Our role in electricity lines

Getting power to your home or business is a complex process. Electricity is first generated from a variety of sources, before being transmitted across the national grid, distributed down the power lines and sold to you. More than 50 businesses across New Zealand play their part in that process.

Read more

Commerce Commission/Electricity Authority combined work programme 2023/2024

The Commerce Commission and the Electricity Authority (EA) are the primary economic regulators of the electricity system in New Zealand.  We recognise the value of working closely together to deliver our respective work programmes.

Read more

Projects

Here you will find electricity lines projects we are currently working on and those we have completed.

Read more

Electricity lines price-quality paths

Price-quality regulation is applied to certain businesses that are regulated under Part 4 of the Commerce Act.

Read more

Electricity transmission

Transpower is the owner and operator of New Zealand's National Grid.

Read more

Electricity distributor performance and data

Regulated electricity lines businesses provide information to us as part of their disclosure requirements. We then publish a summary and analysis of this information on our website.

Read more

Information disclosure requirements for electricity distributors

Suppliers of electricity lines services in New Zealand are subject to information disclosure regulation.

Read more

Electricity distributor map

Read more