Hydrogen is becoming one of the key energy carriers for the future to deal with the challenge of climate change and achieve the goals of the Paris Agreement, also because it can help to compensate for the intermittency of renewable energy resources, while it can be sustainably produced from e.g. solar and wind power through the electrolysis of water. Large-scale usage of H2, however, will necessitate its storage at massive scales. Multiple H2 storage options exist, among which through the production and use of NaBH4, associated with the regeneration of the spent fuel NaBO2.