Organizational Carbon Footprint: A Case Study of the University of Phayao

Watcharit  Suchattrakun; Sukhuma  Chitapornpan; Nathiya  Kreetachat; Surat  Sedpho; Wanawan Pragot

Authors

Watcharit Suchattrakun School of Energy and Environment, University of Phayao, Phayao, 56000 Thailand
Sukhuma Chitapornpan School of Energy and Environment, University of Phayao, Phayao, 56000 Thailand
Nathiya Kreetachat School of Energy and Environment, University of Phayao, Phayao, 56000 Thailand
Surat Sedpho School of Energy and Environment, University of Phayao, Phayao, 56000 Thailand
Wanawan Pragot School of Energy and Environment, University of Phayao, Phayao, 56000 Thailand

Keywords:

Carbon footprint, GHG protocol, Greenhouse gases, University

Abstract

This study evaluates the organizational contribution of a university to global warming by conducting a comprehensive CO2 inventory in accordance with the Greenhouse Gas (GHG) Protocol. Organizational and operational boundaries were established under three emission scopes, and the university’s carbon footprint was quantified using emission factors derived from Thailand’s national databases and the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Emissions for each scope were calculated in metric tons of CO2 equivalent per year (tCO2eq/year). Data were sourced from financial records, usage logs, and estimates for specific
emission sources. The findings indicate that total GHG emissions increased from 9,897 tCO2eq in 2021 to 10,944.55 tCO2eq in 2022, with per capita emissions rising from 0.46 to 0.49 tCO2eq/person. Electricity consumption (Scope 2) was the primary contributor, accounting for 61.84% and 56% of total emissions in 2021 and 2022, respectively. The study also highlights the impact of the COVID-19 pandemic on emission patterns, particularly in transportation and on-campus activities. Despite higher overall electricity consumption in 2022 compared to 2021, electricity-related emissions remained relatively stable due to the installation of a solar cell system, which mitigated the increase. While the university has implemented various emission reduction initiatives, ongoing carbon footprint assessments are essential for monitoring operational impacts and identifying further strategies to reduce emissions.

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