The purpose of input methodologies is to promote certainty for suppliers and consumers in relation to the rules, requirements, and processes applying to the regulation, or proposed regulation, of goods or services under Part 4 of the Commerce Act 1986.
Once input methodologies are determined, they apply to both regulated parties and the Commerce Commission.
Input methodologies were determined in December 2010 for specified airport services, electricity distribution and transmission, and gas pipelines. The Commission must review each input methodology no later than seven years after its date of publication and, after that, at intervals of no more than seven years.
Input methodologies for electricity distribution services were determined in December 2010.
Input methodologies for gas pipeline services were determined in December 2010.
Input methodologies for specified airport services supplied by the companies operating Auckland, Christchurch and Wellington International Airports were determined in December 2010.
Transpower Input Methodologies
The input methodologies determination for Transpower includes input methodologies that apply to individual price-quality regulation and input methodologies that apply to information disclosure regulation.
Consultation Prior to December 2010
The requirement to develop input methodologies was one of the key changes to the Commission's regulatory responsibilities under the Commerce Amendment Act 2008.
Amendments and Clarifications
On this page you can find input methodologies related correspondence. From time to time the Commission may also publish updates on process relating to input methodologies.
Cost of Capital
The cost of capital is the financial return investors require from an investment given its risk.