Green hydrogen is one of the great assets for the mobility of the future. Its production does not expel polluting emissions and the hydrogen charge in a vehicle is of a time similar to that of fossil fuels. The problem, in this case, is the transport of hydrogen. In order to solve it, The CSIC has designed the first public hydrogeneration plant for Spain that, in addition, generates hydrogen itself. However, at the moment its capacity is very limited.
Electrolysis is used to get green hydrogen. Electricity (obtained from renewable sources) separates hydrogen and oxygen molecules from water. In this way, hydrogen can be loaded into the tank of the vehicle in question and moved through the use of a fuel cell. Only water is expelled through its exhaust pipes and, therefore, the vehicle moves without emitting any polluting substance.
So that CO2 is not expelled throughout the process and, therefore, we can speak of green hydrogen, it is essential to use clean energy sources throughout the process. This represents a problem in the automotive sector that the CSIC assures that they have solved with a green, public and self-sufficient hydrogeneration to be launched in 2022.
Researchers from #CSIC they drive the first #hydrogenate utility that will use green hydrogen generated on-site with solar energy. The technology, which will be launched at the end of 2022, will supply trucks, cars and warehouses.
— CSIC (@CSIC) January 12, 2022
The first green and self-sufficient hydropower plant in Spain
For now the main problem with hydrogen is its transportHence, it has been proposed to create a network of gas pipelines to take it to the hydrogenerators, reducing costs. Or that hydrogen is produced in the same place where it is to be consumed in the form of electricity or stored in another warehouse. A solution that has already been designed for homes and whose model is the same as that devised by the CSIC.
The hydrogeneration developed by the institute uses photovoltaic panels as electricity supply. The collected light serves to drive electrolysis and generate hydrogen in the same station. The user only has to charge the car as if it were a normal gas station. The development is possible thanks to a collaboration with the service station company Zoilo Ríos and the first installation will be available at the end of 2022 at the company’s El Cisne station on the A-2 highway, near Zaragoza.
The researchers promise that this new hydrogeneration will allow knowing the radiation it will receive in the next 48/72 hours, so it will be possible to know the availability of hydrogen that the station will keep inside. These data can be consulted on the Internet.
Just two trucks and 10 cars
But this self-sufficient green hydropower has a first problem. The researchers assure that the capacity of hydrogen produced will be at least 60 kg per day. An amount clearly insufficient for intensive use in the future.
To give us an idea, the tank of a Toyota Mirai is 5.6 kg of hydrogen, which would barely allow 10 refills a day. The Hyundai XCIENT hydrogen truck keeps tanks inside capable of accumulating up to 32.09 kg, which it would not allow the loading of two vehicles to be completed of these dimensions in the same day.