Regulatory projects
This section contains all current and closed Commission regulatory projects. This includes determinations, reports, inquiries, studies and disclosures relating to telecommunications, grocery, fuel, water, the retail payment system, electricity lines, gas pipelines, airports and dairy.
Monitoring
We have responsibilities for monitoring competition and efficiency in the retail payment system. Our focus is on improving transparency and understanding of the system, including to inform where to focus our efforts to deliver long-term benefits for consumers and merchants.
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Foundational Information Disclosure for Wellington Water
On 15 May 2025 following a Government decision, Wellington Water Limited became a specified entity subject to ‘foundational information disclosure’ (foundational ID).
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Review of price setting event 5 – Wellington Airport
We have now completed our review of Wellington Airport’s price setting event for the period 1 July 2024 – 31 March 2029 (PSE5). Our review included analysis of Wellington Airport’s pricing decisions and forward-looking performance over this period.
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2025 reset of the electricity default price-quality path
On 20 November 2024, we published our final decisions for the default price quality path for electricity distribution businesses (DPP4), beginning 1 April 2025.
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Review of Co-location on Cellular Mobile Transmission Sites
Mobile Co-location enables a Mobile Network Operator (MNO) to install mobile network transmission and reception equipment on another MNO’s tower.
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Review of the Grocery Supply Code
As part of its grocery responsibilities the Commission is required to review the operation and effectiveness of the Grocery Supply Code, with the first review due by 28 September 2025.
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Aurora Energy’s CPP and enhanced information disclosure requirements
Aurora Energy (Aurora) has been moved to a customised price-quality path (CPP) and has been required to publish enhanced information so that stakeholders, including consumers, and the Commission can see what it is doing to fix, upgrade, maintain and operate its electricity lines network.
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Amendments to information disclosure requirements 2024
We have made changes to the information disclosure (ID) requirements for gas distribution businesses (GDBs) and the gas transmission business (GTB) as required under Part 4 of the Commerce Act.
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Geotechnical risk management review of First Gas transmission pipelines
The Commission has engaged an external expert (AECOM) to assess the practices which First Gas Limited apply in managing the geotechnical risks which affect their transmission pipelines.
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Risk management review of gas pipeline businesses
The Commission has engaged an external expert (AECOM) to assess the risk management practices applied by gas pipeline businesses (GPBs) against an internationally recognised risk management framework.
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