'There is a limit': Tomago braces for more shut down orders due to grid instablilty

Tomago Aluminium has the state's largest interruptible load and can take around 600 megawatts off the state grid within minutes.

Tomago Aluminum is expecting to be asked to cut its power usage more frequently in coming years in an effort to prop-up an increasingly unstable energy grid.

The smelter, the state's largest electricity consumer, takes a constant 950 megawatts, or 10 per cent of NSW supply. It is also the largest interruptible load and can take around 600 megawatts off the state grid within minutes.