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South Australia Energy Experiment Continued.... #4362723
03/25/17 05:26 AM
03/25/17 05:26 AM
Joined: Dec 2002
Posts: 40,890
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,890
'Stralia

Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4362847
03/25/17 09:14 AM
03/25/17 09:14 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Interesting article Shannow. I've started (loosely following the Aussie renewable power story. This sounds like early-on teething pains and will be taken care of eventually. After watching the pumped water explanation posted on here awhile back, that seems the best option, though isn't SA extremely dry?


Thick vs Thin test: 15k / 43k miles complete
Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4362918
03/25/17 10:20 AM
03/25/17 10:20 AM
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
Nukes - build low pressure nukes laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4362962
03/25/17 11:13 AM
03/25/17 11:13 AM
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,667
Columbus,Nebraska
250 MW of gas fired generation sitting idle? frown

Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4363175
03/25/17 04:34 PM
03/25/17 04:34 PM
Joined: Dec 2013
Posts: 3,686
Massachusetts
turtlevette Offline
turtlevette  Offline
Joined: Dec 2013
Posts: 3,686
Massachusetts
5 blackouts in 2 years and they just mention households. The big impacts are when you dump big huge manufacturers costing then a lot of money in the form of damaged product. For a house the only problem is resetting some clocks and most are battery backed these days. Important industrials have UPS units and diesels anyway. Weyeth pharmaceutical paid me $3000 a day to just stand around in case something happened when they were testing their diesels. The big boys have it covered.

Option 7. just live with it.

I mean, how many hundreds of millions is it worth for a house not to be minorly inconvenienced for a few hours twice a year. What does that work out in dollars per person?

As much as people want power to always be there it's not a requirement for life.

I actually enjoy dark time at my house. Quiet reflection time we all need more of.





USA-1
Re: South Australia Energy Experiment Continued.... [Re: BrocLuno] #4363210
03/25/17 05:17 PM
03/25/17 05:17 PM
Joined: Jan 2009
Posts: 6,204
New England
gathermewool Offline
gathermewool  Offline
Joined: Jan 2009
Posts: 6,204
New England
Originally Posted By: BrocLuno
Nukes - build low pressure nukes laugh


+1

"low pressure nukes" is a little vague.


'14 Forester XT FA20DIT (Cobb Stage 1)
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Re: South Australia Energy Experiment Continued.... [Re: Yah-Tah-Hey] #4363259
03/25/17 06:59 PM
03/25/17 06:59 PM
Joined: Dec 2002
Posts: 40,890
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,890
'Stralia
Originally Posted By: HosteenJorje
250 MW of gas fired generation sitting idle? frown


NG prices have skyrocketed with Oz's exports now being a multiple factor of our domestic consumption...$9/GJ at 11AM today (Sunday), will be in the $10s or $11s during the week, more when the heating season starts.

A Decent CCGT with a heat rate of 7 (GJ/MWh) would have a fuel cost of $70/MWh (7c/KWh)...the gas thermals $120/MWh fuel costs.

The CCGTs can't make enough on the peaks to justify manning when the wind is blowing and the brown coal electricity is flowing from Victoria.

Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4363260
03/25/17 07:05 PM
03/25/17 07:05 PM
Joined: Apr 2008
Posts: 37,147
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,147
Ontario, Canada
I'm amazed they are continuing on with this experiment. Ontario finally had to commit to refurbishing the nukes because privately owned gas and renewables have become an absolute nightmare with costs soaring through the roof. OPG still has the expansion (2400MW) for the one nuke in their future plans because once this defecation expose hits critical mass next election with both opposition parties saying they are going to scrap the act and potentially cancel the contracts, the desire to replace obscenely expensive gas/wind with baseload at less than 1/2 the price to bring the rates down and let that private ship sail seems pretty appealing. Also, given the fact we have a federally mandated carbon taxing scheme and our burning of gas isn't helping with that, the nukes are a pretty easy way to meet that target as well. Also, any hopes of electrifying the automotive landscape depend on inexpensive power. With many Ontarians in energy poverty at this point, something absolutely needs to change.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: South Australia Energy Experiment Continued.... [Re: Kuato] #4363263
03/25/17 07:07 PM
03/25/17 07:07 PM
Joined: Dec 2002
Posts: 40,890
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,890
'Stralia
Originally Posted By: Kuato
Interesting article Shannow. I've started (loosely following the Aussie renewable power story. This sounds like early-on teething pains and will be taken care of eventually. After watching the pumped water explanation posted on here awhile back, that seems the best option, though isn't SA extremely dry?


The pumped storage proposed is salt water pumped storage.

http://www.abc.net.au/news/2017-03-17/how-seawater-hydro-could-help-south-australia/8363054

Find an area close to the sea, with high cliffs, and basins that than be blocked and filled...then us it as a battery.

I think the concept of elevating salt water is going to draw the crabs enviro approval wise, but we'll see.

The teething pains are that to replace 1,000MW of thermal needs 3,000MW of solar/wind, and somewhere to put it...while they are disruptive, they push prices down (and regular generators out of the market), WHEN they are the primary source, then it gets a bit (lot) more expensive.

Re: South Australia Energy Experiment Continued.... [Re: turtlevette] #4363315
03/25/17 08:00 PM
03/25/17 08:00 PM
Joined: Dec 2002
Posts: 40,890
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,890
'Stralia
Originally Posted By: turtlevette
5 blackouts in 2 years and they just mention households. The big impacts are when you dump big huge manufacturers costing then a lot of money in the form of damaged product. For a house the only problem is resetting some clocks and most are battery backed these days. Important industrials have UPS units and diesels anyway. Weyeth pharmaceutical paid me $3000 a day to just stand around in case something happened when they were testing their diesels. The big boys have it covered.

Option 7. just live with it.

I mean, how many hundreds of millions is it worth for a house not to be minorly inconvenienced for a few hours twice a year. What does that work out in dollars per person?


You nailed it...couple hours without power versus not having employment....it's a serious part of the issue.

As to one of the blackouts, the state went black...proper black start rather than a few blackout/brownouts (Funny thing was that the night before I was out to dinner with some managers, and explained why I though the state was in trouble...exactly that).

Whole states going black is horrid...

Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4363533
03/26/17 02:32 AM
03/26/17 02:32 AM
Joined: Dec 2013
Posts: 3,686
Massachusetts
turtlevette Offline
turtlevette  Offline
Joined: Dec 2013
Posts: 3,686
Massachusetts
It says a couple of those are from transmission lines being taken out by weather. I remember reading about one that broke your transmission towers like toothpicks. Then a transmission short circuit on another event.

Not green energy related.


USA-1
Re: South Australia Energy Experiment Continued.... [Re: turtlevette] #4363536
03/26/17 02:39 AM
03/26/17 02:39 AM
Joined: Dec 2002
Posts: 40,890
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,890
'Stralia
Originally Posted By: turtlevette
It says a couple of those are from transmission lines being taken out by weather. I remember reading about one that broke your transmission towers like toothpicks. Then a transmission short circuit on another event.

Not green energy related.


That was selective journalism...the fact that the wind had no ride through capability meant that they tripped early on in the debacle.

When they re-started, they immediately put snowtown (wind) in as soon as there was enough diesel power in to connect the asynchronous generation to...then they had to kill it as they couldn't control frequency to reconnect to the rest of the Eastern seaboard.

Fact that you used the snapped "like toothpicks" means that you have taken the message on board and assimilated it...think I even showed you at the time the maps of where the toothpicks went down, versus the load centre and interconnectors...

Re: South Australia Energy Experiment Continued.... [Re: turtlevette] #4364329
03/26/17 11:54 PM
03/26/17 11:54 PM
Joined: Sep 2014
Posts: 340
Canada
emg Offline
emg  Offline
Joined: Sep 2014
Posts: 340
Canada
Originally Posted By: turtlevette
As much as people want power to always be there it's not a requirement for life.


At forty below zero, loss of power is literally a matter of life and death.

Reliable power used to be one of the defining characteristics of the First World. Now, thanks to decades of mismanagement, we're having to buy backup generators, like the rest of the Third World.

Re: South Australia Energy Experiment Continued.... [Re: turtlevette] #4365248
03/28/17 01:16 AM
03/28/17 01:16 AM
Joined: Dec 2002
Posts: 40,890
'Stralia
Shannow Offline OP
Shannow  Offline OP
Joined: Dec 2002
Posts: 40,890
'Stralia
Originally Posted By: turtlevette
It says a couple of those are from transmission lines being taken out by weather. I remember reading about one that broke your transmission towers like toothpicks. Then a transmission short circuit on another event.

Not green energy related.


http://thenewdaily.com.au/news/state/sa/...70328_PM_Update

News just in fresh after the Market Operator finished their analysis...

Re: South Australia Energy Experiment Continued.... [Re: Shannow] #4365572
03/28/17 12:21 PM
03/28/17 12:21 PM
Joined: Dec 2013
Posts: 3,686
Massachusetts
turtlevette Offline
turtlevette  Offline
Joined: Dec 2013
Posts: 3,686
Massachusetts
When we were discussing this some time ago, I mentioned the wind and solar means a fresh look would have to be taken at system protection. It's easy to see after the problem. I would envision several settings philosophy depending on system conditions. A signal would be sent out countrywide to place relays in a different settings group instantly. This could even be done dynamically to save the system.

When you go into a typical substation do you see microprocessor relays or electromechanical?




USA-1
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