Assessment of Green Building Performance Using BGH and Greenship: A Case Study of the Gelora Inovasi Kreativitas (GIK), Gadjah Mada University

Bayu Purnomo

Abstract

Urban population growth is increasing global energy consumption and carbon emissions, with the building sector contributing more than 30% of greenhouse gas emissions and raw material use. In Indonesia, buildings consume 50% of the nation's energy and more than 70% of electricity. To reduce the environmental impact of the construction sector, the green building concept is implemented as an effort to create sustainable and energy-efficient buildings. This study compares two assessment systems, BGH (Bangunan Gedung Hijau, Green Guilding) and Greenship, through a case study at the Creative Innovation Center (Gelora Inovasi Kreativitas, GIK) of Gadjah Mada University. Evaluation based on actual point achievement shows a score of 114.01 out of 165 points (69.1%) according to BGH, with the Silver category, which when converted to the Greenship system is equivalent to 69 points and the Gold level. This finding indicates a difference in assessment approaches between the percentage-based BGH with loose intervals and the more stringent and specific Greenship. The analysis results show the implementation of green building principles in GIK, especially in quality management, energy conservation, thermal comfort, and environmentally friendly behavior. However, aspects of construction waste management and environmentally friendly supply chains require improvement to support Greenship certification to the Gold or Platinum level. This research is expected to be a strategic reference in encouraging the development of green buildings in higher education institutions in Indonesia.