The work aims to verify the economic feasibility of renewable hybrid systems for hydrogen production and storage in the Brazilian electric power sector. The methodology applied is based on economic cost analyses of the two largest wind and solar photovoltaic plants in the country.
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The model concludes that the solar and wind hybrid system for hydrogen production and storage is not yet viable in Brazil. In addition, the CAPEX of electrolysers and storage tanks and their operating losses are key points for the deployment of these systems.
Renewable hybrid systems with hydrogen are current economic unviable in Brazil. Green hydrogen produced from curtailment events are current economic not feasible. To produce hydrogen economically viable, the plants should operate above 3000 h. The CAPEX should cost less than USD 650/kWe to store hydrogen economically viable.
The CAPEX should cost less than USD 650/kWe to store hydrogen economically viable. It is more profitable trading hydrogen than transforming it back into power. The work aims to verify the economic feasibility of renewable hybrid systems for hydrogen production and storage in the Brazilian electric power sector.
Several studies have demonstrated the feasibility of hybrid systems with combined solar PV, wind power, fuel cell, electrolyser, and hydrogen storage systems [, , , , , ].
First, the capacity factor of the wind power plants, on average, become superior then the capacity factor of the solar power plants in Brazil. The model concludes that the solar and wind hybrid system for hydrogen production and storage is not yet viable in Brazil.
The schematic of the wind and solar PV hybrid system for hydrogen production and storage, proposed in Fig. 1, consists of electricity supply (wind or solar PV), electrolyser, hydrogen storage tank for a long time energy storage, fuel cell and a power inverter (Direct Current (DC)/Alternating Current (AC)) .
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