Improving the efficiency of educational buildings is essential to meeting campus sustainability targets. This study evaluates the green-building performance of Block A, Faculty of Mathematics and Natural Sciences, Syiah Kuala University, by integrating Greenship Existing Building (EB) v1.1 and EDGE v3.0 to assess energy, water, and material efficiency in a humid-tropical academic facility. A mixed-methods approach combined field observations, interviews, and technical/operational document review. Greenship scoring reached 71 of 117 points: Appropriate Site Development 12/16, Energy Efficiency and Conservation 28/36 (including 8 bonus points), Water Conservation 11/20 (including 1 bonus point), Material Resources and Cycle 7/12, Indoor Health and Comfort 8/20, and Building Environmental Management 5/13. Performance is generally good, but indoor comfort and environmental management require improvement. EDGE confirms the result, indicating savings of 31.75% in energy, 21.48% in water, and 24.10% in materials, all above the 20% threshold. Simulation of upgrades recommends a simple rainwater-harvesting system, installation of water sub-meters, reactivation of solar panels, and energy-focused operation and maintenance policies supported by integrated IoT monitoring. Overall, the combined Greenship–EDGE framework effectively pinpoints enhancement opportunities and offers a replicable model for green-campus development in Indonesia.
Alfajri et al. (Fri,) studied this question.