Here’s an idea to beat load-shedding - instead of bailing out Eskom, subsidise solar power

access

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It is a good idea, but it fails to mention several other issues...

1) The system basically has to be replaced every ten years (in an optimum scenario).
2) It takes more income away from Eskom and local municipalities thereby further endangering their economic viability.
3) If it incorporates a battry backup system, then it can take up some space and also increases insurance risk due to possible fire risk.
4) Theft of solar panels and electrical equipment is a high possibility in South Africa
5) Governments around the world have shown a higher propensity to tax such installations (due to decreased income) rather than subsidise such installations. In fact, Cape Town is trying to do this very thing, but requiring registration and licensing.
6) Etc.
maybe use natural batteries, like hydro or molten salt. surely the brine from salt water desalination plants can be used for molten salt batteries, just extract the magnesium chloride, which can be used for something else again..

sounds like a whole lot of industry around it
 

chrisc

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Its bad enough buying "Deep Cycle" batteries that are not terribly reliable. I have 12 batteries in a 24 VDC system that were fitted in 2015. Already two will no longer hold their charge.

One actually failed less than one year after purchase, and the supplier, Communica in Paarden Eiland bent over backwards not to honour the guarantee

There are about R2000 each

Molten salt batteries are for huge installations, like the one near Upington (see below)
 

access

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ah right, residential level.. tis a bit large

scale them down to fit a home :p
 

system32

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Residential solar power is not a viable national solution by any standard. This article is biased by relying on a single subject, presumably with a vested interest.
Did you watch the SolarEdge Video?

Sure seems like distributed generation is the future.

 

Sinbad

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maybe use natural batteries, like hydro or molten salt. surely the brine from salt water desalination plants can be used for molten salt batteries, just extract the magnesium chloride, which can be used for something else again..

sounds like a whole lot of industry around it
It's not sodium chloride.
Potassium nitrate and sodium nitrate if I'm not mistaken
 

Swa

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Sure let's just kill off Eskom's revenue stream even faster. Really bright idea.
 

Swa

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Its bad enough buying "Deep Cycle" batteries that are not terribly reliable. I have 12 batteries in a 24 VDC system that were fitted in 2015. Already two will no longer hold their charge.

One actually failed less than one year after purchase, and the supplier, Communica in Paarden Eiland bent over backwards not to honour the guarantee

There are about R2000 each

Molten salt batteries are for huge installations, like the one near Upington (see below)
Or replace with 2 Li-ions. Infinitely more reliable and none of this deep cycle garbage that isn't really deep cycle at all. Also getting cheaper each year instead of more expensive like traditional batteries.
 

MightyQuin

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Or replace with 2 Li-ions. Infinitely more reliable and none of this deep cycle garbage that isn't really deep cycle at all. Also getting cheaper each year instead of more expensive like traditional batteries.
If you think R20k per battery is "getting cheaper", then sure...
 

elvis_presley

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Sure let's just kill off Eskom's revenue stream even faster. Really bright idea.
Yup - whoever wrote this article doesn't seem to understand what the actual problem are. Load shedding is a symptom of the underlying problems; curing the symptom and ignoring the core problem is just going to make things far worse in the future. We can all agree that Eskom sucks, but I'm sure we all agree we'd rather try and fix it than let it die and the country go dark.
 

wingnut771

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Yup - whoever wrote this article doesn't seem to understand what the actual problem are. Load shedding is a symptom of the underlying problems; curing the symptom and ignoring the core problem is just going to make things far worse in the future. We can all agree that Eskom sucks, but I'm sure we all agree we'd rather try and fix it than let it die and the country go dark.
Who is we?
 

SauRoNZA

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Takes too much profit out of the municipalities' pockets so there will never be political will to do this.
Why? Wouldn’t they make the same profit and simply pay those feeding back into the grid (at a much lower rate) instead of Eskom?

It should be MORE profit for municipalities but less for Eskom.
 

Vrotappel

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Communists will never go for something like this. Decentralization is against everything they stand for. Who is going to subsidize Soweto?
 
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