In 2017 in its last month of operation, the 53 year old Hazelwood coal plant was still operating reliably 24 hours a day at around $30/MWhr and producing 1360MW of electricity. Despite its age, it could peak at 86% of its original rated output.
After Hazelwood closed, wholesale prices jumped 85% in Victoria. And the annual average spot wholesale price in Victoria in the last year was $100/MWH.
So naturally Victoria wants to build more wind power, and blow up old reliable coal.
Every single week in January, when electricity demand peaks in Australia, there were days when one old coal plant could have provided more electricity than all 57 new wind farms on the National Electricity Market could.
How much did it cost to build 57 not-there-when-you-need-it wind farms?
In its lifetime Hazelwood made $15 billion dollars worth of electricity (or 520TWH). It paid for itself many times over.
h/t David B, Serp