole wasn\'t designed to let this happen, and presumably when roof-top solar got popular enough that the neighbours couldn\'t be relied on soak up the extra power being fed back in, the grid managers got nervous.

The grid is going to have to be reworked to cope with solar farms and wind farms delivering intermittent power from different places at different times, and allowing roof-top solar to feed in big-time is going to be one of the new design objectives.

Charge more cars!

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

 

[Ricky]

On Wednesday, April 12, 2023 at 10:49:18 AM UTC-4, Fred Bloggs wrote:

On Wednesday, April 12, 2023 at 1:54:04 AM UTC-4, Anthony William Sloman wrote:
On Wednesday, April 12, 2023 at 1:17:09 PM UTC+10, Commander Kinsey wrote:
I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from domestic networks\" - referring to loads of solar in town A not being able to feed power to town B through the HV network. Is this true and why?
Who knows? There\'s no reason why domestic solar panels couldn\'t feed power back into the local grid - and they certainly did in a lot of places.

The grid as a whole wasn\'t designed to let this happen, and presumably when roof-top solar got popular enough that the neighbours couldn\'t be relied on soak up the extra power being fed back in, the grid managers got nervous.

The grid is going to have to be reworked to cope with solar farms and wind farms delivering intermittent power from different places at different times, and allowing roof-top solar to feed in big-time is going to be one of the new design objectives.
Grid managers absolutely do not like the idea of it. There are quite a few drawbacks, some of which could permanently damage their equipment:

1) over voltage on the medium voltage (MV) feed

That\'s backwards. If the grid handles power flowing in all directions, that precludes over voltages. How is that different from a sudden loss of load? Either the grid is resilient, or it\'s not.


> 2) over heating of step down transformers due to excessive harmonic content AND loss of control over how much power is being fed through it

You think a transformer will over heat because instead of running power in one direction at 100 kW, it handles power in the other direction at 100 kW? Grid attached residential power sources have to meet requirements for all manner of important details. Harmonic content is one of them.


> 3) over working their local voltage regulation equipment, things like tap changers, or those servo controlled transformer coupling devices

Which is an engineering problem to be handled. It\'s not like this is going to be needed overnight. It just has to be managed.


> 4) disruption of their control over volt-ampere-reactance which adds to line losses over distance as well as causing out of spec power at customer loads

LOL There are specifications on all these things. The customer\'s equipment is not connected to the line, until it is approved by the utility.


> 5) nuisance trips of protection devices ( probably harmonics again which derate the trip thresholds of breakers )

Again, already regulated. If the power company has no idea of what they are doing, that\'s not our fault.


> 6) loss of control over time rates of power disconnection and restoration during disruptions

I believe power reconnections are already handled by this type of equipment..

> 7) -> oo bunches of other things

That must not be very important if you can\'t be bothered to list them.


> All this power generation from outside the main energy provider infrastructure is collectively termed DEG- distributed energy generation. And the inverters that tie this energy into the grid are termed grid-tied inverters. Originally the functionality of the grid-tied inverters was minimal, things like disconnect upon detection of complete loss grid power. It became obvious that wasn\'t enough. The whole deal has evolved into smart grid-tied inverter technology, standards and regulations.

Exactly. Why didn\'t you acknowledge this in the above list of concerns?

The big improvement is the grid managers can now control the individual grid-tied inverters. Of course California is leading the way on the public regulation of this part of the industry, something called Rule 21 really upped their game on smart grid-tied inverter capability.

When you need an answer to something complex, look to the Germans, they\'ve been through this nightmare.

https://www.vde.com/en/fnn/topics/technical-connection-rules

Quite a pleasure to read material written with such clarity, as opposed to this junk coming out of DoE.

IEEE has a standard.

https://www.nrel.gov/grid/ieee-standard-1547/smart-inverters-power-systems.html
You could move!

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

 

[Fred Bloggs]

On Thursday, April 13, 2023 at 2:07:03 PM UTC-4, Ricky wrote:

That\'s backwards. If the grid handles power flowing in all directions, that precludes over voltages. How is that different from a sudden loss of load? Either the grid is resilient, or it\'s not.
l
You could move!

You don\'t even know basic electricity.

Not worthy of discussion.

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

 

[Commander Kinsey]

It should work fine, I add 240V, it changes to 11kV and goes to the next town, or even up to 415kV on the pylons. All the transformers simply become stepup if there\'s more solar than usage in a town.

On Thu, 13 Apr 2023 09:19:41 +0100, Brian Gaff <brian1gaff@gmail.com> wrote:

I don\'t see why, as its not high voltage when its on the domestic network,
and one still needs to synchronise the 50 or 60Hz before you can do it in
any case. I think we had a long discussion on this not long ago.
Brian

 

[Anthony William Sloman]

On Friday, April 14, 2023 at 4:56:43 PM UTC+10, Commander Kinsey wrote:
> It should work fine, I add 240V, it changes to 11kV and goes to the next town, or even up to 415kV on the pylons. All the transformers simply become stepup if there\'s more solar than usage in a town.

