Quick answer
As at 6 November 2026, the day before New Zealand votes, the regulated parts of a business power bill are set: lines company revenue to 31 March 2030, Transpower's for five years from 1 April 2025, gas pipeline charges to 30 September 2031, and the Electricity Authority's hedge-market rules. An election changes law and policy, not those clocks.
Key facts
- The general election is on Saturday 7 November 2026; overseas voting opened on Wednesday 21 October and enrolment closed at midnight on Sunday 25 October (Ministry of Foreign Affairs and Trade).
- Local lines companies may recover $11.5 billion over the five years from 1 April 2025, 47% more in real terms than the previous five years; Transpower $5.9 billion over five years, up 44% (Commerce Commission, 20 November 2024).
- Gas pipeline charges are set from 1 October 2026 to 30 September 2031, with increases of around 1 to 3 percent for most households excluding inflation, on about a third of a typical residential gas bill (Commerce Commission, 27 May 2026).
- Since 1 July 2026 the four large generator-retailers must not favour their own retail arms in supplying or pricing hedge contracts; the first retail price consistency assessments were due 3 September (Electricity Authority, 26 May 2026).
- Billing rules made on 23 February 2026, with a six-month cap on back bills for domestic and small business consumers, now commence on 1 April 2027; the Authority urges early adoption (Electricity Authority).
On this page· 6 sections
Not the parts rising fastest, and not soon. As at 6 November 2026, the day before New Zealand votes, the charges that have pushed business power bills up since April 2025 sit on fixed regulatory clocks: lines revenue to 31 March 2030, Transpower's for five years from 1 April 2025, gas pipeline charges to 30 September 2031. The Electricity Authority's hedge-market and billing rules are made and dated. More dated pieces are in our market updates.
What is already fixed, whatever the result?
| What | Who set it, and when | Runs | What it means for a business |
|---|---|---|---|
| Local lines company revenue: $11.5 billion over five years, 47% more in real terms than the previous five | Commerce Commission, final decision 20 November 2024 | 1 April 2025 to 31 March 2030 | Lines charges, 54% of this year's increase, keep rising to 2030, more slowly |
| Transpower revenue: $5.9 billion over five years, up 44% | Commerce Commission, 20 November 2024; path last amended 3 November 2026 | Five years from 1 April 2025 | Transmission charges follow the same clock |
| Gas pipeline charges: around 1 to 3 percent more for most households, excluding inflation | Commerce Commission, 27 May 2026 | 1 October 2026 to 30 September 2031 | About a third of a typical residential gas bill is priced to 2031 |
| Non-discrimination obligations on the four large generator-retailers' hedge contracts | Electricity Authority, made 15 May 2026 | In force since 1 July 2026 | Independent retailers buy hedges on the same terms as the four's own retail arms |
| Peak export rebates for small businesses with a connection up to 45kVA exporting up to 45kW | Electricity Authority, 22 December 2025 | From 1 April 2026 | A business with solar is credited for exporting at peak times |
| Six-month cap on back bills for domestic and small business consumers | Electricity Authority, made 23 February 2026; deferred 18 August 2026 | Required from 1 April 2027; earlier where retailers adopt early | The Authority will publish which retailers apply it early |
Why can't a new government simply change lines charges?
Because the government does not set them. The Commerce Commission's revenue limits and quality standards for the regulated lines companies "are effective from 1 April 2025 until 31 March 2030". Inside that period the path moves only through the Commission's own amendment decisions: the lines companies' consolidated determination is dated 26 August 2026, and Transpower's path was last amended on 3 November 2026. The next full reset, DPP5, "will apply from 1 April 2030"; the Commission's open letter on it is dated 25 August 2025.
The money was settled on 20 November 2024: $11.5 billion of maximum allowable revenue for the local lines companies over the five years, "an increase of 47% in real terms compared to the previous five years", and $5.9 billion for Transpower, up 44%. The Commission's own explainer says distribution and transmission costs together "make up just over 30% of the average power bill" and "are likely to keep rising until at least 2030". The Authority's price data for 1 November 2025 to 30 June 2026 puts lines charges at 54% of this year's increase and expects them "to continue rising, although at a slower pace, through to 2030" (Electricity Authority, 12 August 2026). How a network's charges reach a commercial tariff is in lines charges explained; the full set of 2026 drivers is in why business power bills are rising.
One piece of the 2030 reset is decided too: on 23 September 2026 the Commission adopted a five-year trailing average for the risk-free rate in regulated networks' financing costs, which "will reduce the influence of short-term interest rate changes on regulatory settings", from 2030 for electricity lines and 2031 for gas pipelines, with all decisions expected in the third quarter of 2027.
What about gas pipeline charges?
Also set, and more recently. On 27 May 2026 the Commission published its final decision on the fourth gas default price-quality path, which "applies to gas pipeline services from 1 October 2026 to 30 September 2031" and covers First Gas transmission and the GasNet, Powerco, Vector and First Gas distribution networks. It expects most households to see "moderate increases of around 1 to 3 percent from 1 October 2026 (excluding inflation)", and notes that pipeline charges "make up about one-third of a typical residential user's gas bill". Business price categories per network are in business gas pipeline charges from 1 October 2026.
Which Electricity Authority rules are already in force?
The Electricity Authority is an independent Crown entity under the Electricity Industry Act 2010. Section 15 of the Act gives it a main objective, "to promote competition in, reliable supply by, and the efficient operation of, the electricity industry for the long-term benefit of consumers", and an additional one to protect the interests of domestic and small business consumers. The Government's lever is a Government Policy Statement under section 17 of the Act; the Authority welcomed the one released on 11 October 2024 as "aligned to, and consistent with" its work programme. Rules already in the Code stay in force until the Authority amends them:
- Hedge-market non-discrimination, made 15 May 2026, in force since 1 July 2026. The four large generator-retailers "must not discriminate between buyers or between its own internal business units and buyers" when supplying or pricing risk management contracts, and must submit six-monthly retail price consistency assessments; the first were due on 3 September (Electricity Authority, 26 May 2026). The Authority says they "should not be used as a reason to increase prices".
- Peak export rebates, from 1 April 2026. Distributors must pay small businesses with a connection up to 45kVA that export up to 45kW at peak times (Electricity Authority, 22 December 2025).
- Billing rules, made 23 February 2026. Clearer bills, product information standards, and a rule that a retailer "must not charge a domestic consumer or a small business consumer" for undercharged amounts "more than 6 months before the date of the invoice" unless an exception applies (clause 11.32H). An amendment made on 18 August 2026 deferred commencement "to provide additional time for retailers to make the necessary systems changes"; the Code now shows 1 April 2027, and the Authority's 13 August notice says the reforms start being introduced from 30 October 2026, encourages early compliance and will publish which companies do it. A second amendment, made 28 September 2026, sets a $50 (GST inclusive) or 25%-of-average-invoice threshold before the extra support steps for a back bill apply, from 1 April 2027.
What is not locked in?
- The LNG import terminal. RNZ reported on 23 September 2026 that the decision on whether the Government underwrites a new LNG import terminal was put off until after the election. It is the next Government's call, and it does not alter the regulated pipeline charges above.
- Anything that needs a law change. The Commission and the Authority work under Acts of Parliament, and what those Acts say is Parliament's to change. A Government Policy Statement under section 17 steers the Authority's work programme; it is not a price path.
- The energy part of your bill. The wholesale market follows water, gas and demand, and no election sets it. The world-price side of that story is in global energy and NZ business power prices.
- The next resets. DPP5 applies from 1 April 2030 and the next gas path from 1 October 2031, set under whatever law applies then.
What should a business do before and after 7 November?
- Separate the energy rate from the rest. Lines and transmission are priced to 2030 and gas pipelines to 2031, whoever supplies you, so compare offers on the energy rate, daily charge and term, and check your lines price category separately.
- Find your contract end date and notice period. The election does not touch a fixed-term contract; its review date does. Work through the contract renewal checklist before the renewal letter arrives.
- Watch your bills. The six-month back-bill cap is required from 1 April 2027, but the Authority expects many retailers to meet the original 30 October 2026 date, so query any back bill older than six months now.
- Get the numbers checked. Our savings calculator starts from an address or ICP and shows where your current rate sits, and the business electricity page explains how we compare it.
Questions people also ask
Do my lines charges change on election day?
No: lines charges follow the Commerce Commission's five-year price paths, and the Commission limits how fast Transpower and most local lines companies can raise prices each year. The current electricity paths run to 31 March 2030 and the gas pipeline path to 30 September 2031. Election day changes none of those dates.
Could a new government cancel the 2025 to 2030 lines charge increases?
Not by announcement. The revenue limits are Commerce Commission determinations in force until 31 March 2030, which move inside the period only through the Commission's own amendment decisions, and the next full reset, DPP5, applies from 1 April 2030. Changing that framework means changing the law, which is Parliament's to do.
Is the LNG import terminal decided?
No. RNZ reported on 23 September 2026 that the decision on whether the Government underwrites a new LNG import terminal had been put off until after the election. Whatever is decided afterwards would not change the regulated pipeline charges, which the Commerce Commission has set to 30 September 2031.
Will the hedge-market rules lower my business power price?
The Electricity Authority says the obligations in force since 1 July 2026 should not be used as a reason to increase prices, and that it expects downward pressure on prices and more options for consumers over time. It is not promising a figure, and neither should anyone else. The test is a repricing quote at your contract's next review.
Did the new billing rules start on 30 October 2026?
Not as a legal requirement: the Electricity Authority made the billing amendment on 23 February 2026 for a 30 October 2026 start, then deferred its commencement to 1 April 2027 so retailers could finish their systems changes. Its 13 August 2026 notice says the reforms start being introduced from 30 October and strongly encourages early compliance. It will publish which companies comply early.
Does a change of government change my fixed-term contract?
No. A fixed-term supply contract holds the energy rate and term agreed on the day it was signed. The practical date for your business is the contract's end or review date, which is why finding it now matters more than the election result.
Sources
Primary sources first. Every figure on this page comes from one of these, each with the date we last accessed it.
- 2026 New Zealand General Election (opens in a new tab)Ministry of Foreign Affairs and Trade · accessed 6 November 2026
- Consumer benefit key as ComCom allows increased investment in electricity network (opens in a new tab)Commerce Commission · accessed 6 November 2026
- 2025-2030 electricity default price-quality path (opens in a new tab)Commerce Commission · accessed 6 November 2026
- 2025 Transpower individual price-quality path (opens in a new tab)Commerce Commission · accessed 6 November 2026
- Understanding why changes to lines charges may impact your electricity bill (opens in a new tab)Commerce Commission · accessed 6 November 2026
- Commission determines new approach to infrastructure financing costs (opens in a new tab)Commerce Commission · accessed 6 November 2026
- Commission sets new revenue limits for gas pipeline businesses (opens in a new tab)Commerce Commission · accessed 6 November 2026
- 2026 Gas default price-quality path (opens in a new tab)Commerce Commission · accessed 6 November 2026
- Data shows 6.8% increase to power bills across households and small businesses (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Non-discrimination obligations and associated amendments (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Electricity Authority to level electricity competition playing field (opens in a new tab)Electricity Authority · accessed 6 November 2026
- New rules for power companies to improve bills, reduce bill shock and introduce product information standards (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Improving electricity billing (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Electricity Industry Participation Code (Improving Electricity Billing) Amendment 2026 (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Improving electricity billing amendment (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Improving electricity billing amendment (No 2) (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Billing reforms introduced from 30 October (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Clarification on small business eligibility for peak export rebates (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Who we are (opens in a new tab)Electricity Authority · accessed 6 November 2026
- What we do (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Authority welcomes Government Policy Statement on electricity (opens in a new tab)Electricity Authority · accessed 6 November 2026
- Decision on LNG terminal delayed (opens in a new tab)RNZ · accessed 6 November 2026
