Green Hydrogen Production Location Significantly Impacts Environmental Footprint

Why It Matters

Understanding these location-specific impacts is critical for strategic planning in the burgeoning green hydrogen sector. Designers and engineers can leverage this knowledge to optimize facility placement, thereby minimizing environmental burdens and maximizing the sustainability credentials of green hydrogen projects.

Key Finding

The study found that where green hydrogen is produced significantly affects its environmental impact, with some locations being much more sustainable than others, largely due to the performance of solar panels and the energy efficiency of the electrolyzer.

Key Findings

• Production location is a crucial factor in determining the environmental outcomes of green hydrogen production.
• Tabuk exhibited the lowest environmental impacts across all assessed categories, while Dammam showed the highest.
• PV modules and battery storage were identified as the primary contributors to global warming potential.
• PV module efficiency and electrolyzer specific energy consumption were the most influential parameters.

Research Evidence

Aim: To comparatively assess the environmental footprint of green hydrogen production using photovoltaic (PV) energy and a proton exchange membrane (PEM) electrolyzer across different cities in Saudi Arabia.

Method: Life Cycle Assessment (LCA)

Procedure: A cradle-to-gate LCA was conducted using the ReCiPe 2016 Midpoint (H) method to evaluate environmental impacts, including global warming potential, for green hydrogen production in various Saudi Arabian cities. Sensitivity and uncertainty analyses were performed to identify key influencing factors and confirm findings.

Context: Green hydrogen production using PV and PEM electrolyzers in Saudi Arabia.

Design Principle

Optimize the environmental performance of energy systems by considering the geographical context and the embodied impacts of key components.

How to Apply

Before committing to a production site for a green hydrogen project, conduct a localized LCA to understand the specific environmental trade-offs associated with that location and the chosen technology.

Limitations

The study focused on a specific technology (PV and PEM electrolyzer) and geographical region (Saudi Arabia). Results may vary with different technologies or in different climatic conditions.

Student Guide (IB Design Technology)

Simple Explanation: Where you make green hydrogen matters a lot for the environment. Some places are better than others because of the sun and how efficient the equipment is.

Why This Matters: This research shows that even with 'green' technologies, the choices you make about location and specific components can have a big impact on how sustainable your final product or system is.

Critical Thinking: If a location has excellent solar resources but requires significant infrastructure development (e.g., new transmission lines), how does this offset the initial environmental benefits of green hydrogen production?

IA-Ready Paragraph: This research highlights the critical influence of production location on the environmental performance of green hydrogen. By analyzing various cities in Saudi Arabia, the study found significant differences in global warming potential, primarily driven by the efficiency of photovoltaic modules and electrolyzer systems. This underscores the importance of site-specific assessments in sustainable design, advocating for the selection of locations that optimize resource availability and minimize environmental burdens throughout the product's life cycle.

Project Tips

• When choosing a location for your design project involving energy production, consider the environmental impact of that specific location.
• Research the efficiency of different components (like solar panels or batteries) and how they contribute to the overall environmental footprint.

How to Use in IA

• Use this study to justify the selection of a specific location for your design project, explaining how it minimizes environmental impact.
• Reference the findings on PV module and electrolyzer efficiency when discussing material choices or system optimization in your design.

Examiner Tips

• Demonstrate an understanding that 'green' solutions are not inherently perfect and require careful consideration of their entire life cycle and context.
• Show how you've applied location-specific data or considerations to your design choices.

Independent Variable: ["Production location (city)","PV module efficiency","Electrolyzer specific energy consumption"]

Dependent Variable: ["Global warming potential (kg CO2-eq/kg H2)","Other environmental impact categories"]

Controlled Variables: ["Technology type (PV + PEM electrolyzer)","Life cycle assessment methodology (ReCiPe 2016 Midpoint (H))","Cradle-to-gate scope"]

Strengths

• Comprehensive LCA methodology applied.
• Inclusion of sensitivity and uncertainty analyses to validate findings.

Critical Questions

• How would the results change if different electrolyzer technologies (e.g., alkaline, SOEC) were considered?
• What are the economic implications of choosing a location with lower environmental impact but potentially higher initial setup costs?

Extended Essay Application

• Investigate the life cycle assessment of a renewable energy system for a specific community, considering local environmental factors and resource availability.
• Explore the environmental trade-offs of different material choices for energy storage systems based on their manufacturing location and supply chain.

Source

Comparative life cycle assessment of green hydrogen production across cities in Saudi Arabia · Discover Sustainability · 2026 · 10.1007/s43621-025-02560-4