What is $90 million in avoided oil imports worth to a country with no refinery?

The number that reframes the debate

Electric cars, trucks and buses have saved New Zealand $90 million in oil imports since the start of 2024, according to a Newsroom analysis published this week. The mechanism is blunt: for every three kilowatt-hours that charge an EV, the country imports one less litre of oil. That is import substitution measured in dollars, not virtue.

The timing matters. This is not a green-lobby press release from a period of cheap fuel. It lands after a year in which the risk it describes went from theoretical to painfully real.

A supply chain hanging by a thread

Since the Marsden Point refinery closed in April 2022 and converted to a pure import terminal, New Zealand has brought in 100 percent of its petrol, diesel and jet fuel, mostly from South Korea, Singapore and Japan. Every litre arrives by ship.

When conflict in Iran closed the Strait of Hormuz early this year, oil surged past US$100 a barrel and petrol hit NZ$3 a litre, with some stations running dry. By late March, petrol topped $3.30 nationally and exceeded $4 a litre on Waiheke Island.

The buffer was thin. The country held roughly 52 days of total fuel cover and less than 33 days of petrol. Finance Minister Nicola Willis acknowledged the buffer “relies on ships continuing to arrive and was designed for short disruptions, not sustained crises”. At current prices the country spends $40 million a day at the pump, a bill that compounds fast during a sustained squeeze.

We generate the electricity but barely use it for transport

Here is the strategic absurdity. New Zealand has one of the strongest platforms on earth for electrifying transport. By the March 2026 quarter, renewables accounted for 94.5 percent of generation, with solar hitting a record 373 GWh, up 50.2 percent year-on-year.

Yet transport consumes nearly 40 percent of all energy in New Zealand, while electricity provides just 0.5 percent of domestic transport energy. EVs make up only about 3 percent of the light vehicle fleet. We produce clean power in abundance and still burn imported oil to move ourselves around.

MBIE’s own modelling, cited by Rewiring NZ, finds accelerated electrification is twice as useful and five times cheaper than restarting Marsden Point as a resilience measure. Electrifying 25 percent of the light fleet would add seven days to the national fuel buffer. The NZIIA framed the issue as national security, not environmentalism, and Auckland University energy economist Professor Basil Sharp drew a direct line to the 1973 oil crisis, arguing the shock should be treated as a chance to build resilience rather than an excuse to chase cheaper petrol.

Why business fleets are the real lever

For B2B readers this is the sharp end. Around 60 percent of new cars are bought by businesses before flowing into the second-hand market. Fleet turnover is the primary channel through which EVs reach ordinary households. Rewiring NZ recommends accelerated depreciation and Fringe Benefit Tax relief to speed that turnover, and warns that scrapping the Clean Car Standard would leave New Zealand alongside Russia as the only OECD country with no vehicle efficiency standards.

The policy record here is not flattering. The Clean Car Discount ran until the end of 2023, issuing 192,000 rebates at a cost of $634 million, during which EV fleet growth exceeded 50 percent a year. After cancellation, growth collapsed to under 10 percent. We walked into a supply shock with 3 percent electrification.

The market got there before the policy did

When prices spiked, buyers moved without waiting for incentives. New EV and plug-in hybrid registrations hit 1,033 in the week to 22 March 2026, against 225 a year earlier, one in five new registrations. GVI Kiwi EV specialist Geary Sutjahjo said the firm had “sent two of our buyers to Japan” to secure stock. Westpac reported EV loan applications roughly doubled in the fortnight after the surge.

The trade data confirms a structural shift, not a blip. Reduced-emission vehicle imports rose 105 percent to $810 million in the year to June 2026. BloombergNEF’s Colin McKerracher has noted that Nepal, Vietnam and Ethiopia are adopting EVs for fuel-security and economic reasons, not climate policy. With 96 percent renewable power and 100 percent imported fuel, New Zealand has a stronger economic case than any of them.

The $90 million saved is small next to a $40 million-a-day fuel bill. But it points at the only durable hedge against the next tanker that doesn’t arrive: needing less of what we cannot make ourselves.

Sources

• Electric vehicles save NZ $90m in oil imports amid fuel crisis (2026-09-14)
• Iran oil crisis: why NZ’s car dependence is now a strategic liability (2026-03-21)
• Distant conflict, local crisis: Is this oil shock the wake-up call NZ needed? (2026-03-27)
• How Iran crisis shows NZ has failed on fuel supplies, EVs and road building (2026-03-19)
• EVs selling ‘off the boat’ before they even arrive in NZ (2026-03-26)
• Reduced-emission vehicle annual imports up in June 2026 (2026-06-01)
• Iran oil crisis: why NZ’s car dependence is now a strategic liability – NZIIA (2026-03-18)
• Oil shock lessons for New Zealand – University of Auckland (2026-03-23)
• The real solution is not cheaper petrol, it is needing less of it – Rewiring NZ (2026-03-11)