Optimal energy cost and economic analysis of a residential grid-interactive solar PV system- case of eThekwini municipality in South Africa

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• 作者：B.P. Numbi ; ^{NumbiB@mut.ac.za} ; S.J. Malinga
• 关键词：Grid-interactive solar PV ; Optimal energy cost ; Economic analysis ; Residential electricity customers ; Feed-in tariff
• 刊名：Applied Energy
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：186
• 期：part_P1
• 页码：28-45
• 全文大小：1327 K
• 卷排序：186

文摘

Optimal energy cost control of a residential grid-interactive PV system is modeled. There is potential of more than 92% cost saving and payback period of less than 14 years. The higher the feed-in tariff (FIT) the lesser the need for a battery bank. Use of battery storage improves the cost effectiveness with low FITs unlike with high FITs. The higher the grid electricity price, the higher the profitability of the system.