Australian Politics Forum - Tesla Batteries starting to do good in SA

Johnnie

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Re: Tesla Batteries starting to do good in SA
Reply #30 - Dec 11^th, 2018 at 11:46pm

Robot wrote on Dec 11^th, 2018 at 11:41pm:

Johnnie wrote on Dec 11^th, 2018 at 11:14pm:

Which batteries saved the state from blackouts and when.

Well, SA only has one battery. It's the one we've been talking about.

Oops, it was just the one time: 25 August 2018 when the Heywood interconnector failed. The frequency surge should have caused blackouts in SA but the battery provided instant frequency control.

Link, from SA Power Networks I hope.

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lee

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Re: Tesla Batteries starting to do good in SA
Reply #31 - Dec 11^th, 2018 at 11:46pm

Robot wrote on Dec 11^th, 2018 at 11:41pm:

Johnnie wrote on Dec 11^th, 2018 at 11:14pm:

Which batteries saved the state from blackouts and when.

Well, SA only has one battery. It's the one we've been talking about.

Oops, it was just the one time: 25 August 2018 when the Heywood interconnector failed. The frequency surge should have caused blackouts in SA but the battery provided instant frequency control.

You sure about that time line?

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Robot

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Re: Tesla Batteries starting to do good in SA
Reply #32 - Dec 11^th, 2018 at 11:51pm

lee wrote on Dec 11^th, 2018 at 11:38pm:

Robot wrote on Dec 11^th, 2018 at 11:23pm:

Feel free to reference the ABC article that says "Or because SA has about 767,500 households for about 3 minutes, providing shops and industry are isolated from the grid."

You know, the one you're "merely quoting".

You seem confused. That article I quoted said -

lee wrote on Dec 11^th, 2018 at 10:14pm:

"The Government will also have the right to tap the battery's full output to prevent load shedding blackouts if supply runs low this summer."

If "supply runs low", not "supply disappears entirely leaving the battery to power over 767,000 households".

lee wrote on Dec 11^th, 2018 at 11:38pm:

Now the fact that SA has over 767,000 households comes from...

I see. So you fabricated some nonsense about the battery supplying the entire state for three seconds.

So much for "merely quoting the ABC".

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Johnnie

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Re: Tesla Batteries starting to do good in SA
Reply #33 - Dec 11^th, 2018 at 11:57pm

Robot wrote on Dec 11^th, 2018 at 11:51pm:

lee wrote on Dec 11^th, 2018 at 11:38pm:

Robot wrote on Dec 11^th, 2018 at 11:23pm:

Feel free to reference the ABC article that says "Or because SA has about 767,500 households for about 3 minutes, providing shops and industry are isolated from the grid."

You know, the one you're "merely quoting".

You seem confused. That article I quoted said -

lee wrote on Dec 11^th, 2018 at 10:14pm:

"The Government will also have the right to tap the battery's full output to prevent load shedding blackouts if supply runs low this summer."

If "supply runs low", not "supply disappears entirely leaving the battery to power over 767,000 households".

lee wrote on Dec 11^th, 2018 at 11:38pm:

Now the fact that SA has over 767,000 households comes from...

I see. So you fabricated some nonsense about the battery supplying the entire state for three seconds.

So much for "merely quoting the ABC".

For 2 seconds maybe.

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Robot Senior Member Offline Conspirator Posts: 441 Engadine Maccas	Re: Tesla Batteries starting to do good in SA Reply #34 - Dec 12^th, 2018 at 12:00am "The battery can't power the whole state by itself, therefore it's a white elephant."
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lee

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Re: Tesla Batteries starting to do good in SA
Reply #35 - Dec 12^th, 2018 at 12:08am

Robot wrote on Dec 11^th, 2018 at 11:51pm:

If "supply runs low", not "supply disappears entirely leaving the battery to power over 767,000 households".

How does supply "run low"? Supply gets over drawn. That is too much current is drawn. Load shedding is the reduction of load on the grid. The only ways to reduce load on the grid are to cut connections. Hopefully hospitals last, then households, then business.

Robot wrote on Dec 11^th, 2018 at 11:51pm:

I see. So you fabricated some nonsense about the battery supplying the entire state for three seconds.

Not at all. The Tesla is supposed to be able to power 30,000 homes for about 1 hour. I will let you do the maths.

Robot wrote on Dec 11^th, 2018 at 11:51pm:

So much for "merely quoting the ABC".

So much for taking a lot of stuff that was not within quotes, as from the ABC. Grin

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Robot

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Re: Tesla Batteries starting to do good in SA
Reply #36 - Dec 12^th, 2018 at 12:15am

Johnnie wrote on Dec 11^th, 2018 at 11:46pm:

Robot wrote on Dec 11^th, 2018 at 11:41pm:

Johnnie wrote on Dec 11^th, 2018 at 11:14pm:

Which batteries saved the state from blackouts and when.

Well, SA only has one battery. It's the one we've been talking about.

Oops, it was just the one time: 25 August 2018 when the Heywood interconnector failed. The frequency surge should have caused blackouts in SA but the battery provided instant frequency control.

Link, from SA Power Networks I hope.

LOL. Not only does the forum prevent me from posting links, the idea that SA Power Networks has this info on their website is laughable.

