Abstract
This study evaluated three blue hydrogen production processes − solar-grid powered, wind-powered, and thermal power grid (TPG) − considering the context of Hong Kong, SAR, China. A process sustainability analysis was performed based on energy, economic, and environmental (3E) factors. The energy efficiency analysis indicates that the TPG system is the most energy-efficient with 64% efficiency, followed by the wind power system at 63% and the hybrid solar-grid powered system at 60%. The economic analysis results indicate that the levelized cost of hydrogen (LCH) is 2.165 $/kg for the TPG system, 2.132 $/kg for the hybrid solar-grid powered system, and 2.060 $/kg for the wind power system. The environmental assessment suggests that wind powered are eco-friendly with a unit point total (µPt) of 1.11, compared to the solar-grid 1.50 µPt and TPG system's 1.70 µPt. Therefore, 3E analysis proposes wind powered process is more sustainable for blue H2 production.
| Original language | English |
|---|---|
| Article number | 131798 |
| Number of pages | 13 |
| Journal | Bioresource Technology |
| Volume | 418 |
| DOIs | |
| Publication status | Published - Feb 2025 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy -
SDG 13 Climate Action
Keywords
- 3E analysis
- Biomass gasification
- Blue hydrogen
- Carbon neutrality
- Sustainability
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal
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