Sustainable Energy
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Sustainable Energy. 2014, 2(1), 5-11
DOI: 10.12691/rse-2-1-2
Open AccessArticle

Simulation of a ZEB Electrical Balance with aHybrid Small Wind/PV

Mohammad Sameti1, Alibakhsh Kasaeian1, and Fatemeh Razi Astaraie1

1Department of Renewable Energies, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran

Pub. Date: January 01, 2014

Cite this paper:
Mohammad Sameti, Alibakhsh Kasaeian and Fatemeh Razi Astaraie. Simulation of a ZEB Electrical Balance with aHybrid Small Wind/PV. Sustainable Energy. 2014; 2(1):5-11. doi: 10.12691/rse-2-1-2


Electricity production from modern renewable technologies (wind energy, solar energy, water power in small scale, and geothermal energy) is growing rapidly worldwide. In addition to the large-scale power generation, applications in the residential sector is also of interest which are classified into stand-alone systems (without connecting to the grid) and grid-connected systems. Zero energy building (ZEB) is a concept based on minimized energy demand and maximized harvest of local renewable energy resources. In this paper, the electrical energy consumption of a typical residential building is modeled. In addition to the electrical grid, the house is connected to a hybrid wind turbine and photovoltaic array together with a battery storage system. The cost of electricity purchased from the electrical grid was optimized to its minimum level. The results showed that, considering a load profile with 21.675 kWh of daily consumption, a 3 kW PV array with a 2 kW wind turbine and a 5 kWh battery could save 96% of the monthly electricity bill; from 2’377 to 66’960dollars. Excluding battery storage, this saving was reduced to 74%.

Zero Energy Building (ZEB) energy storage Energy Cost Optimization

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