EVERGREEN

Joint Journal of Novel Carbon Resource Sciences and Green Asia Strategy

ISSN:2189-0420 (Print until Mar 2020)
ISSN:2432-5953 (Online)

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Benchmarking Energy Use Intensity of 33 Office Buildings in Indonesia

Enny Rosmawar Purba1,*, Yusuf Ahda1, Wiwie Chaeruni1, Sarwo Turinno1, Zulramadhanie1, Tata Sutardi1, Yusuf Margowadi1, Devi Laksmi Zafilus2, Hadi Surachman1, Titik Nurmawati1
1Energy Conversion and Conservation Research Center, Badan Riset dan Inovasi Nasional Republik Indonesia, Indonesia
2Directorate General of Renewable Energy and Energy Conservation, Ministry of Energy and Mineral Resources, Indonesia
*Author to whom correspondence should be addressed:
E-mail: enny.rosmawar.purba@brin.go.id (ERP)
Evergreen, Vol. 12, Iss. 04, pp. 2000–2012, 2025
DOI: 10.5109/7402632
Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International
Received: May 26, 2025 | Revised: July 17, 2025 | Accepted: December 17, 2025 | Published: December 2025
Abstract
The building sector, which is responsible for 40% of global energy usage and 36% of total greenhouse gas emissions, must contribute to net zero emissions by implementing energy-saving techniques and renewable energy sources, thereby reducing climate change. This study identifies buildings in Java and Sumatra, with focus on capital cities, as part of the Green Building Roadmap, aiming to conserve energy and water and reduce CO2 emissions. The application of statistical analysis methodologies revealed that the mean Energy Use Intensity (EUI) was determined to be 160 kWh/m²/year. In this context, effective benchmarks that were set below 115 kWh/m²/year were indicative of high performance, while benchmarks that exceeded 190 kWh/m²/year were suggestive of significant inefficiency. The main energy users in office buildings were HVAC systems (64.7%), office equipment (15%), lighting systems (8.8%), lifts and escalators (7.0%), and other electrical equipment (about 4.5%). Implementing zero-energy buildings in Indonesia is attractive due to the low average EUI and the potential of photovoltaic energy in tropical countries. The research aims to provide practical reference data for evaluating building energy performance and potentially reducing greenhouse gas emissions.
Keywords
Building Energy Benchmarking; Energy Use Intensity; Greenhouse gas; Indonesia; Office Building
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