Hydrogen thermal energy storage system

What is thermal energy storage?

Thermal energy storage (TES) systems provide a means to enhance the energy efficiency and cost-effectiveness of metal hydride-based storage by effectively coupling thermal management with hydrogen storage processes.

Why is hydrogen storage important?

Thus, hydrogen storage integrates electricity and industrial sectors, enhancing flexibility in the future energy system, particularly in the context of implementing HYBRIT. Energy transition plays a crucial role in reaching Sweden's national climate goals.

How efficient is hydrogen storage?

However, efficient hydrogen storage remains a significant technical challenge. Conventional storage methods, such as compressed and liquefied hydrogen, suffer from energy losses and limited gravimetric and volumetric energy densities, highlighting the need for innovative storage solutions.

Is TES a good alternative to hydrogen storage?

Since TES and HP are already part of the Swedish energy system, enhancing PtH coupled with TES is a better alternative than installing electrolysers and hydrogen storage in an energy system without considerable hydrogen demand.

What is hydrogen energy storage?

Hydrogen energy storage utilizes electrolytic cells and fuel cells for the conversion between electricity and hydrogen energy. For hydrogen production, the proton exchange membrane electrolysis cell (PEMEC) is renowned for its high electrolysis efficiency (58 %–70 % ) and economic advantages .

What is metal hydrides coupled with thermal energy storage?

Overview on numerical and experimental studies on metal hydrides coupled with thermal energy storage. The system stores 37% of the heat generated during hydrogen absorption. Optimized system with eight cooling tubes. Sensible TES reduces the need for external heating.