Photo: Marika Khabazi
Last month, Hiringa Energy opened the country's first hydrogen network, running from South Auckland to Palmerston North.
Hydrogen remains more expensive than diesel as a trucking fuel, and the cost of getting a hydrogen powered truck on the road is higher. They are about double the cost of a diesel equivalent truck.
But some transport businesses are beginning to make the investment - such as HW Richardson in Invercargill, and the TR Group in Wellington.
There are six hydrogen trucks in the country, one bus and a handful of cars.
Kathryn speaks with Andrew Clennett, Hiringa Energy's chief executive, and James Smith , general manager of policy and advocacy at the National Road Carriers Association.
