According to consumer advocacy group Consumer NZ, household power bills in New Zealand have risen at nearly twice the rate of wider inflation over the 27 years since the electricity market was reformed. In a new report released ahead of the election year, the organization outlines four drivers of high electricity costs and proposes four solutions to help struggling households.
Household Hardship and Rising Power Bills
According to Consumer NZ, more than 30,000 households had their power disconnected at least once during the past financial year because they could not afford to pay their bills.
“We’ve been concerned for some time that the electricity sector is not showing up well for consumers,” said Consumer NZ chief executive Jon Duffy. He noted that while the market is delivering strong results for major gentailers and generating healthy dividends for the government and other shareholders, an increasing number of New Zealanders struggle to keep the lights on.
Duffy pointed out that while more than 60 reports have examined the electricity sector over the past couple of decades, none approached the issue primarily from a consumer’s perspective. The latest publication aims to urge the government to alter how the sector treats everyday energy users.
Dominance of the Major Gentailers
Market dominance by a small group of large energy companies sits at the heart of the problem, according to the report. Contact Energy, Genesis Energy, Mercury, and Meridian Energy control the vast majority of the retail market while owning substantial generation assets.
This structural arrangement grants major gentailers distinct advantages that smaller, independent retailers and generators simply cannot match. Duffy clarified that breaking up the major gentailers is not necessarily required, but market competition must improve.
“It’s really difficult for a new entrant to come into the retail part of the market knowing they have to buy power off the very companies they’re competing with,” Duffy said. “Something needs to be done to shift that imbalance of power.”
Did you know?
Flawed Pricing Models and Fossil Fuel Reliance
Another major driver of inflated costs is the wholesale pricing mechanism itself. According to Consumer NZ, power prices fail to reflect real generation costs because of how electricity is priced at the margin.
“We have a system that prices electricity at the cost of the most expensive fuel,” Duffy explained. On a typical day when 95 percent of generation comes from free renewable sources like hydro, wind, and solar, the remaining 5 percent generated by burning coal and gas sets the price for all electricity produced that day.
Consumer NZ argues that this market model, originally designed for European jurisdictions with lower renewable percentages, does not suit New Zealand’s highly renewable grid. Furthermore, the report notes insufficient investment in homegrown energy sources and highlights how political friction has impeded long-term planning.
The Political Trilemma and Proposed Solutions
Tackling the energy crisis requires navigating what industry experts call the “trilemma.” According to Duffy, decision-makers must balance security of supply (keeping the lights on), sustainability (reducing emissions), and affordability.
Security of supply consistently dominates political decision-making. When energy ministers consult major gentailers who warn that market changes could threaten power delivery and leave voters in the dark, fear often drives political inaction across multiple terms of government.
To break this cycle, Consumer NZ recommends four specific actions:
- Reduce the market dominance of major gentailers to foster true retail competition.
- Reform pricing structures so power costs better reflect actual generation expenses.
- Increase investment in local power sources to eliminate heavy reliance on coal and gas.
- Establish a cross-country, cross-party energy strategy prioritizing affordability, security, and emissions reductions.
Duffy expressed disappointment that political parties have yet to release comprehensive policies covering the entire energy system. “The challenge for political parties is to go back to the drawing board, do some more thinking, come up with some decent policy to help people out of the situation that politicians have allowed to evolve,” he said.
Frequently Asked Questions
Why are New Zealand household power bills rising so fast?
According to Consumer NZ, household power bills have grown at nearly twice the rate of wider inflation over the last 27 years due to market dominance by major gentailers, wholesale pricing models tied to expensive fossil fuels, and a lack of long-term strategic planning.
What are the four solutions proposed by Consumer NZ?
Consumer NZ suggests reducing gentailer market dominance, aligning power prices with real generation costs, boosting local energy investment to reduce reliance on coal and gas, and implementing a cross-party energy strategy focused on affordability, security, and sustainability.
Why do major gentailers have an advantage in the retail market?
Contact, Genesis, Mercury, and Meridian control most retail customers while owning major generation assets. This forces independent retailers to purchase wholesale power directly from the very competitors they are trying to challenge.
What are your thoughts on New Zealand’s electricity market structure? Leave a comment below, share this article with your network, or subscribe to our newsletter for ongoing updates on energy policy and consumer rights.
Related reading