EURO 2024 Copenhagen
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3361. Big hydro, two islands, one goal: Exploring New Zealand's path to Net-Zero with Green Hydrogen integration

Invited abstract in session TB-19: The role of storage in energy problems, stream OR in Energy.

Tuesday, 10:30-12:00
Room: 44 (building: 116)

Authors (first author is the speaker)

1. Rafaella Canessa
Civil and Natural Resources Engineering, University of Canterbury
2. Jannik Haas
Civil and Natural Resources Engineering, University of Canterbury
3. Rebecca Peer
Civil and Natural Resources Engineering, University of Canterbury
4. Manuel Wetzel
Energy Systems Analysis, German Aerospace Center (DLR)
5. Hans Christian Gils
German Aerospace Center (DLR), Institute of Networked Energy Systems

Abstract

Green hydrogen can play a crucial role in the energy transition but this role remains largely unquantified.
This work presents the adaptation of REMix, an energy capacity expansion optimisation tool, for New Zealand (REMix-NZ). With this, optimal pathways for achieving net-zero goals across energy sectors are evaluated. Unlike previous applications, REMix-NZ considers New Zealand's unique characteristics, including:
• High share of hydropower: The model leverages existing variable hydropower resources as the backbone while integrating additional renewables like wind and solar PV.
• Medium-sized islanded system: This allows for detailed analysis of optimal energy import and export strategies, particularly for green hydrogen and its derivatives.
We focus on the role and impact of green hydrogen, investigating its potential to decarbonise challenging sectors. This results in a large optimisation problem involving thousands of investments and millions of operation decision variables. The results illustrate the trade-offs and synergies between domestic energy needs and potential hydrogen exports, providing valuable insights for policymakers and stakeholders.

Keywords

Status: accepted

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