poweralert....

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wingnut771 said:
Right, so Medupi is outputting at 35% capacity 70% of the time. Got it.
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Well maybe, cause a power station never runs at 100% anyway, at peak it will run a higher capacity, but at night or quieter periods it won't, the EAF just indicates that it's able to provide power for 70% of the time, which is within margins of a coal power station. Most coal stations over the course of the day would probably come in at 50%, also remember the EAF is over a period of time as well, so I mean technically if you have no issues for an entire day and report that EAF it's 100% :-P
 
Priapus said:
Yeah, no dude. 70 to 80% is within the acceptable range. You won't get to 90%+
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Yeah, if there was more supply and demand was easily met, that would be an acceptable range. Given the current levels of supply being unable to meet demand, it should be higher given it's a new station.

It's embarrassing that a new station can't ramp up when needed...
 
Lupus said:
Well maybe, cause a power station never runs at 100% anyway, at peak it will run a higher capacity, but at night or quieter periods it won't, the EAF just indicates that it's able to provide power for 70% of the time, which is within margins of a coal power station. Most coal stations over the course of the day would probably come in at 50%, also remember the EAF is over a period of time as well, so I mean technically if you have no issues for an entire day and report that EAF it's 100% :p
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Yes, this is all meaningless.

What we know: 20GW of coal is outputting now for about a week as we speak. We have 53.6GW (44 + 9.6) installed. So that is a 37% capacity factor with a 100% EAF for the week.

I would show you but since Andre left, these graphs have a 10% EAF.

Station build-up for the last 7 days - Eskom Data Portal

This shows how resources were used to build-up the demand over the past 7 days, and it includes both generation and demand side resources that Eskom has contracts with.
www.eskom.co.za www.eskom.co.za
1679919399730.png

System hourly demand and available capacity - Eskom Data Portal

Hourly demand is compared against available capacity, to indicate the amount of surplus/shortfall there was. Available capacity must be matched with the total RSA contracted demand.
www.eskom.co.za www.eskom.co.za
1679919621331.png
 
vaakseun said:
Steenbras still fscked, but it looks like it may be the Eskom cable feeding the City's grid from the dam that is at fault rather than the hydro station itself.
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Looks like Steenbras is working again, well kind of, because Cape Town now has this rather bizarre up and down load shedding schedule for the week:

27 March
Stage 2: 05:00 - 16:00
Stage 3: 16:00 - 18:00
Stage 1: 18:00 - 22:00
Stage 3: 22:00 - 05:00

28 March
Stage 1: 05:00 - 16:00
Stage 2: 16:00 - 18:00
Stage 0 (no load-shedding): 18:00 - 22:00
Stage 2: 22:00 - 05:00

29 March
Stage 1: 05:00 - 16:00
Stage 2: 16:00 - 18:00
Stage 0 (no load-shedding): 18:00 - 22:00
Stage 2: 22:00 - 05:00
Click to expand...
 
wingnut771 said:
Right, so Medupi is outputting at 35% capacity 70% of the time. Got it.
Click to expand...
ottwxsx.jpg
 
I'm confused:
ewn.co.za

Breakdowns at power stations sees Eskom ramp power cuts up to stage 3

Power utility, Eskom, said that breakdowns at power stations had increased to more than 15,000 megawatts of generating capacity.
ewn.co.za ewn.co.za

But nobody else is reporting that Eskom is doing stage 2 from 5pm (?) Tuesday morning. Should I take it, that they still doing stage 1 or not? Going up stage will make a difference to my morning.
 
wingnut771 said:
Looks like stage 4 loading, coal down to 18GW from 20 and using OCGTs on a sunday after 5 days of using pumped storage hard:

Station build-up for the last 7 days - Eskom Data Portal

This shows how resources were used to build-up the demand over the past 7 days, and it includes both generation and demand side resources that Eskom has contracts with.
www.eskom.co.za www.eskom.co.za
View attachment 1499373
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Depends what the update today shows, but yeah, stage 4 by this afternoon is my bet with those numbers if nothing improves
 
Paywalled article but using Google, it had this paragraph. Amazing what you can achieve when there are likely no embedded criminal mafias...

After 20 years, Eskom is exiting Uganda – after running two power stations at an average energy availability rate of almost 97%, compared to below 60% in South Africa. The utility expects to finally repatriate its earnings from that country, after not being able to do so for two decades.
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The_Right_Honourable_Brit said:
Paywalled article but using Google, it had this paragraph. Amazing what you can achieve when there are likely no embedded criminal mafias...



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Here's a non Paywalled one.

South Africa's Eskom returns Ugandan power plants as licence expires

KAMPALA, March 27 (Reuters) - South Africa's power firm Eskom returned two hydropower plants to Uganda's government on Tuesday after Ugandan authorities declined to renew its licence, Uganda's energy minister said. Under a 20-year concession signed in 2002, Eskom had been running the two plants...
mybroadband.co.za mybroadband.co.za
 
TheChamp said:
Here's a non Paywalled one.

South Africa's Eskom returns Ugandan power plants as licence expires

KAMPALA, March 27 (Reuters) - South Africa's power firm Eskom returned two hydropower plants to Uganda's government on Tuesday after Ugandan authorities declined to renew its licence, Uganda's energy minister said. Under a 20-year concession signed in 2002, Eskom had been running the two plants...
mybroadband.co.za mybroadband.co.za
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Scary how the entire Uganda has 1400MW installed
 
The_Right_Honourable_Brit said:
Paywalled article but using Google, it had this paragraph. Amazing what you can achieve when there are likely no embedded criminal mafias...



Click to expand...
Yeah hydropower plants EAF actually works differently to coal, cause it doesn't really have a controlled source of fuel, same as wind and solar, so their EAFs would be higher.
 
TheChamp said:
Here's a non Paywalled one.

South Africa's Eskom returns Ugandan power plants as licence expires

KAMPALA, March 27 (Reuters) - South Africa's power firm Eskom returned two hydropower plants to Uganda's government on Tuesday after Ugandan authorities declined to renew its licence, Uganda's energy minister said. Under a 20-year concession signed in 2002, Eskom had been running the two plants...
mybroadband.co.za mybroadband.co.za
Click to expand...
Hydro power, no wonder the EAF is high. You have to be a terrorist to **** that up.
 
Shoo trying to explain to people that EAF has nothing to do with capacity
 
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