On this page you will find the final decisions on the 2015/16 IM review.

In December 2016 we reached decisions on all IMs within the scope of the 2015/16 IM review, except for three areas:

  • we reached decisions on the Transpower Incremental Rolling Incentive Scheme (IRIS) in June 2017
  • we reached decisions on the customised price-quality path (CPP) information requirements for gas in December 2017
  • we reached decisions on the related party transaction provisions in December 2017.

For consultation and supporting documents, go to the process and consultation page.

The current consolidated IMs are available on the individual sectors' pages: