Planning and Analysis of Green Building Concept Implementation for a Hospital Building in Koto Tangah District, Padang City
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Abstract
The increasing number of healthcare facilities in Indonesia has resulted in higher energy and water consumption, while hospitals are required to operate continuously for 24 hours. According to Statistics Indonesia (Badan Pusat Statistik), the country has 2,636 general hospitals and 519 specialized hospitals, contributing to greater resource consumption and non medical waste generation. Therefore, implementing green building and green hospital concepts has become a strategic necessity for sustainable healthcare development. This study employed a descriptive quantitative approach using a case study of the proposed Restu Ibu Koto Tangah Hospital in Padang City, with a total building area of 4,000 m². The analysis evaluated energy consumption, electricity generation from a 150 kWp photovoltaic solar power system, clean water demand, rainwater harvesting potential based on actual rainfall data, and carbon emission reduction. The results indicate that the proposed design could reduce grid electricity consumption by 43.9%, harvest approximately 3,870 m³ of rainwater annually, and reduce carbon emissions by approximately 523 tons of CO₂ per year. The study recommends optimizing passive design, integrating rainwater harvesting with the clean water supply system, and pursuing Greenship certification to support compliance with the Indonesian Hospital Accreditation Standards (STARKES).
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