Measurement of Energy Production from Biogas: Evidence from the Wastewater Treatment Plant in Durres


  •   Stela Sefa

  •   Tania Floqi

  •   Julian Sefa


The wastewater treatment plant serving the city of Durres, which is the second most populous city of Albania, employs the tertiary advanced wastewater treatment method and engages in biogas production to achieve energy efficiency. In order to empirically evaluate the plant’s energy efficiency realization, the total biogas produced and converted to electricity for daily consumption was measured during a three years period (2016 - 2018). The highest electricity produced was recorded in 2016, with a daily average of 844kWh compared to 550kWh and 370kWh in 2017 and 2018, respectively. So that the plant meets proper criteria to classify as an energy-efficient entity, 30.0 percent of its electricity consumption must be derived from biogas. Converted in kWh, the plant should generate 2,975 kWh/day. Based on the biomass and energy values measured during the study period, it is concluded that electricity supplied from biogas met 6.0 percent of the plant’s energy requirements, or one fifth of the energy-efficiency target. While the plant was successful in carrying out the full waste-to-energy production process, the electricity supplied from biogas was very low and did not fulfil the plant’s self-energy requirements.

Keywords: wastewater treatment plant, biogas, renewable energy, electricity, energy efficiency


Operation and Maintenance Manual of Wastewater Treatment Plant Durres, May 2011.

Directive 2009/28/EC “On the promotion of the use of energy from renewable sources”.

ISO 9001:2015 “Quality management systems – Requirements”.

Yunus A. Çengel, Michael A. Boles “Thermodynamic –– 7th Edition”.

M. Walker, Y. Zhang, S. Heaven, C. Banks, “Potential errors in the quantitative evaluation of biogas production in anaerobic digestion processes,” Bioresource Technology, Vol. 100, 2009. G. O. Young, “Synthetic structure of industrial plastics,” in Plastics, 2nd ed. vol. 3, J. Peters, Ed. New York: McGraw-Hill, 1964, pp. 15-64.

ISO/OIS 14853 “Determination of Anaerobic digestion”.

Stefano Marzorati, 2016 web:


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How to Cite
Sefa, S., Floqi, T. and Sefa, J. 2020. Measurement of Energy Production from Biogas: Evidence from the Wastewater Treatment Plant in Durres. European Journal of Engineering and Technology Research. 5, 10 (Oct. 2020), 1260–1262. DOI: