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The Electricity Corporation of New Zealand Ltd (ECNZ), also known as Electricorp is a New Zealand state-owned enterprise (SOE) formed on 1 April 1987, as a transition entity in the process of deregulating the New Zealand electricity market. Most of ECNZ's remaining liabilities were resolved in the late 2000s, and ECNZ is now a residual entity with the sole remaining task of winding up a series of land title issues.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
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The Electricity Corporation of New Zealand Ltd (ECNZ), also known as Electricorp is a New Zealand state-owned enterprise (SOE) formed on 1 April 1987, as a transition entity in the process of deregulating the New Zealand electricity market. Most of ECNZ's remaining liabilities were resolved in the late 2000s, and ECNZ is now a residual entity with the sole remaining task of winding up a series of land title issues.2
Electricity Corporation of New Zealand sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
In the 1980s the New Zealand Electricity Department (NZED), a government department, controlled and operated almost all New Zealand electricity generation and operated the electricity transmission grid. The first phase of deregulation saw the New Zealand Government corporatise the NZED and form the state-owned enterprise ECNZ.
From Wikipedia’s article on Electricity Corporation of New Zealand, shared under CC BY-SA 4.0.3
In 1994, Transpower was separated from ECNZ and created as an SOE to own and operate the national grid. In 1996, ECNZ was split into two SOEs, ECNZ and Contact Energy, and on 1 April 1999 ECNZ was split into three electricity generation SOEs:
Genesis Energy,
Meridian Energy, and
Mercury Energy (formerly Mighty River Power).
All three remain in existence, along with Contact Energy and Manawa Energy (formerly Trustpower, which was split into an electrical retailer business and a separate generation company (Manawa). The retail arm was sold to Mercury).
ECNZ was originally proposed to be wound up by 2009, but resolving the few remaining land title issues has taken years longer than originally expected.
From Wikipedia’s article on Electricity Corporation of New Zealand, shared under CC BY-SA 4.0.3
From Wikidata.1
The numbers on this page point here. Each one links to the record it came from.
