This paper aims to compare concepts of energy theology in Islam with Thermodynamic theory, especially concerning water immortality. The research question discussed in this paper is whether the views of Islamic theology, represented by the Mu'tazilite and Asharite schools regarding natural substances have a correlation with energy theology among ecologists, especially with the laws of Thermodynamics? The results of the study found that the Mu'tazilite theological school saw that water energy has

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... an eternal character, so it would not run out if people exploit it. This view is in line with the law of Thermodynamics I, which confirms that energy has the character of immortality. Meanwhile, Asharite states that natural substances do not have a character of eternality, including water energy. The theological views of Asharite are in line with the law of Thermodynamics II, which states that energy experiences a shrinkage. The analysis of this different stances on energy theology can be used as a concept for environmental exploitation or preservation. According to the Mu'tazilite view, the exploitation of the environment can be carried out indefinitely, because the substance of nature has no limit (eternal). Meanwhile, based on Asharite view, the exploitation of nature must must be limited, because natural substances have limited time and volume, which need to be preserved. Keyword: Thermodynamic, Mu'tazilite, Asharite ABSTRAK: Artikel ini membahas tentang perbandingan konsep teologi energi dalam Islam dengan teori termodinamika, terutama menyangkut tentang keabadian air. Pertanyaan riset yang dibahas dalam artikel ini adalah apakah pandangan teologi Islam, yang diwakili oleh aliran Mu'tazilah dan Al-As'ariyah perihal substansi alam memiliki korelasi dengan teologi energi di kalangan para ekolog, terutama dengan hukum Termodinamika? Hasil pembacaan penulis ditemukan bahwa aliran kalam Mu'tazilah memandang bahwa energi air memiliki karakter kekal,