Increasing Value of Façade at Green Hotel Building Based on Value Engineering

Of a total of 180 countries in the world, Indonesia is ranked 116^th in the EPI ranking. This paper describes the innovative design of a high-rise hotel building that carries a green building concept. which utilizes the outer wall area of the hotel building as an object in this study.

The main design of this project is the creation of an innovative high-rise hotel building with attention to architectural, structural, and lighting system aspects as well as energy efficiency from direct sunlight, which will be processed into a source of electrical energy.

Application of analysis through value engineering case studies and application of green building methods, with qualitative methods. This paper focuses on factors related to energy sources and environmental sustainability and calculates life cycle costs concerning case study designs. The goal is to reduce the use of electrical energy sources from PLN which have an impact on nature preservation, by carrying out the concept of environmentally friendly buildings, by utilizing the facade wall area with the application of Photovoltaic.

The results obtained a percentage of ≤ 6.21%, with the use of Photovoltaic material as much as 100%.

The facades (east and west) generate ± 1,050 KVA of electricity from the Solar Power Plant and reduce the use of electricity from PLN by 991 KVA, out of a total of 2,041 KVA. It can be concluded that the decrease obtained is 47.32%.