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INVESTMENT FEASIBILITY COMPARATIVE ANALYSIS OF GREEN BUILDING AND CONVENTIONAL IN DKI JAKARTA Ramadian, Yasmin; Fuk Jin, Oei
Jurnal Infrastruktur Vol 10 No 1 (2024): Jurnal Infrastruktur
Publisher : Jurnal Infrastruktur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/infrastruktur.v10i1.6099

Abstract

Sustainable buildings generally demonstrate a friendly environment, save energy and reduce operational costs, thus opening up significant investment opportunities in green buildings of the office property type. It is a shame that currently there are still very few office building developers who apply the green building concept, meanwhile the green building concept provides 31% greater profits than conventional buildings. This study aims to analyze the financial feasibility of four office buildings which are divided into two categories, namely category one (building 1 and Building 3) with a grade A building type and category two (building 2 and building 4) with a grade B building type. Building 1 and building 2 has received green building certification issued by GBCI. Building 2 and building 4 are buildings with a conventional concept. Calculation analysis is carried out using the Net Present Value (NPV), Internal Rate of Return (IRR) and Payback Period (PP) methods. Based on the results of the analysis, from the two categories of building types, the results showed that the NPV of each building was said to be financially feasible with an NPV ratio of 294% (category 1) and 162% (category 2). The IRR obtained exceeds the MARR value, with a comparison of 54% (category 1) and 21% (category 2). The payback period is less than the project investment period, namely 20 years, with a difference of 5 years (category 1) and 3 years (category 2). The office buildings with the highest and best NPV are Building 1 and Building 3 (category 1), so that even though the construction costs and green building design planning costs incurred are higher, in the research object of each building there are quite significant differences in NPV and IRR and It is hoped that all new construction and renovation work carried out by developers can apply the green building concept.
PERBANDINGAN KELAYAKAN FINANSIAL GEDUNG GREEN BUILDING DAN NON- GREEN BUILDING MENGGUNAKAN METODE MONTE CARLO Ramadian, Yasmin; Oei, Fuk Jin
JMTS: Jurnal Mitra Teknik Sipil Volume 7, Nomor 3, Agustus 2024
Publisher : Prodi Sarjana Teknik Sipil, FT, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jmts.v7i3.28079

Abstract

Since 2011, Indonesia has been committed to reducing greenhouse gas emissions, one of which is by implementing green buildings in office buildings. The aim of implementing green building is to manage and preserve the environment around the building, reduce building operational costs, ensure the continuity of use of the building, and prevent excessive replacement of building equipment. This study aims to analyze the financial feasibility of four office buildings using the Monte Carlo simulation method which is divided into two categories, namely category 1 (gedung  1 and gedung 3) with grade A building type and category 2 (gedung 2 and gedung 4) with building type grade B. Gedung 1 and gedung 2 have received green building certification issued by GBCI. Gedung 3 and gedung 4 are buildings with a conventional concept. Calculation analysis was carried out using the Monte Carlo method by comparing the Net Preset Value (NPV) and Internal Rate of Return (IRR). Based on the results of comparative analysis carried out on four research objects, the risks used are occupancy rates, rental income and inflation. So it is concluded that the NPV of each building is said to be financially feasible with NPV > 0, a comparison of NPV of 290.37% (category 1) and 164.42% (category 2). The IRR obtained exceeded the MARR value, with a comparison of 53.53% (category 1) and 20.87% (category 2). So the results of the Monte Carlo analysis of office buildings with the highest and best NPV are Building 1 and Building 3 (category 1). Abstrak Sejak tahun 2011 Indonesia telah berkomitmen untuk menurunkan emisi gas rumah kaca salah satunya dengan menerapkan green building pada gedung perkantoran. Tujuan dalam penerapan green building adalah untuk mengelola dan menjaga kelestarian lingkungan disekitar bangunan, mengurangi biaya operasional bangunan, menjamin kelangsungan penggunaan bangunan, serta mencegah penggantian terlalu berlebihan pada peralatan bangunan. Studi ini bertujuan untuk menganalisa kelayakan finansial pada empat gedung perkantoran dengan metode simulasi Monte Carlo yang dibagi menjadi dua kategori, yaitu kategori satu (gedung 1 dan gedung 3) dengan tipe bangunan grade A dan kategori dua (gedung 2 dan gedung 4) dengan tipe bangunan grade B. Gedung 1 dan gedung 2 telah mendapatkan sertifikasi green building yang dikeluarkan oleh GBCI.  Gedung 3 dan gedung 4 merupakan gedung dengan konsep konvensional. Analisa perhitungan dilakukan dengan menggunakan metode Monte Carlo dengan membandingkan Net Present Value (NPV) dan Internal Rate of Return (IRR). Berdasarkan hasil analisis perbandingan yang telah dilakukan pada empat objek penelitian dengan risiko yang digunakan adalah tingkat occupancy, pendapatan sewa, dan inflasi. Maka disimpulkan bahwa NPV masing-masing gedung dikatakan layak secara finansial dengan NPV > 0, perbandingan NPV sebesar 290,37% (kategori 1) dan 164,42 % (kategori 2). IRR yang didapatkan melebihi dari nilai MARR, dengan perbandingan sebesar 53,53% (kategori 1) dan 20,87% (kategori 2). Sehingga hasil analisis Monte Carlo pada gedung perkantoran dengan NPV tertinggi dan terbaik adalah gedung 1 dan Gedung 3 (kategori 1).