Koolkhan is a locality north of Grafton on the Summerland Way in northern New South Wales, Australia.

[2] Boom barriers were placed at the Copmanhurst road railway level crossing in November 2014.

The station was located beside the river and used this water for condenser cooling and boiler make-up.

It was the largest power station on the North Coast of NSW.

It consisted of 3 turbo generators and six water tube boilers.