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Life Cycle Analysis of a Geothermal Power Plant: Comparison of the Environmental Performance with Other Renewable Energy Systems

Author

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  • Riccardo Basosi

    (RES Lab, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
    Center for Colloid and Surface Science, 50019 Firenze, Italy)

  • Roberto Bonciani

    (Enel Green Power, 56122 Pisa, Italy)

  • Dario Frosali

    (Department of Industrial Engineering, University of Florence, 50135 Florence, Italy)

  • Giampaolo Manfrida

    (Center for Colloid and Surface Science, 50019 Firenze, Italy
    Department of Industrial Engineering, University of Florence, 50135 Florence, Italy)

  • Maria Laura Parisi

    (RES Lab, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
    Center for Colloid and Surface Science, 50019 Firenze, Italy)

  • Franco Sansone

    (Enel Green Power, 56122 Pisa, Italy)

Abstract

A life cycle analysis was performed for the assessment of the environmental performances of three existing Italian power plants of comparable nominal power operating with different sources of renewable energy: Geothermal, solar, and wind. Primary data were used for building the life cycle inventories. The results are characterized by employing a wide portfolio of environmental indicators employing the ReCiPe 2016 and the ILCD 2011 Midpoint+ methods; normalization and weighting are also applied using the ReCiPe 2016 method at the endpoint level. The midpoint results demonstrate a good eco-profile of the geothermal power plant compared to other renewable energy systems and a definite step forward over the performance of the national energy mix. The Eco-Point single score calculation showed that wind energy is the best technology with a value of 0.0012 Eco-points/kWh, a result in line with previously documented life cycle analysis studies. Nevertheless, the geothermal power plant achieved a value of 0.0177 Eco-points/kWh which is close to that calculated for the photovoltaic plant (0.0087 Eco-points/kWh) and much lower than the national energy mix one (0.1240 Eco-points/kWh). Also, a scenario analysis allowed for a critical discussion about potential improvements to the environmental performance of the geothermal power plant.

Suggested Citation

  • Riccardo Basosi & Roberto Bonciani & Dario Frosali & Giampaolo Manfrida & Maria Laura Parisi & Franco Sansone, 2020. "Life Cycle Analysis of a Geothermal Power Plant: Comparison of the Environmental Performance with Other Renewable Energy Systems," Sustainability, MDPI, vol. 12(7), pages 1-29, April.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:7:p:2786-:d:340088
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    2. Sigurjónsson, Hafþór Ægir & Cook, David & Davíðsdóttir, Brynhildur & Bogason, Sigurður G., 2021. "A life-cycle analysis of deep enhanced geothermal systems – The case studies of Reykjanes, Iceland and Vendenheim, France," Renewable Energy, Elsevier, vol. 177(C), pages 1076-1086.
    3. Gkousis, Spiros & Thomassen, Gwenny & Welkenhuysen, Kris & Compernolle, Tine, 2022. "Dynamic life cycle assessment of geothermal heat production from medium enthalpy hydrothermal resources," Applied Energy, Elsevier, vol. 328(C).
    4. Daniele Fiaschi & Giampaolo Manfrida & Barbara Mendecka & Lorenzo Tosti & Maria Laura Parisi, 2021. "A Comparison of Different Approaches for Assessing Energy Outputs of Combined Heat and Power Geothermal Plants," Sustainability, MDPI, vol. 13(8), pages 1-13, April.
    5. Alejandro García-Gil & Miguel Mejías Moreno & Eduardo Garrido Schneider & Miguel Ángel Marazuela & Corinna Abesser & Jesús Mateo Lázaro & José Ángel Sánchez Navarro, 2020. "Nested Shallow Geothermal Systems," Sustainability, MDPI, vol. 12(12), pages 1-13, June.
    6. Violeta Motuzienė & Kęstutis Čiuprinskas & Artur Rogoža & Vilūnė Lapinskienė, 2022. "A Review of the Life Cycle Analysis Results for Different Energy Conversion Technologies," Energies, MDPI, vol. 15(22), pages 1-26, November.
    7. Rahman, Abidur & Farrok, Omar & Haque, Md Mejbaul, 2022. "Environmental impact of renewable energy source based electrical power plants: Solar, wind, hydroelectric, biomass, geothermal, tidal, ocean, and osmotic," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
    8. Maria Laura Parisi & Melanie Douziech & Lorenzo Tosti & Paula Pérez-López & Barbara Mendecka & Sergio Ulgiati & Daniele Fiaschi & Giampaolo Manfrida & Isabelle Blanc, 2020. "Definition of LCA Guidelines in the Geothermal Sector to Enhance Result Comparability," Energies, MDPI, vol. 13(14), pages 1-18, July.
    9. Gkousis, Spiros & Welkenhuysen, Kris & Compernolle, Tine, 2022. "Deep geothermal energy extraction, a review on environmental hotspots with focus on geo-technical site conditions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 162(C).
    10. Maryori Díaz-Ramírez & Snorri Jokull & Claudio Zuffi & María Dolores Mainar-Toledo & Giampaolo Manfrida, 2023. "Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production," Energies, MDPI, vol. 16(9), pages 1-17, April.
    11. Vitantonio Colucci & Giampaolo Manfrida & Barbara Mendecka & Lorenzo Talluri & Claudio Zuffi, 2021. "LCA and Exergo-Environmental Evaluation of a Combined Heat and Power Double-Flash Geothermal Power Plant," Sustainability, MDPI, vol. 13(4), pages 1-23, February.
    12. Milousi, Maria & Souliotis, Manolis, 2023. "A circular economy approach to residential solar thermal systems," Renewable Energy, Elsevier, vol. 207(C), pages 242-252.
    13. Vaccari, Marco & Pannocchia, Gabriele & Tognotti, Leonardo & Paci, Marco, 2023. "Rigorous simulation of geothermal power plants to evaluate environmental performance of alternative configurations," Renewable Energy, Elsevier, vol. 207(C), pages 471-483.
    14. Giambattista Guidi & Anna Carmela Violante & Simona De Iuliis, 2023. "Environmental Impact of Electricity Generation Technologies: A Comparison between Conventional, Nuclear, and Renewable Technologies," Energies, MDPI, vol. 16(23), pages 1-33, November.

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