M. Mohammadi, R. Ghasempour, F. Razi Astaraei, E. Ahmadi, A. Aligholian, A. Toopshekan, “Optimal planning of renewable energy resource for a residential house considering conomic and reliability criteria”, International Journal of Electrical Power & Energy Systems, vol. 96, ,pp.261-273, 2018.
In this paper, an optimal planning approach is proposed based on 100% renewable energy system (RES) for a residential house. In respect to renewable resources potential in the site location and electrical demand, the best combination of resources is chosen based on minimum energy supply cost and maximum reliability. Furthermore, different scenarios are suggested by considering different levels of capacity shortage (CSH) and unmet electricity load (UEL) percentage. As a case study, the real electricity consumption data for a single family household is considered in Hesarak, Tehran, Iran. The final optimal solution for this 100 % RES with the objective function of cost minimization and reliability constraint include 4 kW PV, 2 kW wind turbine, 4 kW converter and 6 battery strings. This scenario with CSH of 1.1 % and UEL of 0.9 % has the net present cost of 20,527 $ that while having low cost, the reliability of this system is also good compared to other scenarios.
Keywords
Techno-economic analysis, System reliability, Hybrid renewable energy system, Optimal planning, Reserve system, HOMER.
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Paper Content
In this paper, an optimal planning approach is proposed based on 100% RES for a residential house by HOMER software. The best combination of resources is chosen with respect to RER potential in the study area and electrical load demand. The home is off-grid and RER should provide all of the power demand. The results for different modes of operating reserve and unmet electric load are discussed and various suggestions are classified based on cost and reliability requirements. Eventually, the optimum combination of an HRES is suggested based on the minimum net present cost of the system. But unlike previous studies, the effect of relevant reserve systems has been intended in this process and the optimum values for the capacity shortage and unmet load has been determined. As a case study, a real electricity consumption data for a single family household has been considered in Hesarak, Tehran, Iran..