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Fortescue Hydrogen Power (Read 1229 times)
issuevoter
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Re: Fortescue Hydrogen Power
Reply #15 - Oct 13th, 2021 at 10:43pm
 
Lisa Jones wrote on Oct 13th, 2021 at 8:37am:
Bobby. wrote on Oct 11th, 2021 at 2:05pm:
I assume he's done his sums -
he can make money out of it.


Forrest is another term for red flag.

End of story.


Right Oh!

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John_Taverner
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Re: Fortescue Hydrogen Power
Reply #16 - Oct 14th, 2021 at 7:47am
 
lee wrote on Oct 13th, 2021 at 4:38pm:
How long would 300Mw power the NEM?


Aha! You think that it's intended as a battery backup. Read one of your own cut and pasted replies if you want to know their true purpose. I'm not going to spoon feed you.
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Re: Fortescue Hydrogen Power
Reply #17 - Oct 14th, 2021 at 12:11pm
 
John_Taverner wrote on Oct 14th, 2021 at 7:47am:
You think that it's intended as a battery backup


Well that was the original intention in SA - to avoid blackouts.

"In response, the South Australian government called for expressions of interest to deploy grid-scale energy storage options with at least 100MW of capacity."

So if it is grid scale how long will it last? Wink

And in Vic.

"The Victorian Big Battery will store energy in times of high production and release energy in times of high demand, similar to how a battery on a home solar system works."

https://victorianbigbattery.com.au/faqs/

Now if demand exceeds supply because of generator fault - How long will the battery last?





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John_Taverner
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Re: Fortescue Hydrogen Power
Reply #18 - Oct 14th, 2021 at 1:32pm
 
Quote:
Now if demand exceeds supply because of generator fault - How long will the battery last?


As I said, it's not intended to be a battery back-up in case of failure. Nothing you quoted above actually says that.

Inertia - that's a good word. What does it mean in terms of electricity supply? (you just said it)
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Re: Fortescue Hydrogen Power
Reply #19 - Oct 14th, 2021 at 3:01pm
 
John_Taverner wrote on Oct 14th, 2021 at 1:32pm:
As I said, it's not intended to be a battery back-up in case of failure. Nothing you quoted above actually says that.


So what is it supposed to do in case of grid failure? WinkJohn_Taverner wrote on Oct 14th, 2021 at 1:32pm:
Inertia - that's a good word. What does it mean in terms of electricity supply? (you just said it)


Inertia - the ability to overcome resistance. Put a 1ohm load on a 12 volt battery, but switch it at a distance.  Wink

The battery has no inertia to help overcome the load. A physical generator however will try to overcome that load.

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Re: Fortescue Hydrogen Power
Reply #20 - Oct 14th, 2021 at 5:24pm
 
You have no idea what you're talking about.       

Grid inertia is a form of energy storage which addresses imbalances between supply and demand on electricity grids over very short time periods, typically on the order of fractions of a second to several of seconds.  Battery back-up is a totally different concept.  It's used in some industrial processes so that you can shut them down safely in the event of power disruptions. 

What you're describing is a short circuit.  1Ω ? Really?

You need an island mode power plant to handle longer term disruptions.   

I must stop replying to you. It's pointless.
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Re: Fortescue Hydrogen Power
Reply #21 - Oct 14th, 2021 at 6:35pm
 
John_Taverner wrote on Oct 14th, 2021 at 5:24pm:
You have no idea what you're talking about.


It seems you know less.

John_Taverner wrote on Oct 14th, 2021 at 5:24pm:
Grid inertia is a form of energy storage which addresses imbalances between supply and demand on electricity grids over very short time periods, typically on the order of fractions of a second to several of seconds.



"Inertia in power systems refers to the energy stored in large rotating generators and some industrial motors, which gives them the tendency to remain rotating. This stored energy can be particularly valuable when a large power plant fails, as it can temporarily make up for the power lost from the failed generator. This temporary response—which is typically available for a few seconds—allows the mechanical systems that control most power plants time to detect and respond to the failure. "

https://www.nrel.gov/news/program/2020/inertia-and-the-power-grid-a-guide-withou...

John_Taverner wrote on Oct 14th, 2021 at 5:24pm:
What you're describing is a short circuit.  1Ω ? Really?


That was an extreme example. 1Ω is not a short circuit. A short circuit is 0Ω. But the grid has an impedance, any disturbance of that impedance (or load) a generator tries to cope. It may not achieve it but it tries. Batteries cannot provide any inertia. They have no momentum which is what overcomes inertia.

John_Taverner wrote on Oct 14th, 2021 at 5:24pm:
I must stop replying to you. It's pointless.


It is as you refuse to learn. Wink
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« Last Edit: Oct 14th, 2021 at 6:52pm by lee »  
 
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