Geochemical evolution of geothermal fluids around the western Red Sea and East African Rift geothermal provinces

Chandrasekharam, D.; Lashin, Aref; Al-Arifi, Nassir; Albassam, A.A.; Varun, C.

doi:10.1016/j.jseaes.2018.06.013

Cited by 8 publications

(4 citation statements)

References 63 publications

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“…Lake Abhe, which straddles the Ethiopia‐Djibouti border (Figure 3), has an unusual isotope value in comparison to other lakes (Figure 8f), but this is likely due to an error in the data source publication (Ayenew et al, 2008). It differs greatly from values reported in the literature by Houssein et al (2014) for Djibouti samples, cited by both Chandrasekharam et al (2018) and Awaleh et al (2015). Values reported by these authors plot near the evaporation line, in the vicinity of the Awash River (Figure 8f).…”

Section: Synthetic Review Of Ground and Surface Water Hydrochemical Datacontrasting

confidence: 81%

Geothermal energy resources in Ethiopia: Status review and insights from hydrochemistry of surface and groundwaters

Burnside

Montcoudiol

Becker³

et al. 2021

WIREs Water

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Ethiopia has an estimated >10,000 MW of geothermal energy potential, more than double its current power generating capacity (4,400 MW). Electricity access stands at 44% of the total population, with 31% in rural areas, so effective development of this low-carbon resource could make a significant impact to equitable delivery of electricity. However, geothermal energy exploitation must be done responsibly to protect valuable water resources under stress from climate-change driven drought conditions and competing uses across agricultural, domestic, and industrial sectors. Our review provides progress updates on geothermal developments-which soon aim to deliver more than 1,000 MW of electricityand performs a high-level assessment of hydrochemical data for ground and surface waters across Ethiopia. A water quality database was built using publicly available information and three quality control criteria: well-defined sample loca-

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Section: Synthetic Review Of Ground and Surface Water Hydrochemical Datacontrasting

confidence: 81%

Geothermal energy resources in Ethiopia: Status review and insights from hydrochemistry of surface and groundwaters

Burnside

Montcoudiol

Becker³

et al. 2021

WIREs Water

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“…200 Ma. In magmatic rift systems, geotherms can easily exceed 100°C/km locally (e.g., Omenda, 1997;Chandrasekharam et al, 2018) and…”

Section: Conceptual Model Of Permian Crustal Thinningmentioning

confidence: 99%

Tectono-sedimentary evolution of a rift system controlled by Permian post-orogenic extension and metamorphic core complex formation (Bidarray Basin and Ursuya dome, Western Pyrenees)

et al. 2019

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Distributed under a Creative Commons Attribution-NonCommercial-NoDerivatives| 4.0 International License

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“…Although the Table 1 Surface temperatures of selected thermal springs from the three provinces and the reservoir temperatures Source: 1 [18], 2 [26], 3 [27]; *geothermometry: [28] cation geoindicators [28,31] indicate the geothermal reservoir temperatures to be between 150 and 170°C for L. Asal and L. Abhe geothermal sites respectively (Table 1), the oxygen and hydrogen isotope signatures (Fig. 3) in the thermal waters indicate temperatures > 200°C, at depth of 1500 m [32].…”

Section: Resource Characterisationmentioning

confidence: 99%

“…Based on exploratory bore well data, it is proposed to build 112 MWe (932 × 10 6 kWh) power plant at L. Asal geothermal site by 2020 and several 1 MWe (9 × 10 6 kWh) power plants around L. Abhe and Hanle geothermal sites. This quantity of electricity is surplus to Djibouti, considering its population (~900,000, [19,29,32]). This energy can be utilized for desalination of seawater, and fresh water thus generated can be provided to the population to support their agricultural and domestic needs and make the country food secured and free the country from VWT.…”

Section: Resource Characterisationmentioning

confidence: 99%

Geothermal energy for desalination to secure food security: case study in Djibouti

Chandrasekharam

Lashin

Al-Arifi³

et al. 2019

Energ Sustain Soc

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Background: By the year 2025, nearly 3.5 billion people in the world will have no water, including 900,000 from Djibouti. The economic losses caused by the 2000-2012 drought pushed the country to a state of disaster. This has devastated Djibouti's economy and left millions hungry. This is due to the country's inability to grow food and dependence on the food imports. The 5 US$ million granted by the WB was not able to reduce the hunger and prevent further increase in poverty and social unrest due to want of food and water. This paper provides a solution to create a self-sustainable society that can live above the current poverty line. Methods: The study was carried out based on field investigation and published literature. Desalination cost comparison between fossil fuel-based technology and renewable energy-based technology was carried out based on data from working plants. These data were used to analyse the cost-benefit ratio of fresh water generated from seawater and its use in securing food to the population. Results: By developing the geothermal resources, the country can be lifted above the poverty line. What the country needs, to come out of this crisis, is fresh water supply. The country's geothermal energy resource can generate 900 × 10 6 kWh of electricity. The electricity required to generate 1000 m 3 /day (10 × 10 6 kg/year) of fresh water from the sea is about 11 × 10 6 MWh. The cost of desalinated water through geothermal energy sources is 1.6 US$/m 3 which is far less than the desalinated water generated through any other energy source. Billions of dollars given as aid for poverty alleviation can be utilized to develop geothermal power plants to provide permanent food security to the country. Conclusions: The rural population of Djibouti can improve their socioeconomic status and secure food security and eradicate hunger through geothermal energy source. Local governments also should play an important role in advising the funding institutions to develop geothermal power projects to support agricultural activity and create employment to the rural population and support a sustainable society.

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Geochemical evolution of geothermal fluids around the western Red Sea and East African Rift geothermal provinces

Cited by 8 publications

References 63 publications

Geothermal energy resources in Ethiopia: Status review and insights from hydrochemistry of surface and groundwaters

Geothermal energy resources in Ethiopia: Status review and insights from hydrochemistry of surface and groundwaters

Tectono-sedimentary evolution of a rift system controlled by Permian post-orogenic extension and metamorphic core complex formation (Bidarray Basin and Ursuya dome, Western Pyrenees)

Geothermal energy for desalination to secure food security: case study in Djibouti

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