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Economic Analysis for Residential Solar PV Systems Based on Different Demand Charge Tariffs
Sharif Univ Technol, Dept Mech Engn, Tehran 79417, Iran..
Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Dept Energy, Kerman 76169, Iran..
2018 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 11, no 12, article id 3271Article in journal (Refereed) Published
Abstract [en]

It is well known that the use of photovoltaic (PV) systems helps to preserve the environment, produce lower levels of greenhouse gases (GHGs), and reduce global warming, however, whether it is economically profitable for customers or not is highly debatable. This paper aims to address this issue. To be comprehensive, three different types of buildings are considered as case studies. Then, these three buildings are modeled in EnergyPlus to determine the rate of energy consumption. Afterward, comparisons of various solar system sizes based on economic parameters such as the internal rate of return, the net present value, payback period and profitability indexing for various-sized PV systems are carried out. The results show that by the demand charge tariffs, using PV systems has no economic justification. It has been shown that even with neglecting further costs of the PV system like maintenance, by demand charge tariffs, it is not economically beneficial for customers to use the PV systems. Profitability index of all three buildings with various PV power systems is between 0.2 to 0.8, which are by no means is desirable. Moreover, it was found that bigger solar systems are less cost-effective in the presence of demand charges.

Place, publisher, year, edition, pages
MDPI , 2018. Vol. 11, no 12, article id 3271
Keywords [en]
photovoltaic (PV) systems, EnergyPlus, economic analysis, energy in buildings
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-242996DOI: 10.3390/en11123271ISI: 000455358300032Scopus ID: 2-s2.0-85059285464OAI: oai:DiVA.org:kth-242996DiVA, id: diva2:1284749
Note

QC 20190201

Available from: 2019-02-01 Created: 2019-02-01 Last updated: 2019-02-01Bibliographically approved

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CiteExportLink to record
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  • apa
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