Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mendapatkan alternatif lokasi pembangunan PLTP (Pembangkit Listrik Tenaga Panas Bumi) sebagai pendukung keputusan bagi pihak terkait menggunakan metode Additive Ratio Assessment (ARAS) dan untuk mengetahui tingkat korelasi antara metode ARAS dengan metode Simple Additive Weighting (SAW) dan Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) dalam penentuan lokasi pembangunan PLTP. Metode ARAS merupakan salah satu metode pengambilan keputusan multikriteria berdasarkan pada konsep perangkingan menggunakan utility degree yaitu dengan membandingkan nilai indeks keseluruhan setiap alternatif terhadap nilai indeks keseluruhan alternatif optimal. Hasil penelitian menunjukkan bahwa metode ARAS dapat digunakan dalam mencari alternatif lokasi pembangunan PLTP di Seulawah Agam Aceh Besar, Hal tersebut dapat dilihat dari korelasi menggunakan rank spearman, dimana nilai koefisien korelasi antara metode ARAS dan TOPSIS sebesar 0,864912 dan nilai koefisien korelasi antara metode ARAS dan SAW sebesar 0,922807. Dapat diartikan bahwa tingkat kekuatan korelasi antara metode ARAS dengan TOPSIS dan SAW sangat kuat. Kemudian angka koefisien korelasi juga bernilai positif, sehingga korelasi kedua metode tersebut bersifat searah. Nilai ρ hitung > ρ tabel (0,864912 & 0,922807 > 0,391), maka tolak H0 dan terima H1. Artinya terdapat korelasi atau hubungan antara hasil peringkat dari metode ARAS dengan hasil peringkat dari metode TOPSIS dan SAW. Berdasarkan hasil perankingan menggunakan metode ARAS, maka didapati rekomendasi tertinggi ialah alternatif A1 dengan nilai 0,714.

Kata kunci : Sistem Pendukung Keputusan, MCDM, ARAS, Panas Bumi, PLTP

This study aims to obtain alternative locations for the construction of PLTP (Geothermal Power Plants) as a decision support for related parties using the Additive Ratio Assessment (ARAS) method and to determine the level of correlation between the ARAS method and the Simple Additive Weighting (SAW) and Technique for Order methods. of Preference by Similarity to Ideal Solution (TOPSIS) in determining the location of PLTP construction. The ARAS method is a multi-criteria decision-making method based on the concept of ranking using a utility degree by comparing the overall index value of each alternative to the overall optimal alternative index value. The results showed that the ARAS method can be used in finding alternative locations for PLTP construction in Seulawah Agam Aceh Besar. This can be seen from the correlation using rank Spearman, where the correlation coefficient between the ARAS and TOPSIS methods is 0.864912 and the correlation coefficient value between the ARAS method and SAW of 0.922807. It can be interpreted that the level of correlation strength between the ARAS method with TOPSIS and SAW is very strong. Then the correlation coefficient number is also positive, so the correlation of the two methods is unidirectional. The calculated ρ value > ρ table (0.864912 & 0.922807 > 0.391), then reject H0 and accept H1. This means that there is a correlation or relationship between the ranking results from the ARAS method and the ranking results from the TOPSIS and SAW methods. Based on the results of ranking using the ARAS method, it was found that the highest recommendation was alternative A1 with a value of 0.714. Keywords : Decision Support System, MCDM, ARAS, Geothermal, PLTP