O Zebua, H Gusmedi, Z Huda, M Komarudin, Irhamsah

Penentuan Kapasitas dan Kelayakan Ekonomis PLTS Atap di UPTD Puskesmas Rasuan Kabupaten Ogan Komering Ulu Provinsi Sumatera Selatan

Introduction

Penentuan kapasitas dan kelayakan ekonomis plts atap di uptd puskesmas rasuan kabupaten ogan komering ulu provinsi sumatera selatan . Tentukan kapasitas dan kelayakan ekonomis PLTS Atap di Puskesmas Rasuan, OKU, Sumsel. Studi ini menganalisis investasi panel surya 350Wp dan 440Wp, serta dampak penjualan energi ke grid.

Abstract

Pembangkit listrik tenaga surya (PLTS) Atap yang terhubung ke jaringan layanan listrik umum (on-grid) semakin diminati sebagai sumber energi listrik alternatif bagi perumahan atau gedung. Namun kelayakan ekonomis dari investasi pemasangan PLTS Atap harus dipertimbangkan sebelum membangunnya. Makalah ini bertujuan untuk menentukan kapasitas suatu PLTS Atap yang layak secara ekonomis untuk memenuhi kebutuhan listrik suatu gedung dan perumahan. Studi kasus yang dipilih adalah gedung UPTD (Unit Pelayanan Teknis Daerah) Puskesmas Rasuan di Kabupaten Ogan Komering Ulu Provinsi Sumatera Selatan. Profil beban listrik dari puskesmas selama sebulan diukur dan digunakan sebagai data beban listrik setiap bulan. Dua desain PLTS Atap masing-masing dibuat dengan menggunakan panel surya dengan kapasitas 350Wp dan 440Wp. Indikator kelayakan ekonomis setiap desain PLTS dihitung baik dengan mempertimbangkan tanpa penjualan energi listrik maupun penjualan energi listrik ke grid. Hasil penelitian menunjukkan bahwa investasi semua desain PLTS Atap yang dibuat tidak layak secara ekonomis bila energi listrik berlebih dari PLTS Atap tidak dijual ke grid. Sebaliknya, investasi semua desain PLTS Atap layak secara ekonomis bila energi listrik dapat dijual ke grid. Desain PLTS Atap yang menggunakan panel surya 440Wp dengan kapasitas total 2,732 kW mempunyai nilai indikator kelayakan ekonomis yang paling baik.

Review

This paper addresses a highly relevant and timely topic: the economic feasibility of grid-connected rooftop solar photovoltaic (PLTS Atap) systems, particularly in the context of public buildings in Indonesia. Focusing on the UPTD Puskesmas Rasuan in Ogan Komering Ulu, South Sumatra, the authors aim to determine an economically viable PLTS Atap capacity to meet building electricity needs. The study's core finding, that economic feasibility is critically dependent on the ability to sell surplus electricity back to the grid, provides crucial insights for both potential investors and policymakers in the region. The methodology employed is sound, utilizing real-world monthly load profile data from the puskesmas, which is then extrapolated. Two distinct PLTS Atap designs, based on 350Wp and 440Wp solar panels, are thoroughly evaluated. A key strength lies in the comparative analysis of economic indicators under two scenarios: with and without the option for selling excess electricity to the grid. This clear distinction robustly demonstrates how current regulatory frameworks (or lack thereof) can significantly impact investment viability. The identification of the 440Wp panel design with a total capacity of 2.732 kW as the most economically favorable option offers concrete guidance for implementation. While the study provides valuable insights, a potential area for enhancement could be the utilization of a more extensive load profile dataset, perhaps encompassing a full year to account for seasonal variations in electricity consumption and solar irradiance. Further detail on the specific economic indicators used (e.g., Net Present Value, Internal Rate of Return, Payback Period) and their calculation methodologies would also strengthen the paper. Nevertheless, the research significantly contributes to the understanding of renewable energy investment in public health facilities within developing regions, highlighting the urgent need for supportive policies, particularly concerning grid export mechanisms, to accelerate the adoption of solar energy.

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