The devil is in the details. If you end up with more current running along a cable than it was designed to handle, you lose the cable.

The high voltage cable between Tasmania and the Australian mainland was designed for 500MW. Some bright spark decided that it could take 615MW, and it stopped working and it took six months to fix it.

Since the current distribution system was designed around central generators, it may not work too well when you try to shunt currents between different bits of the periphery.

--
Bill Sloman, Sydney

 

[Fred Bloggs]

On Friday, April 14, 2023 at 3:20:03 AM UTC-4, Anthony William Sloman wrote:

On Friday, April 14, 2023 at 4:56:43 PM UTC+10, Commander Kinsey wrote:
It should work fine, I add 240V, it changes to 11kV and goes to the next town, or even up to 415kV on the pylons. All the transformers simply become stepup if there\'s more solar than usage in a town.
The devil is in the details. If you end up with more current running along a cable than it was designed to handle, you lose the cable.

The high voltage cable between Tasmania and the Australian mainland was designed for 500MW. Some bright spark decided that it could take 615MW, and it stopped working and it took six months to fix it.

Since the current distribution system was designed around central generators, it may not work too well when you try to shunt currents between different bits of the periphery.

I don\'t believe it\'s a mandate yet, but it soon will be that grid-tied inverters be certified to the latest smart inverter standard, that will have to run several thousand $. The net- metering which the power provider installs to measure customer provided power into the grid for purposes of reimbursement will simply shut off the customer feed it they don\'t have a smart inverter. Don\'t think for a minute they\'ll allow themselves to be vulnerable to damage by some mentally deficient like the OP.

--
Bill Sloman, Sydney

 

[Anthony William Sloman]

On Friday, April 14, 2023 at 11:20:19 PM UTC+10, Fred Bloggs wrote:

On Friday, April 14, 2023 at 3:20:03 AM UTC-4, Anthony William Sloman wrote:
On Friday, April 14, 2023 at 4:56:43 PM UTC+10, Commander Kinsey wrote:
It should work fine, I add 240V, it changes to 11kV and goes to the next town, or even up to 415kV on the pylons. All the transformers simply become stepup if there\'s more solar than usage in a town.
The devil is in the details. If you end up with more current running along a cable than it was designed to handle, you lose the cable.

The high voltage cable between Tasmania and the Australian mainland was designed for 500MW. Some bright spark decided that it could take 615MW, and it stopped working and it took six months to fix it.

Since the current distribution system was designed around central generators, it may not work too well when you try to shunt currents between different bits of the periphery.

I don\'t believe it\'s a mandate yet, but it soon will be that grid-tied inverters be certified to the latest smart inverter standard, that will have to run several thousand $. The net- metering which the power provider installs to measure customer provided power into the grid for purposes of reimbursement will simply shut off the customer feed it they don\'t have a smart inverter. Don\'t think for a minute they\'ll allow themselves to be vulnerable to damage by some mentally deficient like the OP.

No amount of smart metering will stop excess current burning out transmission cables.

Smart inverters that can synchronise a roof-top panel to the mains won\'t cost thousands of dollar if they manufactured in volume, and they will be eventually. Their main job will be stopping the roof-top generation from burning out the local transmission cables.

Keeping what they do feed in in synch with the mains isn\'t exactly difficult. The roof top panels generate DC and that has to be inverted to AC anyway.. Getting the timing right is dirt cheap, and the internet is there to handle any fancy signaling that might be needed.

Dickheads like Commander Kinsey won\'t have any local controls that they can fiddle with.

--
Bill Sloman, Sydney

 

[Ralph Mowery]

In article <a80f56e6-fd59-48c8-b562-6de26527141en@googlegroups.com>,
bill.sloman@ieee.org says...

I don\'t believe it\'s a mandate yet, but it soon will be that grid-tied inverters be certified to the latest smart inverter standard, that will have to run several thousand $. The net- metering which the power provider installs to measure customer provided power into the grid for purposes of reimbursement will simply shut off
the customer feed it they don\'t have a smart inverter. Don\'t think for a minute they\'ll allow themselves to be vulnerable to damage by some mentally deficient like the OP.

No amount of smart metering will stop excess current burning out transmission cables.

Smart inverters that can synchronise a roof-top panel to the mains won\'t cost thousands of dollar if they manufactured in volume, and they will be eventually. Their main job will be stopping the roof-top generation from burning out the local transmission cables.

Keeping what they do feed in in synch with the mains isn\'t exactly difficult. The roof top panels generate DC and that has to be inverted to AC anyway. Getting the timing right is dirt cheap, and the internet is there to handle any fancy signaling that might be needed.

Dickheads like Commander Kinsey won\'t have any local controls that they can fiddle with.

Here is a url tha friend has solar at his house. His meter is so that
it works both ways. I know of a church that has a roof full of solar
cells and feeds power back to the grid .This in the US.

 

[ke...@kjwdesigns.com]

On Friday, 14 April 2023 at 06:20:19 UTC-7, Fred Bloggs wrote:
....

