Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production
The Hellisheidi geothermal power plant, located in Iceland, is a combined heat and power double-flash geothermal plant with an installed capacity of 303.3 MW of electricity and 133 MW of hot water. This study aimed to elucidate the environmental impacts of the electricity and heat production from th...
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ftmdpi:oai:mdpi.com:/1996-1073/16/9/3616/ 2023-08-20T04:07:31+02:00 Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production Maryori Díaz-Ramírez Snorri Jokull Claudio Zuffi María Dolores Mainar-Toledo Giampaolo Manfrida 2023-04-22 application/pdf https://doi.org/10.3390/en16093616 EN eng Multidisciplinary Digital Publishing Institute A: Sustainable Energy https://dx.doi.org/10.3390/en16093616 https://creativecommons.org/licenses/by/4.0/ Energies; Volume 16; Issue 9; Pages: 3616 life-cycle assessment environmental indicators geothermal energy exergy electricity district heating system Text 2023 ftmdpi https://doi.org/10.3390/en16093616 2023-08-01T09:48:05Z The Hellisheidi geothermal power plant, located in Iceland, is a combined heat and power double-flash geothermal plant with an installed capacity of 303.3 MW of electricity and 133 MW of hot water. This study aimed to elucidate the environmental impacts of the electricity and heat production from this double-flash geothermal power plant. In this vein, firstly, the most updated inventory of the plant was generated, and secondly, a life-cycle assessment approach based on the exergy allocation factor was carried out instead of applying the traditionally used allocations in terms of mass and energy. The functional unit was defined as the production of 1 kWh of electricity and 1 kWh of hot water for district heating. The life-cycle stages included the (i) construction, (ii) operation (including abatement operations and maintenance), and (iii) well closure of the geothermal plant. All of the life-cycle stages from construction to dismantling were considered. Finally, the results on the partitioning of the environmental impact to electricity and heat with exergy allocations showed that most of the impact should be charged to electricity, as expected. Furthermore, the distribution of the environmental impacts among the life-cycle stages determined that the construction stage was the most impactful for the electricity and heat production. This result was attributable to the large consumption of steel that was demanded during the construction of the geothermal power plant (geothermal wells, equipment, and buildings). Impacts due to the abatement stage demonstrated that this stage satisfactorily reduced the total impact attributed to the three life-cycle stages of the geothermal power plant. Text Iceland MDPI Open Access Publishing Energies 16 9 3616 |
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MDPI Open Access Publishing |
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English |
topic |
life-cycle assessment environmental indicators geothermal energy exergy electricity district heating system |
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life-cycle assessment environmental indicators geothermal energy exergy electricity district heating system Maryori Díaz-Ramírez Snorri Jokull Claudio Zuffi María Dolores Mainar-Toledo Giampaolo Manfrida Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production |
topic_facet |
life-cycle assessment environmental indicators geothermal energy exergy electricity district heating system |
description |
The Hellisheidi geothermal power plant, located in Iceland, is a combined heat and power double-flash geothermal plant with an installed capacity of 303.3 MW of electricity and 133 MW of hot water. This study aimed to elucidate the environmental impacts of the electricity and heat production from this double-flash geothermal power plant. In this vein, firstly, the most updated inventory of the plant was generated, and secondly, a life-cycle assessment approach based on the exergy allocation factor was carried out instead of applying the traditionally used allocations in terms of mass and energy. The functional unit was defined as the production of 1 kWh of electricity and 1 kWh of hot water for district heating. The life-cycle stages included the (i) construction, (ii) operation (including abatement operations and maintenance), and (iii) well closure of the geothermal plant. All of the life-cycle stages from construction to dismantling were considered. Finally, the results on the partitioning of the environmental impact to electricity and heat with exergy allocations showed that most of the impact should be charged to electricity, as expected. Furthermore, the distribution of the environmental impacts among the life-cycle stages determined that the construction stage was the most impactful for the electricity and heat production. This result was attributable to the large consumption of steel that was demanded during the construction of the geothermal power plant (geothermal wells, equipment, and buildings). Impacts due to the abatement stage demonstrated that this stage satisfactorily reduced the total impact attributed to the three life-cycle stages of the geothermal power plant. |
format |
Text |
author |
Maryori Díaz-Ramírez Snorri Jokull Claudio Zuffi María Dolores Mainar-Toledo Giampaolo Manfrida |
author_facet |
Maryori Díaz-Ramírez Snorri Jokull Claudio Zuffi María Dolores Mainar-Toledo Giampaolo Manfrida |
author_sort |
Maryori Díaz-Ramírez |
title |
Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production |
title_short |
Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production |
title_full |
Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production |
title_fullStr |
Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production |
title_full_unstemmed |
Environmental Assessment of Hellisheidi Geothermal Power Plant based on Exergy Allocation Factors for Heat and Electricity Production |
title_sort |
environmental assessment of hellisheidi geothermal power plant based on exergy allocation factors for heat and electricity production |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/en16093616 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Energies; Volume 16; Issue 9; Pages: 3616 |
op_relation |
A: Sustainable Energy https://dx.doi.org/10.3390/en16093616 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/en16093616 |
container_title |
Energies |
container_volume |
16 |
container_issue |
9 |
container_start_page |
3616 |
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