Abstract :

School buildings consume energy covering their energy demand. The most of them utilize fossil fuels and grid electricity while the use of renewable energies is rather limited. School buildings should eliminate their carbon emissions in order to achieve the global target for net-zero carbon emissions by 2050. The energy consumption and the carbon emissions in schools have been evaluated. School buildings in Greece consume less than 100 kWh/m² year. Solar thermal energy, solar photovoltaic energy and high efficiency heat pumps can cover all the energy demand in school buildings in Greece replacing the use of conventional energy sources. These energy technologies are reliable, mature and cost-effective. There are 7,756 primary and secondary school buildings in Greece consuming 1.67 TWh/year. The total cost of energy renovation eliminating their carbon emissions is estimated at 1,156,000 €/school or 8.96 billion € for the 7,756 schools in the country. For achieving the target of net-zero carbon emissions by 2050, 310 Greek schools should be energy refurbished every year eliminating their carbon footprint in the next 25 years. Taking into account the availability of benign energy sources and technologies the main barrier for eliminating the carbon emissions in school buildings in Greece by 2050 is the high investment cost. Our results could be useful for the development of the required policies for decarbonization in school buildings.

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Keywords :

carbon emissions, energy consumption, Greece, Schools, sustainable energies

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References :

1. Dias Pereira, L., Raimonto, D., Corgnati, S.P., Gameiro da Silva, M. Energy consumption in schools – a review paper. Renewable and Sustainable Energy Reviews, 40, 2014, pp. 911-922. DOI: 10.1016/j.rser.2014.08.010
2. Twewes, A., Maas, S., Scholzen, F., Waldmann, D., Zurbes, A. Field study on the energy consumption of school buildings in Luxemburg. Energy and Buildings, 68, 2014, pp. 460-470. http://dx.doi.org/10.1016/j.enbuild.2013.10.002
3. Chung, W., Yeung, I.M.H. A study of energy consumption of secondary school buildings in Hong Kong. Energy and Buildings, 226, 2020, 110388. http://dx.doi.org/10.1016/j.enbuild.2020.110388
4. Xing, J., Chen, J., Ling, J. Energy consumption of 270 schools in Tianjin, China. Frontiers in Energy, 9(2), 2015, pp. 217-230. https://doi.org/10.1007/s11708-015-0352-z
5. Kim, T., Kang, B., Kim, H., Park, C., Hong, W-H. The study on the energy consumption of middle school facilities in Daegu, Korea. Energy Procedia, 5, 2019, pp. 993-1000. https://doi.org/10.1016/j.egyr.2019.07.015
6. Iyer, Ρ. Carbon accounting at schools – An analysis of emissions in Montgomery county’s public schools. The National High School Journal of Science, Summer, 2023, pp. 1-12. Retrieved from: https://nhsjs.com/2023/carbon-accounting-in-schools-an-analysis-of-emissions-in-montgomery-county-public-schools/
7. Carbon emissions from schools: Where they arise and how to reduce them. (2008). Sustainable Development Commission, Reports and Papers. Retrieved from: https://www.sd-commission.org.uk/publications.php@id=765.html
8. Riyanti, A., Hadrah, H., Azwar, A.G.K. Investigation of carbon footprint from school activities: A case study in Jambi, Indonesia. AIP Conference Proceedings, 2677, 2023, 040011. https://doi.org/10.1063/5.0109326
9. Uludang, R.P., Taseli, B.K. Perspective chapter: Quantifying the carbon footprint of a high school – A three-part study, in the book: Global warming- A concerning component of climate change by Vinay Kumar (editor), 2023. DOI: 10.5772/intechopen.1001883
10. Odell, P., Rauland, V., Murcia, K. Schools: An Untapped Opportunity for a Carbon Neutral Future. Sustainability, 13, 2021, 46. https://dx.doi.org/10.3390/su13010 046
