Green hydrogen
Green hydrogen. Image: Petrmalinak Shutterstock

When hydrogen is produced from renewable sources, it is an effective solution for “cleaning up” energy-intensive industries, trucks, aviation, shipping and heating.

A new study published on the green hydrogen potential (from renewable energies) and blue hydrogen (from fossils with CO2 capture).

When the dream of a hydrogen-based economy seemed to have faded, it suddenly regained momentum.

With the increasing introduction of renewable energies and the new process of electrification of consumption, green hydrogen has left its experimental niche to gain a foothold in the market. But what are the real potentials of this fuel in the global process of decarbonization? The answer comes from new study from the International Renewable Energy Agency IRENA.

The document analyzes the role of hydrogen in the global energy transition where it distinguishes the supply options into three categories: gray hydrogen (based on fossil fuels), blue hydrogen (based on fossil fuels but with CO2 capture) e green hydrogen (based on renewable energies).

IRENA predicts that 8% of the world’s final energy consumption could be linked to hydrogen by 2050. But to be useful in reducing emissions that affect climate change, its synthesis must necessarily be sustainable .

Según el inform, el hidrógeno verde tiene un alto potencial de uso, especialmente en los sectors considerados difíciles de carbonizar, como las industrias más intensivas en el consumo de energía, el sector químico y el sector del transporte comercial, así como la aviación y el maritime transport.

And not just that. Electrolysis (factories that, using electricity, transform water molecules into hydrogen and oxygen) can provide flexibility on demand by facilitating the penetration of more wind and photovoltaic energy into the network, a feature that is already enabling the sector to develop. from current megawatts to gigawatts in more advanced European energy markets.

The document does not even exclude a possible synergy between the distribution of green and blue hydrogen, given the possibility of economies of scale in the use of vehicles or in logistics.

But, the authors warn, “the hydrogen-based energy transition will not happen overnightThe sector will need adequate regulation and financing, as well as new supply infrastructure.