Liddell closure won't affect NSW energy supply: Labor

The closure of AGL's Liddell power plant won't cause supply issues in NSW but challenges are ahead. (Dan Himbrechts/AAP PHOTOS) (AAP)

The closure of AGL's Liddell power station won't make the lights go out in NSW but challenges remain ahead as a number of coal-fired plants near the end of their lifespans.

AGL deemed Liddell, its ageing Muswellbrook coal-fired plant, too outdated to continue operating and will cease power production entirely by the end of the month.