The University of Peradeniya has been officially recognized as Sri Lanka's leading sustainable higher education institution in the 2026 UI GreenMetric World University Rankings, following comprehensive assessments of campus infrastructure, renewable energy, and ecological stewardship.

Situated along the Mahaweli River in Kandy's lower mountain basin, the university secured top national marks across criteria measuring green spaces, campus biodiversity preservation, and intelligent water conservation. Over the past year, the university's environmental engineering teams integrated rooftop solar microgrids across academic faculties, expanded botanical carbon-sink zones, and implemented closed-loop wastewater treatment facilities. Institutional administrators highlighted that the milestone underscores Peradeniya's dual commitment to high-impact scientific research and climate-resilient campus infrastructure in the central highlands.