Technical Design and Sustainability Analysis of Rooftop On-Grid Photovoltaic System for Communal Religious Buildings

Rasional Sitepu ¹, Catherine Tjondro Kusumo ², Andrew Joewono ³, Yuliati ⁴, Julius Mulyono ⁵, Lanny Agustine ⁶

^1,3 Professional Engineer Study Program, Widya Mandala Catholic University Surabaya, Surabaya, Indonesia.
^2,4,6 Electrical Engineering Study Program, Widya Mandala Catholic University Surabaya, Surabaya, Indonesia.
⁵ Industrial Engineering Study Program, Widya Mandala Catholic University Surabaya, Surabaya, Indonesia

Abstract

The global transition toward sustainable energy sources serves as a pivotal metric for climate change mitigation and the advancement of public health. This study evaluates the technical architecture and performance efficiency of a 162-kWp rooftop on-grid Photovoltaic (PV) system situated at the Paroki Salib Suci Tropodo Church in Sidoarjo, Indonesia. Utilizing a quantitative framework integrated with HelioScope simulation software, the research optimizes a 1,000 m² rooftop expanse characterized by a regional solar irradiance of 4.8 kWh/m²/day. Empirical simulations project an annual energy yield of 221,360 kWh with a performance ratio of 78%. This implementation is estimated to sequester approximately 155 tons of CO2 per annum, illustrating the transformative potential of religious community centers in fostering urban sustainability and reducing fossil-fuel dependency.

Keywords: Technology; Sustainability; Rooftop PV; On-Grid System; Carbon reduction; Environmental health

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