In a famous 1963 speech, US civil rights leader, Martin Luther King Jr. said: ‘I have a dream that my four little children … will not be judged by the colour of their skin, but by the content of their character.’

There is a less exalted but nevertheless alluring dream concerning our electricity system: that it not be judged by its colour (green or non-green), but by its reliability and cost.

Labor does not share this dream.