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Optimal Design of a Residential Photovoltaic Renewable System in South Korea

1
Department of Financial Mathematics, Gachon University, Seongnam 13120, Korea
2
Department of Energy IT, Gachon University, Seongnam 13120, Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(6), 1138; https://doi.org/10.3390/app9061138
Received: 4 February 2019 / Revised: 9 March 2019 / Accepted: 14 March 2019 / Published: 18 March 2019
(This article belongs to the Special Issue State-of-the-Art Renewable Energy in Korea)
An optimal design model for residential photovoltaic (PV) systems in South Korea was proposed. In the optimization formulation, the objective function is composed of three costs, including the monthly electricity bill, the PV system construction cost (including the government’s subsidy), and the PV system maintenance cost. Here, because the monthly electricity bill is not differentiable (it is a stepped piecewise linear function), it cannot be solved by using traditional gradient-based approaches. For details considering the residential electric consumption in a typical Korean household, consumption was broken down into four types (year-round electric appliances, seasonal electric appliances, lighting appliances, and stand-by power). For details considering the degree of PV generation, a monthly generation dataset with different PV tilt angles was analyzed. The optimal design model was able to obtain a global design solution (PV tilt angle and PV size) without being trapped in local optima. We hope that this kind of practical approach will be more frequently applied to real-world designs in residential PV systems in South Korea and other countries. View Full-Text
Keywords: optimal design; photovoltaic system; renewables; residential building; South Korea optimal design; photovoltaic system; renewables; residential building; South Korea
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MDPI and ACS Style

Shin, H.; Geem, Z.W. Optimal Design of a Residential Photovoltaic Renewable System in South Korea. Appl. Sci. 2019, 9, 1138. https://doi.org/10.3390/app9061138

AMA Style

Shin H, Geem ZW. Optimal Design of a Residential Photovoltaic Renewable System in South Korea. Applied Sciences. 2019; 9(6):1138. https://doi.org/10.3390/app9061138

Chicago/Turabian Style

Shin, Hyunkyung, and Zong W. Geem 2019. "Optimal Design of a Residential Photovoltaic Renewable System in South Korea" Applied Sciences 9, no. 6: 1138. https://doi.org/10.3390/app9061138

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