Vol. 4, No. 1 (Winter 2017) 61-70   

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  Evaluation of Off-grid Hybrid Renewable Systems in the Four Climate Regions of Iran
S. Vahdatpour, S. Behzadfar, L. Siampour, E. Veisi and M. Jahangiri
( Received: October 04, 2017 – Accepted: February 02, 2018 )

Abstract    Renewable systems influence the process of supplying domestic electricity needs. Since uncontrolled use of fossil fuels is accompanied by global warming and environmental hazards, in addition to the danger of their depletion, and because most of the energy derived from these fuels is utilized in buildings, it will be useful to replace the current energy generation system by utilizing renewable energy sources. Although other researchers have dealt with issues such as solar energy (active and passive), wind turbines, and other methods for supplying domestic energy needs, studies on hybrid systems that include biomass have attracted significantly less interest. Therefore, considering the historical background and the potential of biomass in Iran, this article assesses the potential of using a hybrid solar cell/wind turbine/biomass system for supplying electricity needs of a residential building in each of the four Iranian climates. The question of which system based on renewable energies would be the most cost effective in each Iranian climate has not yet been studied. Results indicate that, based on cost-effectiveness, the ideal options are utilization of solar cells in the cold, warm and dry, and warm and humid climates, and use of systems based on biomass in the moderate and humid climates.


Keywords    Biogas, battery, converter, cost of energy (COE), total net present cost (Total NPC).


چکیده    انرژی­های تجدیدپذیر در فرآیند تامین برق بخش ساختمانی تاثیرگذار هستند. از آنجا که مصرف بی­رویه سوخت­های فسیلی علاوه بر خطر اتمام منابع، گرم شدن جو زمین و مخاطرات زیست­محیطی را نیز به همراه دارد و همچنین بیشترین مصرف این انرژی­ها در بخش ساختمان است، لذا جاگزین­سازی تولید انرژی با بهره­گیری از منابع تجدیدپذیر مثمر ثمرخواهد بود. اگرچه دیگر پژوهشگران در راستای تامین برق منازل مسکونی به مباحثی همچون انرژی­های خورشیدی (فعال و غیر فعال)، توربین بادی و سایر روش­ها پرداخته­اند؛ لیکن مطالعات سیستم­های هیبرید با زیست توده کمتر مورد توجه قرار گرفته است. لذا با توجه به سابقه تاریخی و پتانسیل زیست توده در ایران، دراین مقاله با استفاده از نرم­افزار HOMERبه پتانسیل­سنجی استفاده از یک سیستم هیبریدی خورشیدی/توربین باد/زیست­توده درگستره چهارگانه اقلیم ایران به­منظور تامین برق یک منزل مسکونی پرداخته شده است. این مساله که در هر اقلیم ایران، کدام سیستم مبتنی بر انرژی­های تجدیدپذیر از لحاظ اقتصادی مناسب­ترین است، تاکنون بررسی نشده است. بر اساس نتایج حاصل گزینه برتر به لحاظ صرفه اقتصادی در اقلیم­های سرد، گرم و خشک و گرم و مرطوب بهره­مندی از سلول خورشیدی و در اقلیم معتدل و مرطوب سیستم­های مبتنی بر زیست توده می­باشد.

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