In the electricity grid, the transition to green energy is usually incremental. Growth in capacity and production is measured in megawatts and megawatt hours, while the changes in the share of fossil fuels and renewables ebb and surge in fractions of a percentage point. That’s what makes the great leap forward in South Australia this past week all the more significant. On each of the past eight days, the state has reached a level of more than 100 per cent wind and solar. On Monday, it reached 100 per cent renewables on solar only. On Wednesday, and again on Friday, it did the same trick with wind only. Indeed, at 2.05am on Friday, wind set a record share of 128.2 per cent of state demand, beating the previous record of 126 pct, But the big event was news that the shackles are being released on the constraints imposed on the state’s vast and growing resources of wind and solar power. Until now a cap had been imposed for fear there was not enough “synchronous generation” to keep the grid stable.
Renew Economy 29th Oct 2021 read more »