Tushar Quddus, Zhang Guomin, Giustozzi Filippo, Bhuiyan Muhammed A, Hou Lei, Navaratnam Satheeskumar
School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC, 3001, Australia.
School of Engineering, RMIT University, GPO Box 2476, Melbourne, VIC, 3001, Australia.
J Environ Manage. 2023 Nov 15;346:119002. doi: 10.1016/j.jenvman.2023.119002. Epub 2023 Sep 19.
This study assesses the financial viability and environmental evaluation of Photovoltaic (PV) panels from the perspective of the recent economic recession due to the Russia-Ukraine war. The financial viability of PV installation is calculated based on the estimated price, solar rebates, feed-in tariff, energy supply cost, and other evaluation parameters available at the assessment time. This calculation implicitly assumes variable discount rates (4%, 7%, and 12%) to show how the future will unfold and its correlations with design parameters. Details of economic appraisal integrating current inflation, rebates, and incentives of solar systems have been analyzed for the first time in this study. Financial indicators reveal the advantages of installing a grid-connected solar system (SS) over a solar battery storage system (SSWB). Compared to other installation systems, the lowest payback (PB) and highest internal rate of return (IRR) are observed for a 7 kW grid-connected solar system. Relative uncertainties of solar installation systems represent the necessity of government subsidies (r = -0.602) for solar storage batteries. LCA signifies the energy-intensive process of manufacturing metallurgical-grade (MG) silicon is the primary cause of significant greenhouse gas (GHG) emissions and cumulative energy demand (CED) for PV panels. A potential amount of metal and fossil fuels is depleted for interconnective components of solar installation systems. Amorphous solar panels exhibit lower impacts than polycrystalline, but further upgradation in service life is required to become cost-effective and cope with current inflation.
本研究从俄乌战争导致的近期经济衰退角度评估了光伏（PV）板的财务可行性和环境评价。光伏装置的财务可行性是根据评估时的估计价格、太阳能回扣、上网电价、能源供应成本及其他可用评价参数计算得出的。该计算隐含地假设了可变贴现率（4%、7%和12%），以展示未来的发展情况及其与设计参数的相关性。本研究首次分析了整合当前通货膨胀、太阳能系统回扣和激励措施的经济评估细节。财务指标揭示了安装并网太阳能系统（SS）相对于太阳能电池储能系统（SSWB）的优势。与其他安装系统相比，7千瓦并网太阳能系统的投资回收期（PB）最低，内部收益率（IRR）最高。太阳能安装系统的相对不确定性表明了政府对太阳能储能电池补贴（r = -0.602）的必要性。生命周期评估表明，制造冶金级（MG）硅的能源密集型过程是光伏板大量温室气体（GHG）排放和累计能源需求（CED）的主要原因。太阳能安装系统的互连部件消耗了一定数量的金属和化石燃料。非晶硅太阳能板的影响比多晶硅太阳能板小，但需要进一步提高使用寿命才能具有成本效益并应对当前的通货膨胀。
