Assumptions book This page includes our current and previous versions of our benefit-based charge (BBC) Assumptions Book.
Regulatory submissions Submissions Transpower has made to its regulators and other government agencies.
Consultation on our draft RCP4 proposal Our RCP4 consultation document provided an opportunity for you to give input on how we manage the National Grid.
Service measures refresh To ensure we are headed in the right direction we engaged with customers and other stakeholders to further understand what is important to them.
Developing our RCP4 Proposal We developed our proposal in consultation with customers and interested stakeholders.