布鲁盖尔-Navigating-through-hydrogen_24页_605kb

Summary of "Navigating through hydrogen"

Core Content

Hydrogen is viewed as a key player in the European Union's strategy to achieve net-zero greenhouse gas emissions by 2050. It is considered a viable solution for sectors with hard-to-reduce emissions, an energy storage medium, and a fallback option in case of fossil fuel import disruptions. However, current hydrogen production in the EU is heavily reliant on fossil fuels and is thus emissions-intensive.

Main Views

• Hydrogen as a Decarbonisation Tool: Hydrogen can replace fossil fuels in certain sectors and reduce associated carbon emissions, especially if produced via electrolysis using renewable energy or with carbon capture and storage (CCS).
• Supply and Demand Uncertainty: The demand for hydrogen in 2050 could range from 3% to 20% of final energy demand, depending on technological development, policy support, and market conditions.
• Cost Competitiveness: The cost of hydrogen production is highly dependent on input prices (electricity, natural gas, carbon), capital costs, and technological efficiency. Electrolysis is becoming more competitive as renewable energy prices fall.
• Policy Role: Policymakers must focus on reducing the cost of clean hydrogen production, supporting early deployment, and strengthening climate policies to ensure hydrogen contributes to decarbonisation in suitable sectors.

Key Information

Hydrogen Production

• Current Production: Over 95% of hydrogen in the EU is produced from fossil fuels, with less than 5% via electrolysis.
• Low-Carbon Pathways:
  • Electrolysis: Requires renewable electricity; becomes more competitive as emissions from electricity fall.
  • CCS with Methane Reforming: Can reduce emissions significantly but is not a long-term priority in the EU hydrogen strategy.
• Alternative Methods: Include autothermal reforming with CCS, methane pyrolysis, biomass gasification, and solar-based technologies, though these are not yet economically viable or widely adopted.

Hydrogen Imports

• Potential for Imports: Hydrogen could be imported from regions with low renewable energy costs and high production capacity.
• Economic Viability: Imports make sense only if the cost of renewable energy in the exporting country is significantly lower than in the EU and if the cost of transporting hydrogen is not prohibitive.
• Ammonia as a Transport Medium: Hydrogen can be converted into ammonia for easier storage and transport, which may be more practical than transporting it as a gas.

Hydrogen Demand by Sector

• Transport:

  • Passenger Vehicles: Hydrogen has limited potential due to the dominance of electric vehicles. Demand is estimated at 0–140 TWh.
  • Heavy-Duty Vehicles: Hydrogen is more suitable due to its energy density and faster refuelling. Demand could be 10–200 TWh.
  • Light Commercial Vehicles: Sit between passenger and heavy-duty vehicles. Hydrogen demand is estimated at 0–60 TWh.
  • Rail: Electrification is the preferred option, but hydrogen may be used on non-electrified tracks. Demand is likely to be very low.
  • Shipping: Hydrogen fuel cells may be viable for short-distance shipping, while liquefied hydrogen and ammonia are more promising for long-distance shipping. Demand could be 20–120 TWh.

• Industrial Applications:

  • Ammonia & Methanol Production: Already use hydrogen from natural gas. High potential for continued use.
  • Steel Production: High potential for hydrogen to replace coal. Currently uses fossil-based hydrogen but could shift to low-carbon hydrogen.
  • Oil Refining: Uses hydrogen from natural gas. Limited potential for hydrogen to replace fossil fuels.

• Residential Heating: Hydrogen could be used as a substitute for natural gas, but faces competition from electricity. Demand is estimated at 0–150 TWh.

Conclusion

• The future role of hydrogen in the EU's energy system is uncertain and depends on technological progress, policy support, and cost dynamics.
• Electrification is expected to be the main driver of decarbonisation, while hydrogen will play a niche role in sectors where electricity is not feasible or cost-effective.
• To ensure hydrogen contributes to the EU's climate goals, public policy should focus on reducing production costs, supporting early deployment, and tightening emissions regulations to promote clean hydrogen.