This was posted in Disqus, but rejected as spam for some reason.
Nearly half a trillion rand spent/wasted on totally out dated technology that is polluting and produces tonnes of CO2.
This while PRIVATE companies have built already more than 5 GW of renewables in all less than 3 years up and running for about R 200 B. And this is also for a large part already outdated tech. Developments in
renewables have been enormous.In the first round of REIPPs around 2010, wind and PV solar came in at R1.60- R4/kWh. In the latest round this was 70 to 96 cts/kWh.
Very large PV solar projects in the middle east are producing at R 45 to 70 cts/kWh.The small CSP+TS plants in Kathu and Bokpoort of 50 and 100 mW can store heat=electricity 4 to 9hrs, at a cost of around R 1.69/kWh.
Much larger CSP+TS plants have come online in Australia, Chile, Arizona and Spain that can store the molten salt solution at temps up to 500 C up to 48 hrs, basically making it a 24/7/365 operation. At a cost of 70 to 100 randela cents per kWh.
Medupi and Kusile should probably never have been built.
Much is written about the "Energiewende" in Germany. and they surely made a few mistakes, just like their neighbour Denmark.
In the country of windmills and polders, near Rotterdam, the American engineering giant GE with local engineers are building now the worlds largest wind turbine with a total height of 260 m and blades of 107 m.
Read :
www.popularmechanics.com/sc...
and :
nos.nl/artikel/2297778-groo...
Nl was blessed with the discovery of a massive reserve of natural gas in 1959. Roughly between 1965 and 1975 almost the whole country was piped with natural gas. Houses and power stations were converted to gas.
Because of the gas reserve being below sand and clay, that mostly rural area of the country has been cursed increasingly over the last 20 years with earth tremors, resulting in cracked houses. The gas production has
now been reduced greatly, and will be ceased completely in 2022. As the change over is now to renewables and they do not want to import Russian piped gas, newer ways of heating houses, water and electricity production are now implemented.
My brother in NL is buying a newly built house,ready next year, that has no piped gas anymore, solar panels on the roof, triple pane windows,and the house and water is heated from a large communal heat pump, serving the neighboorhood. Geothermal energy that gets the heat from 2 or 3 km below. He will save 70 to 80% in his energy bills.
That is how the rest of the world is moving, busy with energy transition.
Here in SA we are still stuck with burning dirty coal and with a Dying Dinosaur called Eskom, that is slowly destroying the local economy.