Water conservation implications for decarbonizing non-electric energy supply: A hybrid life-cycle analysis.
J Environ Manage
; 219: 208-217, 2018 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-29738936
ABSTRACT
Low-carbon transition in the non-electric energy sector, which includes transport and heating energy, is necessary for achieving the 2⯰C target. Meanwhile, as non-electric energy accounts for over 60% of total water consumption in the energy supply sector, it is vital to understand future water trends in the context of decarbonization. However, few studies have focused on life-cycle water impacts for non-electric energy; besides, applying conventional LCA methodology to assess non-electric energy has limitations. In this paper, a Multi-Regional Hybrid Life-Cycle Assessment (MRHLCA) model is built to assess total CO2 emissions and water consumption of 6 non-electric energy technologies - transport energy from biofuel and gasoline, heat supply from natural gas, biogas, coal, and residual biomass, within 7 major emitting economies. We find that a shift to natural gas and residual biomass heating can help economies reduce 14-65% CO2 and save more than 21% water. However, developed and developing economies should take differentiated technical strategies. Then we apply scenarios from IMAGE model to demonstrate that if economies take cost-effective 2⯰C pathways, the water conservation synergy for the whole energy supply sector, including electricity, can also be achieved.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Abastecimento de Água
/
Conservação dos Recursos Hídricos
Idioma:
En
Revista:
J Environ Manage
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
China