The potential of hydrogen production from high and low-temperature electrolysis methods using solar and nuclear energy sources: the transition to a hydrogen economy in Brazil

Brazil has great potential for diversification and decarbonization of its energy matrix, with the insertion of a clean and renewable energy source such as hydrogen. This paper seeks to evaluate the surplus energy potential of solar and nuclear plants installed in the country for the production of green and purple hydrogen using high and low temperature elec-trolysis methods. Based on official reports and databases of energy production and de-mand, the results indicated that the total potential of surplus solar energy is equal to 4.29E+07 (kWh.d-1). Further, the total potential of electricity production from the hydrogen obtained through surplus solar energy was equivalent to1.87E+07 (kWh.d-1); and the total cost of producing solar hydrogen is equal to 1.07E+03 (USD.kWh-1). In conclusion, the study contributed to demonstrate the pathways to the establishment of strategies that assist the transition to a hydrogen economy in Brazil.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.