On 22 December 2011, the AEMC published a technical paper prepared by its consultants on the estimation of long run marginal cost and other technical issues that were discussed in the AEMC's recent directions paper on the Major Energy Users' market power rule change request. This technical paper was requested by several stakeholders during the public forum and in submissions on the directions paper.

Comments on the technical paper may be made by 2 February 2012.