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The energy transition to prevent global warming is the main concern. Climatic change effects show a catastrophic view to the word through the increase of temperature which promotes fire like in Siberia or ices melts by trigging the extinction of polar bears in the future, also adding the flooding in Norway. Thus, it is important to trait sectors the most polluters such as transport, industries, and residential tertiary sectors. In the perspective to reduce their dependence on fossil fuels. However, the frequently used sources of energy are unstable. They require an appropriate clean storage system and the technology of energy storage relevant as green hydrogen. In this article, we focus first on the creation complete of the model of production chain for green hydrogen by the fuel cell PEM. Then, the application of the model in one technical-economic study for energetic consumption HVAC for a hotel. We will consider the usage of thermic power resulting from the chemical reaction of the system, those powers allow us to demonstrate that the fuel cell PEM presents the brilliant performance compare to electrolysis. Through that thermic power from the fuel cells, we will expose the fact it is possible to avoid the utilization of natural gas and electricity structure for domestic hot water. This technical-economic study show that green hydrogen technology can be worthwhile for the short or middle term for the hotel industry.

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Mathematical modeling of re-electrification by green hydrogen storage through the PEM fuel cell integrating a 10-year economic study applied to a hotel