I don\'t believe it\'s a mandate yet, but it soon will be that grid-tied inverters be certified to the latest smart inverter standard, that will have to run several thousand $. The net- metering which the power provider installs to measure customer provided power into the grid for purposes of reimbursement will simply shut off the customer feed it they don\'t have a smart inverter. Don\'t think for a minute they\'ll allow themselves to be vulnerable to damage by some mentally deficient like the OP.
....

Smart inverters are mandated in California and they do not cost \'thousands\' of dollars more than dumb ones.

My system uses an inverter per panel approach to mitigate shading and the inverters cost in the range of $150 each for 330 Watt versions.

It is not permitted to connect unapproved equipment to the grid, an inspection is required before the \"Permission to Operate\" is given.

kw

 

[boB]

On Wed, 12 Apr 2023 07:49:13 -0700 (PDT), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

On Wednesday, April 12, 2023 at 1:54:04?AM UTC-4, Anthony William Sloman wrote:
On Wednesday, April 12, 2023 at 1:17:09?PM UTC+10, Commander Kinsey wrote:
I saw this statement online: \"Higher voltage grids can\'t \"feed in\" from domestic networks\" - referring to loads of solar in town A not being able to feed power to town B through the HV network. Is this true and why?
Who knows? There\'s no reason why domestic solar panels couldn\'t feed power back into the local grid - and they certainly did in a lot of places.

The grid as a whole wasn\'t designed to let this happen, and presumably when roof-top solar got popular enough that the neighbours couldn\'t be relied on soak up the extra power being fed back in, the grid managers got nervous.

The grid is going to have to be reworked to cope with solar farms and wind farms delivering intermittent power from different places at different times, and allowing roof-top solar to feed in big-time is going to be one of the new design objectives.

Grid managers absolutely do not like the idea of it.

Is \"Grid Manager\" a real term ?

boB

There are quite a few drawbacks, some of which could permanently damage their equipment:

1) over voltage on the medium voltage (MV) feed

2) over heating of step down transformers due to excessive harmonic content AND loss of control over how much power is being fed through it

3) over working their local voltage regulation equipment, things like tap changers, or those servo controlled transformer coupling devices

4) disruption of their control over volt-ampere-reactance which adds to line losses over distance as well as causing out of spec power at customer loads

5) nuisance trips of protection devices ( probably harmonics again which derate the trip thresholds of breakers )

6) loss of control over time rates of power disconnection and restoration during disruptions

7) -> oo bunches of other things

All this power generation from outside the main energy provider infrastructure is collectively termed DEG- distributed energy generation. And the inverters that tie this energy into the grid are termed grid-tied inverters. Originally the functionality of the grid-tied inverters was minimal, things like disconnect upon detection of complete loss grid power. It became obvious that wasn\'t enough. The whole deal has evolved into smart grid-tied inverter technology, standards and regulations. The big improvement is the grid managers can now control the individual grid-tied inverters. Of course California is leading the way on the public regulation of this part of the industry, something called Rule 21 really upped their game on smart grid-tied inverter capability.

When you need an answer to something complex, look to the Germans, they\'ve been through this nightmare.

https://www.vde.com/en/fnn/topics/technical-connection-rules

Quite a pleasure to read material written with such clarity, as opposed to this junk coming out of DoE.

IEEE has a standard.

https://www.nrel.gov/grid/ieee-standard-1547/smart-inverters-power-systems.html




--
Bill Sloman, Sydney

 

[Anthony William Sloman]

On Saturday, April 15, 2023 at 3:18:18 AM UTC+10, Ralph Mowery wrote:

In article <a80f56e6-fd59-48c8...@googlegroups.com>,
bill....@ieee.org says...

I don\'t believe it\'s a mandate yet, but it soon will be that grid-tied inverters be certified to the latest smart inverter standard, that will have to run several thousand $. The net- metering which the power provider installs to measure customer provided power into the grid for purposes of reimbursement will simply shut off
the customer feed it they don\'t have a smart inverter. Don\'t think for a minute they\'ll allow themselves to be vulnerable to damage by some mentally deficient like the OP.

No amount of smart metering will stop excess current burning out transmission cables.

Smart inverters that can synchronise a roof-top panel to the mains won\'t cost thousands of dollar if they manufactured in volume, and they will be eventually. Their main job will be stopping the roof-top generation from burning out the local transmission cables.

Keeping what they do feed in in synch with the mains isn\'t exactly difficult. The roof top panels generate DC and that has to be inverted to AC anyway. Getting the timing right is dirt cheap, and the internet is there to handle any fancy signaling that might be needed.

Dickheads like Commander Kinsey won\'t have any local controls that they can fiddle with.

Here is a url tha friend has solar at his house. His meter is so that it works both ways. I know of a church that has a roof full of solar cells and feeds power back to the grid .This in the US.

Back before there were enough solar panels to generate enough power to create a detectable effect in the power distribution system.

Once there were enough solar panels to make a difference the people responsible for maintaining the power distribution system chose to avoid the problem by banning feed-in. It\'s not a long term solution, but buys them time to come up with a good long term solution (which shouldn\'t be difficult).

--
Bill Sloman, Sydney