This study aimed to develop a simplified estimation model for determining the optimal rooftop PV system for gable roofs that can evaluate life cycle economic and environmental assessment, by considering the type of installation to be used for such rooftop PV system. The military facilities located in three regions (i.e., Gimpo (northern part), Deajeon (middle part), and Pohang (southern part)) in South Korea were selected for the case studies. The results of this study are as follows. First, in terms of NPV25 (net present value in 25 years), for the roofs with a lower orientation, ToI-2opt. was selected as the optimal rooftop PV system, and for the roofs with a higher orientation, ToI-2ext. or ToI-3opt. was selected as the optimal rooftop PV system. Second, in terms of SIR25 (savings-to-investment ratio in 25 years), for the roofs with a lower orientation, ToI-1ext. was selected as the optimal rooftop PV system, and for the roofs with a higher orientation, ToI-3opt. was selected as the optimal rooftop PV system. The simplified estimation model may be useful for decision makers, including experts and non-experts (i.e., architects, owners, construction managers, etc.), or policymakers in determining the optimal rooftop PV system for a gable roof.
|Number of pages||12|
|Journal||Energy and Buildings|
|Publication status||Published - 2017 Sept 15|
Bibliographical notePublisher Copyright:
© 2017 Elsevier B.V.
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Building and Construction
- Mechanical Engineering
- Electrical and Electronic Engineering