Three Reasons New Zealand Should Pursue Energy and Fuel Sovereignty.

1. Stronger Security and Resilience

New Zealand is geographically remote and highly dependent on imported liquid fuels. Since the closure of the Marsden Point refinery, the country has imported all its refined petroleum products. MBIE reports that oil imports totalled 340 petajoules in 2025, with diesel accounting for 45%, petrol 30% and jet fuel 19%. Domestic transport used 76% of New Zealand's oil products.

Those supply chains generally work well, but they are exposed to shipping constraints, overseas refinery outages, geopolitical conflict, exchange rates and global price shocks. Fuel stocks provide a temporary buffer; domestic production creates an additional source of supply.

Hydrogen could improve energy resilience because it can be produced in New Zealand wherever suitable renewable electricity, water and infrastructure are available. Production does not have to be concentrated at one large facility. Regional plants could supply freight routes, ports, industrial clusters, farms or isolated communities. Stored hydrogen could also support fuel cells or suitable generators during prolonged network outages, complementing batteries that handle immediate and shorter-duration needs.

This does not mean hydrogen can immediately replace the scale and convenience of the existing petroleum system. Compression, storage, transport and refuelling infrastructure must be built, and strategic reserves must be sized for credible disruptions. The security benefit comes from diversity: imported fuels, direct electricity, batteries, biofuels and domestically produced hydrogen can reduce the risk that failure of any single supply chain stops essential activity.

2. Greater Control over Costs and More Value Retained in New Zealand

Every litre of imported fuel transfers part of its value overseas and exposes New Zealand users to international commodity prices and currency movements. A domestic energy pathway can redirect more spending into local renewable generation, engineering, construction, operations, maintenance and regional industry.

Renewable hydrogen is particularly relevant because electricity is its principal input. An electrolyser uses electricity to separate water into hydrogen and oxygen. As New Zealand adds wind, solar, geothermal and other renewable generation, electrolysers could increase production when electricity is plentiful and reduce demand when the power system is tight. Hydrogen production can therefore become a flexible customer for new generation rather than an inflexible load competing with homes and businesses at peak times.

Domestic production does not guarantee cheap fuel. The hydrogen price must recover electricity, the electrolyser, water treatment, compression, storage, distribution, financing and maintenance. Low-priced power is helpful, but equipment utilisation is equally important: an expensive electrolyser running only occasionally may still make expensive hydrogen.

The sovereignty advantage is therefore control rather than automatic low cost. A producer with contracted renewable electricity and local customers can gain greater visibility over long-term energy costs than a business buying fuel whose price is set by global oil markets. Local demand can also support new industries and skills, while hydrogen-derived products such as green ammonia, methanol or synthetic aviation fuel may retain more value than exporting energy alone.

The strongest projects will link supply and demand from the outset—for example, a freight fleet, industrial user and renewable generator sharing infrastructure—rather than building production in the hope that a market later appears.

3. A Practical Route for Uses That Are Difficult to Electrify

Direct use of electricity is generally the most efficient way to displace fossil fuels. Battery-electric cars, heat pumps and electric boilers should not be converted to hydrogen merely for the sake of using hydrogen. EECA notes that electrolysis loses around 20–30% of its input energy, with further energy required for compression and storage. Converting hydrogen back into power or heat creates additional losses.

However, not every energy use is easily served by a cable or a battery. Hydrogen's strategic value lies in these harder applications:

• Fuel cell transport
  A fuel cell combines hydrogen with oxygen to produce electricity, which drives an electric motor. Refuelling can be rapid and the onboard fuel can offer advantages where heavy vehicles travel long distances, carry demanding payloads or operate for many hours each day. Likely applications include selected heavy-freight routes, buses, specialist vehicles, port equipment and potentially parts of the marine and aviation sectors. The test is operational: hydrogen should be used where range, payload, refuelling time or utilisation makes a battery-only solution impractical.
• Stationary and remote power
  A fuel cell can turn stored hydrogen into quiet, dispatchable electricity, with water as the principal point-of-use product. Paired with renewable generation and a battery, it can supply longer-duration backup for telecommunications, emergency facilities, remote sites and microgrids. The battery deals efficiently with rapid changes and routine cycling; hydrogen preserves a larger reserve for extended shortages.
• Combustion engines and turbines
  Hydrogen combustion can be used in suitably designed or converted engines and turbines for transport, mechanical power or electricity generation. Hydrogen may also be blended with another fuel during a transition. Combustion can reuse some familiar engine concepts and may suit high-load or rugged applications, but it is usually less efficient than a fuel cell and can form nitrogen oxides, so combustion design and emissions control matter.
• Industrial heat
  Hydrogen combustion could provide high-temperature heat where direct electric technologies are technically difficult or where a stored fuel is operationally important. It should be compared with electric boilers, heat pumps, electrode heating, biomass and thermal storage rather than treated as the default renewable heat source.
• Production processes and derived fuels
  Hydrogen is a chemical feedstock as well as an energy carrier. It can be used to manufacture ammonia and fertiliser, methanol, renewable hydrocarbons and synthetic aviation or marine fuels. It may also help reduce emissions from some metals, minerals and chemical processes. These uses can create a dependable industrial customer for hydrogen and embed renewable energy in products that are easier to store or export.

Turning Sovereignty into a Practical Pathway

New Zealand will not achieve fuel sovereignty simply by installing electrolysers. It requires a coordinated pathway:

• build additional renewable generation and the networks needed to deliver it;
• use energy efficiency and direct electrification wherever they are the better solution;
• establish reliable hydrogen demand before scaling production;
• develop fit-for-purpose storage, distribution and refuelling infrastructure;
• apply clear safety, skills, certification and emergency-response standards;
• locate early projects where several users can share infrastructure; and
• retain a diverse mix of energy sources rather than replacing one dependency with another.

Hydrogen production must also be timed intelligently. Running electrolysers during electricity scarcity could raise costs and worsen security. Operating flexibly during renewable abundance—and developing new generation alongside new hydrogen demand—can strengthen both the electricity and fuel systems.

Sovereignty Through Choice

The three central benefits are clear: greater resilience against overseas disruption, more control over energy costs and local economic value, and a credible low-emissions fuel for activities that cannot readily use electricity directly.

Hydrogen is not the entire answer, but it can provide something New Zealand currently lacks at scale: a locally produced, storable and versatile fuel made from domestic renewable energy. It can power electric drivetrains through fuel cells, provide resilient stationary electricity, fuel suitably designed combustion equipment, deliver industrial heat and become an ingredient in higher-value products.

Energy sovereignty ultimately means preserving choice. A New Zealand that can draw on renewable electricity, batteries, sustainable biofuels, hydrogen and a measured reserve of conventional fuels will be better protected than one dependent on a single technology or a distant supply chain. Used selectively and developed alongside new renewable generation, hydrogen can help turn the country's natural energy resources into lasting security, economic capability and lower-emissions production.