Hydrogen energy storage and other energy storage coordination and complementarity

Why is hydrogen storage important?

Hydrogen storage as large-capacity, flexible resources with high energy density can not only offer storage capacity for various durations with high energy density, but also effectively couple with other systems such as heat and gas . This can further improve power system flexibility and expand renewable energy consumption channels.

What is the optimal coordination problem of hydrogen and water storage?

The description of the case studies The optimal coordination problem of the HIES with the combination of hydrogen and water storage is tested based on a pilot low energy commercial building in Beijing with 3000 , as a typical energy system in the demand side. The design assumptions of the developed HIES in this building is shown in Table 1.

What is the power balance constraint in hydrogen energy storage system?

In the hydrogen energy storage system, the power balance constraint is as follows: e r (t) is the electricity consumption of the electrolyzer, l d r (t) is the demand of the superior grid, and f c r (t) is the power generation of the fuel cell.

Is the coordinated configuration of electricity and hydrogen storage more economic?

It can be found that the annual comprehensive cost and construction cost of scheme 1 are 10.351 % and 10.034 % lower than those of scheme 2, indicating that the coordinated configuration of electricity and hydrogen storage is more economic than the single configuration of hydrogen storage.

How does a hydrogen energy storage system work?

Through efficient processes such as water electrolysis, surplus electricity is converted into hydrogen energy and stored appropriately. As the day progresses and renewable energy generation continues to exceed immediate load demands, the hydrogen energy storage system within the alliance commences leveraging its diversified utilization advantages.

Can hybrid electricity and hydrogen storage reduce the deployment cost?

This paper proposes an optimal coordinated configuration method of the hybrid electricity and hydrogen storage for the EH-ES with high penetration of RESs to promote the renewable energy utilization and reduce the deployment cost, while meeting the power and hydrogen load demands even under the windless or light free weather.