11. Rong, P., Kwan, M.-P., Qin, Y., Zheng, Z. A review of research on low-carbon school trips and their implications for human-environment relationship. Journal of Transport Technology, 99, 2022, 103306. DOI: 10.1016/j.jtrangeo.2022.103306
12. Pantelaki, E., Caspani, A.C., Maggi, E. Impact of home school commuting mode choice on carbon footprint and sustainable transport policy scenarios. Case Studies on Transport Policy, 15, 2014, 101110. https://doi.org/10.1016/j.cstp.2023.101110
13. Vourdoubas, J. Creation of zero CO₂ emission school buildings due to energy use in Crete, Greece. Open Journal of Energy Efficiency, 5, 2016, pp. 12-18. http://dx.doi.org/10.4236/ojee.2016.51002
14. Dascalaki, E.G., Sermpetzoglu, V.G. Energy performance and indoor environmental quality in Hellenic schools. Energy and Buildings, 43(2-3), 2011, pp. 718-727. https://doi.org/10.1016/j.enbuild.2010.11.017
15. Santamouris, M., Balaras, C.A., Dascalaki, E., Argiriou, A., Gaglia, A. Energy consumption and the potential for energy conservation in school buildings in Hellas. Energy, 19(6), 1994, pp. 653-660. https://doi.org/10.1016/0360-5442(94)90005-1
16. Kilpatrick, R.A.R., Banfill, P.F.G. Energy consumption in non-domestic buildings: a review of schools. in World renewable Energy Congress, 8-13 May 2011, Linkoping, Sweden. http://dx.doi.org/10.3384/ecp110571008
17. Wagner, O., Tholen, L., Nawothnig, L., Albert-Seifried, S. Making School-Based GHG-Emissions Tangible by Student-Led Carbon Footprint Assessment Program. Energies, 14, 2021, 8558. https://doi.org/10.3390/en14248558
18. Eurydice, Greece, Statistics on educational institutions, Organization and Governance, 2023, European Commission. https://eurydice.eacea.ec.europa.eu/national-education-systems/greece/statistics-educational-institutions
19. Dias-Pereira, L.D., Neto, l., Bernardo, H., de Silva, M.G. An integrated approach on energy consumption and indoor environmental quality performance in sic Portuguese secondary schools. Energy Research and Social Science, 32, 2017, pp. 23-43. https://doi.org/10.1016/j.erss.2017.02.004
20. Saleem, A.A., Abel-Rahman, A.K., Ali, H.H.H., Ookawara, S. An analysis of thermal comfort and energy consumption within public primary schools in Egypt. IAFOR, Journal of Sustainability, Energy and Environment, 3(1), 2016, pp. 51-64. https://doi.org/10.22492/ijsee.3.1.03
21. Attia,S., Shadmanfar, N., Ricci, F. Developing two benchmark models for nearly-zero energy schools. Applied Energy, 263, 2020, 114614. https://doi.org/10.1016/j.apenergy.2020.114614
22. Hakim, H., Archambault, R., Kibert, C.J., Fard, M.M., Fenner, A., Razkenari, M. From green to net-zero energy: a study of school buildings in Canada. Buildings, Cities and Performance, 2019, pp. 114-119. Retrieved from: https://prometheus.library.iit.edu/index.php/journal/article/view/90/74
23. Godoy-Shimizu, D., Hong, S. M., Korolija, I., Schwartz, Y., Mavrogianni, A., Mumovic, D. Pathways to improving the school stock of England towards net zero. Buildings and Cities, 3(1), 2022, pp. 939–963. DOI: https://doi.org/10.5334/bc.264

24. Hui, S.C.M. Zero energy and zero carbon buildings: myths and facts, In Proceedings of the International Conference on Intelligent Systems, Structures and Facilities (ISSF2010): Intelligent Infrastructure and Buildings, 12 January 2010, Kowloon Shangri-la Hotel, Hong Kong, China, pp. 15-25. Retrieved from: https://www.researchgate.net/publication/281901690_Zero_energy_and_zero_carbon_buildings_myths_and_facts

25. Vourdoubas, J. Use of sustainable energy systems in educational institutions. Engineering and Technology Journal, 9(10), 2024, pp. 5411-5419. https://doi.org/10.47191/etj/v9i10.23
26. PEB Exchange Program on Educational Building 2001/10, School Building Organization in Greece, OECD. https://dx.doi.org/10.1787/786100402633
27. https://ourworldindata.org/energy/country/greece
28. https://www.sch.gr/english