Just out of curiousity, looking at the cost per kW/h:
Installed capacity 2,000,000 kW
Assuming R600m of diesel would last 7 days at 15 hours per day
R600,000,000 / 2,000,000 / 7 / 15
or roughly R3 per kW/h
Not as expensive as I thought, but that excludes capital costs and maintenance on the...