Rules and regulations

This page includes our current and previous versions of our benefit-based charge (BBC) Assumptions Book.

Regulation ensures quality and value for New Zealanders.

Submissions Transpower has made to its regulators and other government agencies.

Our RCP4 consultation document provided an opportunity for you to give input on how we manage the National Grid.

To ensure we are headed in the right direction we engaged with customers and other stakeholders to further understand what is important to them.

We developed our proposal in consultation with customers and interested stakeholders.