| Texto completo | |
| Autor(es): |
Santana, Jose Carlos Curvelo
;
Machado, Pedro Gerber
;
Nascimento, Claudio Augusto Oller do
;
Ribeiro, Celma de Oliveira
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ENERGIES; v. 16, n. 9, p. 21-pg., 2023-04-28. |
| Resumo | |
The Brazilian energy grid is considered as one of the cleanest in the world, because it is composed of more than 80% of renewable energy sources. This work aimed to apply the levelized costs (LCOH) and environmental cost accounting techniques to demonstrate the feasibility of producing hydrogen (H-2) by alkaline electrolysis powered by the Brazilian energy grid. A project of hydrogen production, with a lifetime of 20 years, had been evaluated by economical and sensitivity analysis. The production capacity (8.89 to 46.67 kg H-2/h), production volume (25 to 100%), hydrogen sale price (1 to 5 USD/kg H-2) and the MAR rate were varied. Results showed that at 2 USD/kg H-2, all H-2 production plant sizes are economically viable. On this condition, a payback of fewer than 4 years, an IRR greater than 31, a break-even point between 56 and 68% of the production volume and a ROI above 400% were found. The sensitivity analysis showed that the best economic condition was found at 35.56 kg H-2/h of the plant size, which generated a net present value of USD 10.4 million. The cost of hydrogen varied between 1.26 and 1.64 USD/kg and a LCOH of 37.76 to 48.71 USD/MWh. LCA analysis showed that the hydrogen production project mitigated from 26 to 131 thousand tons of CO2, under the conditions studied. (AU) | |
| Processo FAPESP: | 20/15230-5 - Centro de Pesquisa e Inovação de Gases de Efeito Estufa - RCG2I |
| Beneficiário: | Julio Romano Meneghini |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia |