In 2015, AGL announced it would close Liddell Power Station in 2022. AGL later extended this to April 2023. This would make Liddell the next in a series of coal power station closures. In the past 10 years closures have removed over 5000MW of capacity from the National Electricity Market (NEM).
The Australian Energy Market Operator warned there would be a higher risk of blackouts in NSW after Liddell closes, without more investment in dispatchable power. As a result of these concerns the Australian Government set up the Liddell Taskforce in August 2019.
It examined the effect of the planned closure on price, reliability and security in NSW and the NEM. It also considered the impact on dependent industries and the local region.