Analisis life cycle cost pada green building dengan peringkat platinum di Indonesia (studi kasus : Alamanda Tower)
K ategori biaya yang terdapat pada Alamanda Tower terdiri dari Intial Cost (Biaya Awal), Energy Cost (Biaya Energi), Operationnal and Maintenance Cost (Biaya Operasional dan Pemeliharaan) dan Replacement Cost (Biaya Penggantian). Dengan menggunakan Present Worth Method pada tingkat suku bunga (i) = 6 %dan periode analisis (n) = 17 tahun maka diperoleh total biaya hidup (Life Cycle Cost) dari Alamanda Tower adalah sebesar Rp1.554.041.286.554 dengan rincian sebagai berikut. Intial Cost (Biaya Awal) sebesar Rp 1.099.994.310.984, Energy Cost (Biaya Energi) sebesar Rp 71.440.767.030, Operational and Maintenance Cost (Biaya Operasional dan Pemeliharaan) sebesar Rp 376.852.680.000 dan Replacement Cost (Biaya Penggantian) sebesar 5.753.528.540. - Dalam analisis sensitivitas yang dilakukan pada besar Life Cycle Cost - Pada LCC Modelling, dapat dilihat bahwa persentase tiap kategori biaya terhadap biaya total jika tanpa memperhitungkan nilai sisa, yaitu Intial Cost (Biaya Awal) sebesar 70,783%, Energy Cost (Biaya Energi) sebesar 4,597%, Operational and Maintenance Cost (Biaya Operasional dan Pemeliharaan) sebesar 24,250% dan Replacement Cost (Biaya Penggantian) sebesar 0,370% sedangkan jika memperhitungkan Nilai Sisa atau Residual Cost sebesar Rp 282.281.574.483 maka Intial Cost (Biaya Awal) sebesar 59,902%, Energy Cost (Biaya Energi) sebesar 3,890%, Operationnal and Maintenance Cost (Biaya Operasional dan Pemeliharaan) sebesar 20,522% dan Replacement Cost (Biaya Penggantian) sebesar 0,313%. Selain itu, dari LCC Modelling juga dapat diketahui dengan atau tanpa memperhitungkan nilai sisa, persentase terbesar dari Life Cycle Cost pada Alamanda Tower adalah Initial Cost.
T he cost categories contained in Alamanda Tower consist of Intial Cost, Energy Cost, Operation and Maintenance Cost and Replacement Cost. By using the Present Worth Method at the interest rate (i) = 6% and the analysis period (n) = 17 years, the total cost of life (Life Cycle Cost) from Alamanda Tower is Rp1,554,041,286,554 with the following details. The Intial Cost is IDR 1,099,994,310,984, Energy Cost is IDR 71,440,767,030, Operational and Maintenance Cost is IDR 376,852,680,000 and Replacement Cost is 5,753 .528,540. - In the sensitivity analysis carried out on the large Life Cycle Cost - In LCC Modeling, it can be seen that the percentage of each cost category for total costs without taking into account the residual value, namely Intial Cost is 70.783%, Energy Cost is equal to 4,597%, Operational and Maintenance Costs amounting to 24,250% and Replacement Cost (Replacement Costs) of 0,370% while if taking into account the Residual Cost of Rp. 282,281,574,483, the Intial Cost is 59.902%, Energy Cost is 3.890%, Operationnal and Maintenance Cost is 20.522% and Replacement Cost is 0.313%. In addition, from LCC Modeling it can also be known with or without calculating the residual value, the largest percentage of the Life Cycle Cost on Alamanda Tower is Initial Cost.