Well tell me then... where's all this nuclear plant. It's not like they haven't been trying!?
http://en.wikipedia.org/wiki/Nuclear_energy_in_South_Africa
"In 2008 Max Lee, CEO of Eskom, announced Eskom plans to build 20 GW of nuclear power by 2025; the first station with a capacity of between 3,300 and 4,000 MW could be completed by 2017.[6] However the investment decision to go ahead with this was not made.[2]"
- So the plan was to build 4000MW in 9 years; it's now 7 years later and 0 has been built.
Koeburg is small (2 x 900MW) and took 8 years to build -- that's from START of Construction to Commissioning. Before START of construction there was years of planning and scheduling, tending, environmental plans etc (ok, maybe they didn't need to do so much of that back then!)
Your comment is known as selection bias -- you're only counting the ones that WERE built. Not all the ones that weren't. I'd probably go as far as saying the median nuclear plant never gets built... just ask Iran!
I agree with you on the expense side of things. REIPP 3 prices are right here:
http://www.ee.co.za/wp-content/uploads/legacy/Energize_2013/03_iDn_summary-of-reippp.pdf
But you have to compare eggs with eggs --> the fully-indexed price is probably what you should compare with ==> c. 70c/kWh for wind. Doesn't sound too bad to me. Ok Solar is much closer to R1.00.
Wonder when they'll release the Window-4 prices.