We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Life Cycle Climate Change Impact of a Cost-Optimal HVDC Connection to Import Solar Energy from Australia to Singapore.
- Authors
Ramachandran, Srikkanth; Siala, Kais; de La Rúa, Cristina; Massier, Tobias; Ahmed, Arif; Hamacher, Thomas
- Abstract
This paper aims to evaluate the life cycle greenhouse gas (GHG) emissions of importing electrical power into Singapore, generated from a large-scale solar photovoltaic (PV) power plant in Australia, through a long-distance subsea high-voltage direct current (HVDC) cable. A cost optimization model was developed to estimate the capacities of the system components. A comprehensive life cycle assessment model was built to estimate emissions of manufacturing and use of these components. Our evaluation shows that, for covering one fifth of Singapore's electrical energy needs, a system with an installed capacity of 13 G W P V , 17 GWh battery storage and 3.2 G W subsea cable is required. The life cycle GHG emissions of such a system are estimated to be 110 g CO 2 eq/ kWh , with the majority coming from the manufacturing of solar PV panels. Cable manufacturing does not contribute largely toward GHG emissions. By varying full-load hours and cable lengths, it was assessed that sites closer to Singapore might provide the same energy at same/lower carbon footprint and reduced cost, despite the lower insolation as compared to Australia. However, these sites could cause greater emissions from land use changes than the deserts of Australia, offsetting the advantages of a shorter HVDC cable.
- Subjects
SINGAPORE; AUSTRALIA; SOLAR energy; SUBMARINE cables; CLIMATE change; ELECTRICAL energy; SOLAR panels; SOLAR chimneys
- Publication
Energies (19961073), 2021, Vol 14, Issue 21, p7178
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en14217178