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Brian_G said:
Sure, storage is needed for evening use.
For daytime extra, don't they just bleed the excess to earth or something like that?
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Technically it shouldn't generate if there is no load, but for evening use you need massive amounts of storage, which there just isn't any in SA. So renewables will not solve our Load shedding problems, may use a little less diesel during the day, but at night we will still need to burn it.
 
Lupus said:
Technically it shouldn't generate if there is no load, but for evening use you need massive amounts of storage, which there just isn't any in SA. So renewables will not solve our Load shedding problems, may use a little less diesel during the day, but at night we will still need to burn it.
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So this then is the main issue holding up "our" solving the crisis :)
And the best answer maybe is.. let people feedback to the grid and pay them a reasonable rate for it.
 
Whatever we come up with, anybody comes up with, main hurdle is greedy useless anc problems.
 
Brian_G said:
So this then is the main issue holding up "our" solving the crisis :)
And the best answer maybe is.. let people feedback to the grid and pay them a reasonable rate for it.
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No because you still need storage even for people feeding back to the grid. Most of the people with their own home solar systems have their own storage, excess after the batteries are charged are wasted unless used. They won't feed their storage into the grid.
 
Brian_G said:
Whatever we come up with, anybody comes up with, main hurdle is greedy useless anc problems.
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Actually it's happening world-wide and mostly it's because of the greenies pushing renewables. But yeah ANC greed is a big factor here
 
Lupus said:
No because you still need storage even for people feeding back to the grid. Most of the people with their own home solar systems have their own storage, excess after the batteries are charged are wasted unless used. They won't feed their storage into the grid.
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Thing is, it's been working elsewhere in the world - perhaps due to the pay being attractive enough to produce excess? I suppose the question then is, how much of that private grid supply happens at night?
 
Brian_G said:
Thing is, it's been working elsewhere in the world - perhaps due to the pay being attractive enough to produce excess? I suppose the question then is, how much of that private grid supply happens at night?
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It's not working in the rest of the world that is the thing. Often grids are actually having issues with too many people feeding back, the Perth issue Wingnut was talking about.
Remember everyone wants to feedback but honestly during the day we don't have as much need as we do between 4pm to 10pm and 5am to 9am.
 
wingnut771 said:
Keep what we have and supplement it with CCGT's like everyone else does. Have they started building the gas pipe from Mozambique yet?
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Well we'd need to convert our OCTGs or build CCGTs
 
wingnut771 said:
Yes, they're more efficient. They should have started with them. Anyway, I'm talking about new ones where our broken power stations are.
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Ankerlig was supposed to be converted

Ankerlig Power Station - Wikipedia

en.wikipedia.org en.wikipedia.org
Grootvlei and Hendrina as well
www.engineeringnews.co.za

From a coal-to-gas conversion to a microgrid factory, Eskom builds Komati’s just energy transaction case

State-owned electricity utility Eskom is hoping to transform the workshops at the Komati power station – identified as the flagship site for the piloting of a broader ‘just energy transition’ programme that couples decarbonisation with social upliftment – into a factory capable of manufacturing...
www.engineeringnews.co.za www.engineeringnews.co.za
 
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