The trust that owns most of Auckland’s lines company Vector has broken ranks with the wider power industry, arguing that New Zealand’s electricity market is failing the households and businesses it is meant to serve and that the big four generators need to be reined in.
Entrust, which holds 75.1 percent of Vector on behalf of more than 372,000 electricity customers across central, east and south Auckland, made the case in a statement on Wednesday. Its chair, Denise Lee, said the Government’s own move to force power companies to keep the lights on over winter was proof that the market had stopped working as promised.
The trigger is the Government’s proposed Winter Energy Reliability Obligation, a rule that would require the largest players to secure enough firm generation or fuel ahead of each winter in case a dry year leaves hydro lakes short. The Ministry of Business, Innovation and Employment closed its six-week consultation on the obligation on 21 July, and Entrust’s statement lands the day after, effectively taking its submission public.
Lee argued that the very need for such a rule tells the story. “The current system is failing to deliver reliability or affordability,” she said. “Underinvestment in new and backup generation has left the country vulnerable to supply shortages and sharp price spikes during dry years.” Entrust said the market appears to lurch from one energy crisis to the next, which it called an unacceptable situation for a country with New Zealand’s natural resources.
The obligation would apply to the four large gentailers, the companies that both generate and retail power, along with the Tiwai Point aluminium smelter, the single biggest user of electricity in the country. Entrust backs that scope. “Entrust supports applying the new obligations to the four large incumbent gentailers, Contact, Genesis, Mercury and Meridian as well as Tiwai Smelter, as these parties have the scale and market power to meaningfully address dry-year risk,” Lee said. “The obligation requires them to secure sufficient fuel or firm generation ahead of winter whenever there is a potential shortfall.”
For Entrust, the dry-year problem is a symptom of a deeper competition failure in a market dominated by a handful of vertically integrated companies. “The market is being kept perennially tight,” Lee said. “We are seeing persistent underinvestment and generation capacity build occurring later than would be expected in a genuinely competitive market.” She said the consequence had landed squarely on customers. “The result has been higher wholesale prices and annual increases in gentailer profits, which is not a good outcome for households, businesses, or the wider economy.”
Entrust wants the response to go further than winter cover. It is pressing the Government to make it easier to build new generation, to lower the barriers facing smaller and independent generators, and to ease the restrictions that stop lines companies such as Vector from playing a larger role. “Entrust welcomes Government initiatives to make generation investment easier and believes there should be a stronger focus on reducing barriers for smaller and independent generators,” Lee said. “What’s needed now is a more mature regulatory framework and a more competitive market to ensure it happens.”
The intervention carries weight because of who is making it. Entrust was set up in 1993, when it was known as the Auckland Energy Consumer Trust, to keep the region’s power lines in the hands of consumers, and it pays its Auckland beneficiaries a cash dividend each September. It is, in other words, an owner inside the industry telling regulators that the industry has let people down.
The backdrop is a run of rising bills. Consumer NZ has forecast power prices to climb about 5 percent in 2026, on top of a roughly 12 percent jump the year before, and lines charges rose again from 1 April as network companies replace ageing poles and wires. The average household now pays close to 2,478 dollars a year for electricity. Consumer NZ’s research found that last winter one in five New Zealanders went to bed early to stay warm, a quarter went without heating when it was cold, and nearly one in five cut back on food or other essentials to pay a power bill.
The Government has argued that its wider reform package will bite. Energy Minister Simeon Brown, who took the portfolio in April, has said new generator rules will put downward pressure on power bills, and from 1 July the four gentailers are no longer allowed to offer their own retail arms a better deal than independent competitors when it comes to managing wholesale price risk. The Government has also asked providers to pitch for a liquefied natural gas import facility to cover winter shortfalls out to 2028.
Whether any of it shows up on power bills is the open question. Entrust’s message is that tinkering will not be enough, and that a market which needs the state to legislate for winter reliability has already conceded the argument that it is not delivering on its own. The reliability obligation will now be finalised after the consultation, and the gentailers, who have consistently defended their investment records, are likely to contest the claim that they are holding the market tight. The full detail of Entrust’s position sets up a fight over how far the reforms should reach.
What do you think, is more competition the answer to New Zealand’s power prices, or does the country simply need to build more generation? Have your say in the comments below.
This article was written by AI, briefed to report the facts, hopefully without some of the bias people bring to the job 🙂
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