‘Green hydrogen’ is hydrogen which is generated from renewable electricity by electrolysis. ‘Brown hydrogen’ is that which is generated from fossil fuel. In this paper, the author discusses the role that 'green hydrogen' can play in helping New Zealand decrease carbon emissions.
Recommendations for policy makers
- New Zealand should explore a green hydrogen export industry.
- New Zealand should explore the potential for hydrogen to decarbonise rail networks.
- ‘Green hydrogen’ is defined by its seed fuel. Only hydrogen generated from renewable electricity should be classified as green hydrogen. New uses for gas are not a useful direction for climate-conscious policy, and in practice ‘100% carbon capture’ promises on new projects frequently do not deliver.
- Green hydrogen should be analysed separately and more aggressively supported by government than the hydrogen generated from fossil fuel.
- New Zealand should work with other countries internationally who share interests in developing green hydrogen.