Hacia una modelo de costes representativo para la producción de biohidrógeno.

Representative cost model for producing biohydrogen

Post divulgativo - 27 Jun 2024
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Autor

José Ignacio Linares

Director de la Cátedra Fundación Repsol en Transición Energética en la Universidad Pontificia Comillas (ICAI)

José Ignacio

A promising technology to reduce industrial emissions and decarbonise sectors that are difficult to electrify.

Biohydrogen production through biomethane reforming with carbon capture and storage (CCS) is gaining momentum as a key solution for industrial sectors that are struggling to electrify. This technology has the potential to generate negative CO2 emissions, making it an important tool in the fight against climate change. Despite the maturity of this technology, which is currently used in the production of grey and blue hydrogen, a detailed cost model that considers the entire supply chain is currently lacking. This publication seeks to delve deeper into these issues.

Golden biohydrogen: What is it and how does it contribute to sustainability?

Biohydrogen is produced from biomethane, a renewable source, through a methane reforming process coupled with a carbon capture process. This combination not only reduces CO2 emissions, but could generate a negative carbon balance, actively contributing to the reduction of greenhouse gases.

 

 

Biohydrogen production costs: comparison with other sources

The main challenge for its large-scale implementation is the cost of production. Golden biohydrogen, with its capacity to capture carbon, is between 1.84 and 2.88 euros/kg, depending on factors such as the cost of natural gas. This makes it competitive with grey hydrogen (1.47 euros/kg) and blue hydrogen (1.93 euros/kg).

Despite these figures, the integration of biohydrogen with surplus electricity from renewable sources can make the cost of production more competitive, especially if the energy surpluses from wind and photovoltaic installations are used.

Advantages of golden biohydrogen for industry.

Golden biohydrogen offers important benefits for industries:

  • 💰 Cost Reduction: Using surplus electricity at low cost can make hydrogen production cheaper.
  • ⚡ Energy Efficiency: By taking advantage of surplus renewable energy, energy waste is reduced.
  • 🔥 Cogeneration: The process also generates oxygen and heat, useful products for industries.
  • 🌍 Negative CO2 Emissions: It helps in decarbonization by capturing carbon during its production.

A future with biohydrogen: sustainability and competitiveness

Biohydrogen is positioned as a key solution in the transition to a future with fewer emissions. By integrating hydrogen production with intermittent renewable energies, this technology could reduce production costs, while promoting industrial decarbonization.

Want to know more? Download the full document and discover how this technology is transforming the energy industry.

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