Commerce Commission weighs Orion's NZD $1.51b plan

The Commerce Commission has begun assessing Orion's proposal to invest NZD $1.51 billion in Canterbury's electricity network. The review covers spending that would affect more than 235,000 homes and businesses connected to Orion's network.

The regulator is examining a customised price-quality path application that would allow Orion to spend above standard regulatory settings during the five-year period from 1 April 2027 to 31 March 2032. The proposal includes about NZD $932 million in capital expenditure and NZD $578 million in operating expenditure.

Orion says the spending is needed to address ageing infrastructure, maintain current service levels, support population growth and rising electricity demand, strengthen the network against earthquakes and severe weather, and prepare for future energy needs.

If the application is approved in full, the Commission estimates a typical household's monthly electricity bill would rise by about NZD $7.50 in the first year of the plan, in 2025-2026 dollars. It would then increase by about NZD $3.50 on average in each of the following four years.

The Commission has published a process and issues paper setting out the assessment timetable and the main questions under consideration. It has also issued a notice confirming that Orion's application meets the relevant regulatory rules and can proceed to a full assessment.

The review will focus on whether the proposed spending is justified, whether uncertain investment should be handled differently, and whether Orion's consultation with consumers has been adequate. Officials will also examine how price effects could be managed, what service quality levels are appropriate, and how Orion's progress and performance should be monitored.

Associate Commissioner Nathan Strong outlined the Commission's approach.

“Our job is to rigorously test whether Orion's proposed expenditure is necessary, efficient, deliverable, and in the long-term interest of Canterbury consumers,” said Nathan Strong, Associate Commissioner, Commerce Commission.

The assessment is also being informed by a verifier's report prepared under the customised price-quality path process. The independent review helps the Commission focus on the parts of the proposal that matter most to consumers.

Consumer scrutiny

The Commission is seeking feedback on the scale of the investment, the benefits it would bring to consumers, and the effect on power bills. It has asked for views from households, businesses, and consumer groups in Canterbury.

That consultation reflects the structure of New Zealand's electricity lines sector, where consumers cannot choose between competing local network operators. Under Part 4 of the Commerce Act, the Commission regulates the total revenue those operators can earn and the quality standards they must meet.

For most lines companies, those settings are reset every five years. A customised price-quality path allows a company to seek approval for larger investment and higher revenue than would normally be allowed, but the Commission can approve, amend, or reject parts of the proposal after testing the evidence and considering submissions.

Strong pointed to the importance of consumer preferences when weighing trade-offs between cost and service outcomes.

“We know that every Canterbury household and business values a safe, reliable, and resilient electricity network. Since Canterbury consumers ultimately pay for investments in the network, we need to ensure Orion demonstrates not only that the spending is needed, but also that it represents good value for money and delivers benefits that matter to consumers,” Strong said.

Decision timetable

Orion submitted the application in June, and the Commission plans to release a draft decision in November before reaching a final ruling in March 2027. Any approved price increases would take effect from April 2027.

The regulator will also carry out targeted engagement with consumer groups as part of the review. That work is intended to test how different users value reliability, resilience, preparedness for future demand, and the cost of funding those outcomes through higher network charges.

The Commission does not regulate Orion's owners, set retail electricity prices, or manage the company's day-to-day operations. Its role in this case is limited to deciding whether the proposed level of expenditure and the associated revenue recovery are justified under the regulatory framework.

Strong said the Commission wants consumers to weigh in on the choices embedded in the plan.

“We're particularly interested in consumers' views on the trade-offs, as different people will value different outcomes differently, and understanding those perspectives is an important part of our decision-making,” Strong said.