It's nice to be an arm-chair economist here, but a lot of the 'solutions' and problems spouted are just not true.
- The world price of coal has nothing to do with the price of a long-term coal contract, especially for a 'local' tied mine. Why you ask? My next point...
- Realise that transport IS the major cost in mining. Think again about the prices we're talking here... $10-40 per TONNE!. Yes TONNE!. That is DELIVERED price. The price of transport (when it's not on a ship admittedly) is a HUGE proportion of the cost and therefore price of the coal. Think about it - a 40T truck - that's those MASSIVE double tipper trucks, cost at least R10/km - so move a load a few hundred km and you've paid more in transport than for the coal
The only conclusion to draw is:
1. It's not worth Optimum running the plant - marginal costs > revenue
2. Eskom have a contract for supply that Glencore first of all were supplying bad quality - so rightly can sue
-- as such Optimum have decided it's simply not worth running the plant; they're taking the risk.
To bring this whole thing home. Look at the area around Hendrina Power Station -- one of the plants that Optimum has stopped supplying.
See those black surfaces all around... that's the 'mines'. They aren't deep underground mines, they are pretty much just scraping the coal off the earth. Then taking it to the coal plant*. That's the only way you can make coal at less than R200/tonne... and that's 95% of what Eskom and electricity in South Africa relies on!
* - okay they take it off, wash it and sort it... but clearly they've not been doing that quite well enough - see Eskom suing!
Eskom is a monopoly; locally to the plant Optimum is a monopoly... these things never end well...