Key information

Determinations and reports

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Review of input methodologies

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Electricity distribution

 

Consolidated electricity distribution services IM determination as at 28 February 2017

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Electricity distribution services IM amendments determination 2016

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Input Methodology amendments determined by the High Court (2014)

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Incremental rolling incentive scheme IM amendments determination

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Electricity distribution services IM amendments determination

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Electricity lines services and gas pipline services IM determination amendment – WACC percentile for price-quality regulation

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Electricity lines services IM determination amendment 2014

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Transpower

 

Consolidated Transpower IM determination as at 28 February 2017

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Transpower IM amendments determination 2016

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Consolidated Transpower Capital Expenditure IM determination as at 5 Feb 2015

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Gas pipelines

 

Consolidated gas distribution IM determination as of 28 Feb 2017

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Consolidated gas transmission services IM determination as of 28 Feb 2017

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Gas distribution services IM amendments determination 2016

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Gas transmission services IM amendments determination 2016

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Input Methodology amendments determined by the High Court (2014)

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Electricity lines services and gas pipline services IM determination amendment – WACC percentile for price-quality regulation

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Implementing the change to Powerco's disclosure year-end – 3 Dec 2013

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Airports

 

Consolidated airport services IM determination as of 20 Dec 2016

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Airport services IM amendments determination 2016

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Input Methodology amendments determined by the High Court (2014)

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Amendments and clarifications

 

Consultation on proposed amendments to Incremental Rolling Incentive Scheme for electricity distributors

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Draft electricity distribution IRIS IM amendments determination 2015

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Amendments to the WACC percentile

 

Further work on the cost of capital IM for airports – proposal

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