Stage 0 loadshedding from noon o'clock Sunday

[ToxicBunny]

It would be interesting to see where most of the load shedding is done. My understanding is that households and small to medium size businesses are "shed" in order to keep major industry (say Toyota and Mondi in Durban say) going as their shutting, even for an hour, would lose them a week to re start and backup power is just not possible. Then there is hospitals and probably "important" government offices etc that don't get load shed.

Is the reality is that some subsidise others?

No, even in Durban places like Mondi and Toyota are load curtailed as much as possible, and the areas around them will be load shed. Industrial areas like Westmead go out like clock work and there are some big players stationed there.
Toyota could easily shut down for an hour and not take a week to restart... and I would think in some ways the same goes for Mondi... The week to restart thing is mostly smelters and places like that with big ass furnaces that need to constantly operate at temperature.

Hospitals also get load shed, but many of them have backup systems to keep critical stuff functioning (at least the Private hospitals)

 

[John_Phoenix]

Damn f* cking right. This round has fecked something up with my alarm. The keypads been beeping incessantly each time these feckers start or stop Load shedding since yesterday

Check your alarm backup batteries. That might be the cause (normally one or more of those flat silver lithium ones)

 

[Gordon_R]

It would be interesting to see where most of the load shedding is done. My understanding is that households and small to medium size businesses are "shed" in order to keep major industry (say Toyota and Mondi in Durban say) going as their shutting, even for an hour, would lose them a week to re start and backup power is just not possible. Then there is hospitals and probably "important" government offices etc that don't get load shed.

Is the reality is that some subsidise others?

Simple arithmetic shows that not everyone is shed equally. We are currently off 25% of the time (2 hours in every 8), and the 'saving' is supposed to be 4000MW. This implies a total of 16000MW, which is way short of the actual figure (well over 25000MW).

Nor is load 'shedding' effective, in practice it is load shifting for many things like geysers and fridges which are thermostat driven.

 

[The_Right_Honourable_Brit]

https://twitter.com/i/web/status/1237956744116043777

Huge.

 

[TheMightyQuinn]

https://twitter.com/i/web/status/1237956744116043777

Huge.

Well if Chris says so......

 

[Brian_G]

https://twitter.com/i/web/status/1237956744116043777

Huge.

So what the hell was this all about then?!??

I'm more and more convinced that these Eskom people continue to be manipulative liars!!

 

[Brian_G]

More below from that Chris which is only seen if you go deeper into the link - so I and others have overreacted here, but IMO not in the general sense :-(



In reality, there was nothing wrong with the pump. It tripped out as it should when there was a low water level in the suction inlet pit, caused by an ingress of marine life to the inlet drum screen, which tripped due to high torque, resulting in the low suction pit water level.

.....

Even the tripping of 1 of the 3 sea water circulating pumps of Unit 1 should not have caused the reactor to shut down. But the heat exchanger on the Unit 1 condenser was due for maintenance and was not able to handle the secondary-side heat load with 1 of 3 pumps out of service.

.....

If anyone has doubts, I was advised the facts of the matter last night by Mr Velaphi Ntuli, the Koeberg power station manager and official spokesman for Koeberg, after I contacted him yesterday questioning the reasons being given by @Eskom_SA for the outage of Unit 1 at Koeberg.

.....

I'd also like to confirm my confidence in the integrity of communication professionals at Eskom like Sikonathi Mantshantsha. IMO, this matter was breakdown in the chain of communications at Eskom, & certainly not deliberate misinformation on his part. Let's work together for SA!

 

[Sinbad]

This year's LS history in Randburg.

 

[cr@zydude]

It would be interesting to see where most of the load shedding is done. My understanding is that households and small to medium size businesses are "shed" in order to keep major industry (say Toyota and Mondi in Durban say) going as their shutting, even for an hour, would lose them a week to re start and backup power is just not possible. Then there is hospitals and probably "important" government offices etc that don't get load shed.

Is the reality is that some subsidise others?

My office building houses maby City of Cape Town and Western Cape offices and is shed.

 

[Brian_G]

 

[Geoff.D]

Damn f* cking right. This round has fecked something up with my alarm. The keypads been beeping incessantly each time these feckers start or stop Load shedding since yesterday

The batteries do not get a chance to fully recharge before the next LS event happens. Each cycle reduces the battery charge even more until the battery runs completely flat. The chargers in most alarm systems are not designed to do much more than trickle charge a battery.
One solution is to have a second battery available, which you can swap out while you recharge the other with a smart charger, at a sufficiently high current.

The other is a larger AH battery BUT this also comes with a penalty as a larger battery will take even longer to trickle charge back to normal levels.

 

[Temujin]

More below from that Chris which is only seen if you go deeper into the link - so I and others have overreacted here, but IMO not in the general sense :-(



In reality, there was nothing wrong with the pump. It tripped out as it should when there was a low water level in the suction inlet pit, caused by an ingress of marine life to the inlet drum screen, which tripped due to high torque, resulting in the low suction pit water level.

.....

Even the tripping of 1 of the 3 sea water circulating pumps of Unit 1 should not have caused the reactor to shut down. But the heat exchanger on the Unit 1 condenser was due for maintenance and was not able to handle the secondary-side heat load with 1 of 3 pumps out of service.

.....

If anyone has doubts, I was advised the facts of the matter last night by Mr Velaphi Ntuli, the Koeberg power station manager and official spokesman for Koeberg, after I contacted him yesterday questioning the reasons being given by @Eskom_SA for the outage of Unit 1 at Koeberg.

.....

I'd also like to confirm my confidence in the integrity of communication professionals at Eskom like Sikonathi Mantshantsha. IMO, this matter was breakdown in the chain of communications at Eskom, & certainly not deliberate misinformation on his part. Let's work together for SA!

Lies... they just repaired it quick quick... its just gonna take a few days to get it back on the grid is all

https://twitter.com/i/web/status/1237763964727177217

 

[Lupus]

The batteries do not get a chance to fully echage before the next LS event happens. Each cycle reduces the battery charge even more until the battery runs completely flat. The chargers in most alarms systems are not designed to do much more than trickle charge a battery.
One solution is to have a second battery available, which you can swop ut while you recharge the other with a smart charger, at a sufficiently high current.

I'm going to have to do that, my alarm battery is dead cause of every 12 hours I'm out for 4.5 hours.

 

[MirageF1]

Plus the price of a 7 or 9Ah LA backup compared to 2x decent 100-150Ah batts for off grid home use is chalk and cheese.

Don't muck about..just buy it!

 

[TheMightyQuinn]

The batteries do not get a chance to fully recharge before the next LS event happens. Each cycle reduces the battery charge even more until the battery runs completely flat. The chargers in most alarm systems are not designed to do much more than trickle charge a battery.
One solution is to have a second battery available, which you can swap out while you recharge the other with a smart charger, at a sufficiently high current.

The other is a larger AH battery BUT this also comes with a penalty as a larger battery will take even longer to trickle charge back to normal levels.

Great advice and exactly what I do.

It's just a PITA to swap my alarm battery as it is high in the back of cupboard.

 

[TheMightyQuinn]

Lies... they just repaired it quick quick... its just gonna take a few days to get it back on the grid is all

https://twitter.com/i/web/status/1237763964727177217

Doesn't make sense: Stage 4 until Friday, but Koeberg only back online by Sunday?

 

[Temujin]

Doesn't make sense: Stage 4 until Friday, but Koeberg only back online by Sunday?

Yep. Who knows whats going on anymore /shrug

 

[supersunbird]

Not one Power Update from Eskom today?

 

[Splinter]

The batteries do not get a chance to fully recharge before the next LS event happens. Each cycle reduces the battery charge even more until the battery runs completely flat. The chargers in most alarm systems are not designed to do much more than trickle charge a battery.
One solution is to have a second battery available, which you can swap out while you recharge the other with a smart charger, at a sufficiently high current.

The other is a larger AH battery BUT this also comes with a penalty as a larger battery will take even longer to trickle charge back to normal levels.

Thanks. I'm finally understanding why my blerry ADT battery keeps on getting stuffed with more frequent load shedding. And then needing to be replaced. I thought it was ADT selling dud batteries; but it seems they are doing what they are designed to do - in a non-Eskom world.

 

[Lupus]

Great advice and exactly what I do.

It's just a PITA to swap my alarm battery as it is high in the back of cupboard.

I've just ordered two more from Geewiz R459 for both. And I had to do this last year as well and the year before.