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lee

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Re: Tesla Batteries starting to do good in SA
Reply #37 - Dec 12^th, 2018 at 12:41am

This is the only link mentioning Heywood about the 28 August.

"This next graph shows the confidence that the battery can provide the market operator going forward. The modelling done by Aurecon looks at what might happen if the Heywood inter-connector – the main link from Victoria and South Australia – were to trip with 200MW of imports."

https://reneweconomy.com.au/deep-dive-into-first-year-of-tesla-big-battery-at-ho...

dated 25Aug 2018

But there was this -

"Queensland and South Australia were exporting power across the interconnectors when they were simultaneously tripped on Saturday, forcing power to be cut to big industrial users and retail customers in NSW and Victoria."

https://stopthesethings.com/2018/09/03/blackout-nation-chaotic-delivery-of-wind-...

The batteries would not be exporting power.

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Robot

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Re: Tesla Batteries starting to do good in SA
Reply #38 - Dec 12^th, 2018 at 1:05am

lee wrote on Dec 12^th, 2018 at 12:41am:

This is the only link mentioning Heywood about the 28 August.

"This next graph shows the confidence that the battery can provide the market operator going forward. The modelling done by Aurecon looks at what might happen if the Heywood inter-connector – the main link from Victoria and South Australia – were to trip with 200MW of imports."

<link>

dated 25Aug 2018

But there was this -

"Queensland and South Australia were exporting power across the interconnectors when they were simultaneously tripped on Saturday, forcing power to be cut to big industrial users and retail customers in NSW and Victoria."

<link>

The batteries would not be exporting power.

See the AEMO's Preliminary Report: Queensland and South Australia system separation on 25 August 2018.

The QLD separation actually caused the frequency drop in SA, VIC and NSW. This caused load shedding (and blackouts) in NSW and Vic, but not SA because the battery provided instantaneous FCAS. SA was then islanded, which would have caused generation shedding (and blackouts) in SA except that the battery was able to immediately add load by charging.

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Robot Senior Member Offline Conspirator Posts: 441 Engadine Maccas	Re: Tesla Batteries starting to do good in SA Reply #39 - Dec 12^th, 2018 at 1:27am Apologies to the OP for derailing a thread about the virtual power plant by bringing up the Hornsdale battery.
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lee

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Re: Tesla Batteries starting to do good in SA
Reply #40 - Dec 12^th, 2018 at 11:26am

Robot wrote on Dec 12^th, 2018 at 1:05am:

The QLD separation actually caused the frequency drop in SA, VIC and NSW. This caused load shedding (and blackouts) in NSW and Vic, but not SA because the battery provided instantaneous FCAS. SA was then islanded, which would have caused generation shedding (and blackouts) in SA except that the battery was able to immediately add load by charging.

" add load by charging"? Charging is a drain on the system.

To add load would imply an overproduction of power and the battery was needed to load the grid down to prevent oversupply.

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Robot

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Re: Tesla Batteries starting to do good in SA
Reply #41 - Dec 12^th, 2018 at 12:04pm

lee wrote on Dec 12^th, 2018 at 11:26am:

Robot wrote on Dec 12^th, 2018 at 1:05am:

The QLD separation actually caused the frequency drop in SA, VIC and NSW. This caused load shedding (and blackouts) in NSW and Vic, but not SA because the battery provided instantaneous FCAS. SA was then islanded, which would have caused generation shedding (and blackouts) in SA except that the battery was able to immediately add load by charging.

" add load by charging"? Charging is a drain on the system.

To add load would imply an overproduction of power and the battery was needed to load the grid down to prevent oversupply.

Duh.

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lee Gold Member Online Australian Politics Posts: 16430 Gender:	Re: Tesla Batteries starting to do good in SA Reply #42 - Dec 12^th, 2018 at 12:33pm Robot wrote on Dec 12^th, 2018 at 12:04pm: Duh. So the battery didn't provide any power in SA it was used simply as a DC choke. So tell us how if the grid gets overloaded due to too many air conditioners how long will the battery last?
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Laugh till you cry

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Re: Tesla Batteries starting to do good in SA
Reply #43 - Dec 12^th, 2018 at 12:47pm

lee wrote on Dec 12^th, 2018 at 12:33pm:

Robot wrote on Dec 12^th, 2018 at 12:04pm:

Duh.

So the battery didn't provide any power in SA it was used simply as a DC choke. Wink

So tell us how if the grid gets overloaded due to too many air conditioners how long will the battery last?

lees ignorance is on display again. "DC choke" indeed.

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Please don't thank me. Effusive fawning and obeisance of disciples, mendicants, and foot-kissers embarrass me.

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Robot

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Re: Tesla Batteries starting to do good in SA
Reply #44 - Dec 12^th, 2018 at 12:48pm

lee wrote on Dec 12^th, 2018 at 12:33pm:

Robot wrote on Dec 12^th, 2018 at 12:04pm:

Duh.

So the battery didn't provide any power in SA it was used simply as a DC choke. Wink

Incorrect, and a bit weird.

lee wrote on Dec 12^th, 2018 at 12:33pm:

So tell us how if the grid gets overloaded due to too many air conditioners how long will the battery last?

LOL you have no idea how the grid works.

The grid doesn't get "overloaded due to too many air conditioners".

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