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Complete Data Inventory of a Geothermal Power Plant for Robust Cradle-to-Grave Life Cycle Assessment Results

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  • Lorenzo Tosti

    (R2ES Lab, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
    CSGI—Consortium for Colloid and Surface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy)

  • Nicola Ferrara

    (R2ES Lab, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
    CSGI—Consortium for Colloid and Surface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy)

  • Riccardo Basosi

    (R2ES Lab, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
    CSGI—Consortium for Colloid and Surface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
    CNR-ICCOM, National Research Council—Institute for the Chemistry of OrganoMetallic Compounds, 50019 Sesto Fiorentino, Italy)

  • Maria Laura Parisi

    (R2ES Lab, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
    CSGI—Consortium for Colloid and Surface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
    CNR-ICCOM, National Research Council—Institute for the Chemistry of OrganoMetallic Compounds, 50019 Sesto Fiorentino, Italy)

Abstract

Technologies to produce electric energy from renewable geothermal source are gaining increasing attention, due to their ability to provide a stable output suitable for baseload production. Performing life cycle assessment (LCA) of geothermal systems has become essential to evaluate their environmental performance. However, so far, no documented nor reliable information has been made available for developing robust LCA studies. This work provides a comprehensive inventory of the Italian Bagnore geothermal power plants system. The inventory is based exclusively on primary data, accounting for every life cycle stage of the system. Data quality was assessed by means of a pedigree matrix. The calculated LCA results showed, with an overall low level of uncertainty (2–3%), that the commissioning and operational phases accounted for more than 95% of the environmental profile. Direct emissions to atmosphere were shown to be the major environmental impact, particularly those released during the operational phase (84%). The environmental performances comparison with the average Italian electricity mix showed that the balance is always in favor of geothermal energy production, except in the climate change impact category. The overall outcome confirms the importance, for flash technology employing fluid with a high concentration of gas content, of using good quality primary data to obtain robust results.

Suggested Citation

  • Lorenzo Tosti & Nicola Ferrara & Riccardo Basosi & Maria Laura Parisi, 2020. "Complete Data Inventory of a Geothermal Power Plant for Robust Cradle-to-Grave Life Cycle Assessment Results," Energies, MDPI, vol. 13(11), pages 1-19, June.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2839-:d:366585
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    References listed on IDEAS

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    2. Parisi, M.L. & Maranghi, S. & Vesce, L. & Sinicropi, A. & Di Carlo, A. & Basosi, R., 2020. "Prospective life cycle assessment of third-generation photovoltaics at the pre-industrial scale: A long-term scenario approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 121(C).
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    4. 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.
    5. Buonocore, Elvira & Vanoli, Laura & Carotenuto, Alberto & Ulgiati, Sergio, 2015. "Integrating life cycle assessment and emergy synthesis for the evaluation of a dry steam geothermal power plant in Italy," Energy, Elsevier, vol. 86(C), pages 476-487.
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    7. Asdrubali, Francesco & Baldinelli, Giorgio & D’Alessandro, Francesco & Scrucca, Flavio, 2015. "Life cycle assessment of electricity production from renewable energies: Review and results harmonization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 1113-1122.
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    2. Maria Milousi & Athanasios Pappas & Andreas P. Vouros & Giouli Mihalakakou & Manolis Souliotis & Spiros Papaefthimiou, 2022. "Evaluating the Technical and Environmental Capabilities of Geothermal Systems through Life Cycle Assessment," Energies, MDPI, vol. 15(15), pages 1-30, August.
    3. 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.
    4. Mahmoud G. Hemeida & Ashraf M. Hemeida & Tomonobu Senjyu & Dina Osheba, 2022. "Renewable Energy Resources Technologies and Life Cycle Assessment: Review," Energies, MDPI, vol. 15(24), pages 1-36, December.
    5. Menberg, Kathrin & Heberle, Florian & Bott, Christoph & Brüggemann, Dieter & Bayer, Peter, 2021. "Environmental performance of a geothermal power plant using a hydrothermal resource in the Southern German Molasse Basin," Renewable Energy, Elsevier, vol. 167(C), pages 20-31.
    6. 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.
    7. 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).
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    9. 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.

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