(228f) Impact of Technology Development and Climate Characteristics on the Joint Expansion Planning of Green Hydrogen and Renewable Energy

For the sustainable transition to the low carbon society, electricity from renewable energy is a must, whose generation is heavily dependent on the weather conditions, which exhibit high intermittency [1]. One option to alleviate this intermittency is the utilization of a hydrogen system including production, storage, and transportation facilities. Especially, green hydrogen produced from the electrolysis of water is attracting a significant attention as it produces high-purity hydrogen without carbon emissions [2]. Despite a high synergistic potential between the renewable electricity and green hydrogen productions, extensive study is rather scarce, where expansion planning problems for such productions are jointly considered. Currently, joint expansion planning for hydrogen and electricity is typically addressed in the connection with the existing infrastructure (e.g. fossil fuel-based electricity, grey hydrogen) [3].

To this end, we propose a joint planning model considering generation, storage, transmission and transportation of renewable electricity and green hydrogen. In the proposed model, the planning is formulated as a mixed-integer linear programming (MILP) problem, where a global optimum is guaranteed [4]. The objective of problem is the minimization of the overall cost (for both electricity and hydrogen systems), while satisfying both electricity and hydrogen demands. The major decision variables are the specifications for facility capacities (for different types), and hourly operational decisions of each facility. We initially consider three different options for renewable electricity generation (i.e. on-shore and off-shore wind turbines, and photovoltaic panel) for the joint expansion planning in South Korea to illustrate the application of the proposed model.

Then, we conduct several case studies to provide deeper insights into the joint development of renewable electricity and green hydrogen infrastructures. Firs, we add an alternative option for the generation part, namely bio gas steam reforming, to evaluate its impact. Also, we consider additional regions with vastly different climatic and regional characteristics (compared to South Korea) to analyze their influences. Finally, a range of policy and technology scenarios are considered to provide some future outlooks.

REFERENCES

[1] Reza Artis, Mojtaba Shivaie, Philip D. Weinsier (2023). A flexibility-based multi-objective model for contingency-constrained transmission expansion planning incorporating large-scale hydrogen/compressed-air energy storage systems and wind/solar farms. Journal of Energy Storage, 70, 108086.

[2] N.S. Hassan, A.A. Jalil, S. Rajendran, N.F. Khusnun, M.B. Bahari, A. Johari, M.J. Kamaruddin, M. Ismail (2024). Recent review and evaluation of green hydrogen production via water electrolysis for a sustainable and clean energy society. International Journal of Hydrogen Energy, 52, Part B, Pages 420-441.

[3] T. Klatzer, U. Bachhiesl, S. Wogrin (2022). State-of-the-art expansion planning of integrated power, natural gas, and hydrogen systems. International Journal of Hydrogen Energy, 47(47), 20585-20603.

[4] Luca Urbanucci (2018). Limits and potentials of Mixed Integer Linear Programming methods for optimization of polygeneration energy systems. Energy Procedia, 148, 1199-1205.