You don't have a renewables grid. You have a coal and gas grid with a few renewables.
And the coal and gas can't hang it together.
Best you move on, and stop your federal government ignoring and obstructing the National Energy Market Operator from managing the grid the way it needs to be managed through the transition to a modern grid..They have been asking for a capacity reserves system for a while.
"Further actions identified include several changes that will support better outcomes for reliability and affordability. These include the introduction of a new reliability standard designed to assure that each region has sufficient resources to meet peak demand requirements during 90 percent of the time - this is more typical standard used internationally; the development of new markets for essential services so AEMO can more efficiently pay suppliers for all resources required to maintain the reliability and security of the physical system; the acceleration of critical upgrades and construction of interconnectors and transmission to enable better use of existing and new supply resources; and the ability to procure and operate a three-year strategic reserve to minimise the need to pay a premium for emergency power.
The development of a more reliable and secure power system does not equate to a more expensive one, Ms Zibelman added.
"
“At present, AEMO does not have the tools or mechanisms to enable cost effective access to sufficient resources for all hours of the year, so we are forced to use more emergency actions that impose unnecessary risk and costs on consumers, just at a time where the goal is to pursue more cost-effective outcomes. To achieve our goal, we are working closely with industry, the Commonwealth and State governments to pursue with necessary speed the adoption of changes required to deliver affordable, secure and reliable energy to Australian consumers this year and in the future,” Ms Zibelman said.
https://energylive.aemo.com.au/News/AEMO-2019-ESOO
