Meeting of Energy Demand for Irrigation of Off-Grid Agricultural Land by Solar-Wind Energy System with Battery Storage

Öz

In this study, techno-economic and environmental feasibility analyzes of meeting the electrical energy required for irrigation need of agricultural land of 10,000 m2, which is considered to be independent of the grid, in the rural area of Polatlı district of Ankara, with a solar-wind hybrid renewable energy system, were carried out using HOMER-Pro software. The electrical load required for irrigation was determined as 64 kWh/day. In addition, it is assumed that the electrical load of a house with an electrical load of 11.25 kWh/day close to the agricultural land will be met by the hybrid energy system to be installed. As a result of the examinations, it has been determined that the use of the hybrid energy system with solar-wind power to be created with a solar panel of 22.1 kW, a maximum power point tracking (MPPT) of 8 kW, a wind turbine of 10 kW, 138 pieces of 1 kW lead-acid batteries and a converter of 13.3 kW exhibited the most appropriate results. In this case, 41.8 % of the electrical energy to be obtained will be met from solar energy and 58.2% from wind energy, and electrical energy of 55,765 kWh will be produced annually. It has been determined that the initial investment cost of the system to be established is 405,536 ₺, the net current cost is 882,950 ₺, the cost of the electricity produced is 1.53 ₺/kW, and the investment will pay off in 9 years. In addition, it has been found that the amount of CO2 to be released into the atmosphere will be 17,358 kg/year if the required electrical energy is met from the grid.

Anahtar Kelimeler

• Hybrid energy systems
• Solar energy
• Wind energy
• Energy storage
• Feasibility analysis

Şebekeden Bağımsız Tarım Arazisinin Sulama Enerjisi İhtiyacının Batarya Depolamalı Güneş – Rüzgar Enerji Sistemi ile Karşılanması

Öz

Bu çalışmada, Ankara’nın Polatlı ilçesinin kırsal kesiminde şebekeden bağımsız olduğu kabul edilen 10,000 m2’lik bir tarım arazisinin sulama ihtiyacı için gerekli olan elektrik enerjinin güneş-rüzgar hibrit yenilenebilir enerji sistemi ile karşılanmasının tekno-ekonomik ve çevresel fizibilite analizleri HOMER-Pro yazılımı kullanılarak yapılmıştır. Sulama için gerekli olan elektrik yükü 64 kWh/gün olarak tespit edilmiştir. Ayrıca tarım arazisinin yanında elektrik yükü 11,25 kWh/gün olan bir evin de elektrik yükünün kurulacak olan hibrit enerji sistemi ile karşılanacağı varsayılmıştır. Yapılan incelemeler sonucunda, 22,1 kW’lık güneş paneli, 8 kW’lık MPPT (Maksimum güç noktası takip), 10 kW’lık rüzgar türbini, 138 adet 1kW’lık kurşun-asit batarya ve 13,3 kW’lık konvertör ile oluşturulacak güneş-rüzgar hibrit enerji sisteminin kullanımının en uygun sonuçlar sergilediği belirlenmiştir. Bu durumda, elde edilecek elektrik enerjisinin %41,8’i güneş enerjisinden, %58,2’i ise rüzgar enerjisinden karşılanacak ve yılda 55.765 kWh elektrik enerjisi üretilecektir. Kurulacak sistemin ilk yatırım maliyetinin 405.536 ₺, net şimdiki maliyetinin 882.950 ₺, üretilen elektriğin maliyetinin 1,53 ₺/kW ve yatırımın 9 yılda amorti edeceği tespit edilmiştir. Ayrıca gerekli olan elektrik enerjisinin şebekeden karşılanması durumunda ise atmosfere salınacak CO2 miktarının 17.358 kg/yıl olacağı tespit edilmiştir.

Anahtar Kelimeler

• Hibrit enerji sistemleri
• Güneş enerjisi
• Rüzgar enerjisi
• Enerji Depolama
• Fizibilite analizi

Kaynakça

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