Tilting at windmills

In Don Quixote, the book by Cervantes (you know, Don Key Oatie – the one where he is a knight who has a horse called Rocinante, pronounced Ros-sin-antey, and a servant, Sancho, and there a donkey called Dapple and Donnie is a bit off his head, you know) there is a quotation which is: "The truth may be stretched thin, but it never breaks, and it always surfaces above lies, as oil floats on water.” So, thus educated, let us turn to the matter of an article by Andrew Kenny. The article is titled 'Renewable energy is a disaster and will collapse SA’s electricity supply system'. It is hard hitting. Kenny states: "Week by week, the greens tell us the price of renewable energy is coming down but all around the world the cost of renewable energy is going up.