CO2 emissions from renewables: solar pv, hydrothermal and EGS sources

Chandrasekharam, D.; Pathegama, G Ranjith

doi:10.1007/s40948-019-00135-y

Cited by 21 publications

(10 citation statements)

References 63 publications

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“…Various works present their own methodologies to estimate the CO 2 footprint. [35][36][37][38] In general, CO 2 emissions of diesel are calculated based on the fuel consumed, CO 2 emissions of PV, micro-hydro, and battery storage are calculated based on the energy consumed.…”

Section: Emissions Estimationmentioning

confidence: 99%

Techno‐Economic Assessment of Renewable Energy‐based Microgrids in the Amazon Remote Communities in Ecuador

et al. 2021

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Section: Emissions Estimationmentioning

confidence: 99%

Techno‐Economic Assessment of Renewable Energy‐based Microgrids in the Amazon Remote Communities in Ecuador

et al. 2021

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“…Amongst the renewables, the contribution of hydropower to electricity generation is the highest (16%), followed by wind (6%), solar PV (3%), and geothermal (0.4%) 1,2 . Geothermal energy has an advantage over other renewables due to its ability to provide baseload electricity and low carbon footprint 3,4 . The present electricity generating capacity from geothermal energy is 15.950 MWe, 5 and this production is expected to surge above 19.361 MWe by 2025 5 .…”

Section: Introductionmentioning

confidence: 99%

“…1,2 Geothermal energy has an advantage over other renewables due to its ability to provide baseload electricity and low carbon footprint. 3,4 The present electricity generating capacity from geothermal energy is 15.950 MWe, 5 and this production is expected to surge above 19.361 MWe by 2025. 5 While hydrothermal energy source is site-specific, located in volcanic regions, subduction, and deep continental rift environments, EGS (Enhanced Geothermal Systems, EGS) has no site specification and can be harnessed anywhere on the earth from the heat generated by granites.…”

Section: Introductionmentioning

confidence: 99%

Geothermal resources for sustainable development: A case study

Baba

Chandrasekharam

2022

Intl J of Energy Research

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Summary Turkey's primary energy source is fossil fuels, with a contribution of 55%. According to the International Energy Agency forecast, fossil fuels will continue to be the primary energy source for the next decade. The current CO2 emissions from fossil fuel‐based energy are 400 Mt. If the present energy usage trend continues, then the emissions will cross 500 Mt by 2030. However, Turkey has large scope to mitigate climate‐related issues and follow sustainable development agenda by increasing the share of geothermal energy as a primary energy source mix. The country established a strong geothermal energy program in 1984 by installing a 17 MWe geothermal power plant in Kızıldere and made tremendous progress in this field. Currently, the power generation has crossed 1665 MWe. Turkey has drawn a new road map to enhance its primary energy source mix by developing its radiogenic granites (Enhanced Geothermal Systems) for power generation and carbon dioxide capture programs. This is an emerging technology that is being recommended for Turkey. Currently, France, Australia, and the United Kingdom are surging ahead in implementing Enhanced Geothermal Systems (EGS), and France has established a pilot power plant using EGS and generating 10 MWe. The United Kingdom will be starting its 3 MWe power plant. The hydrothermal source, in combination with Enhanced Geothermal Systems, can contain the annual CO2 emissions to 500 Mt and reduce the per‐capita CO2 emissions to 4.5 tons annually. One of the greatest contributions to climate mitigation and sustainable development made by the geothermal industry is the sequestration of CO2 from the Kızıldere geothermal power plant for the manufacturıng of dry ice and use CO2 from the Tuzla geothermal power plant for minimizing scaling. This dry ice technology can be extended to the cement industry to capture 18 billion CO2 being emitted annually from clinker manufacturıng units. The dry ice will be useful in combating forest fires that are common in Turkey. The article discusses the new technological developments that Turkey is adopting to mitigate climate change and achieve sustainable development goals.

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“…Moreover, the geothermal well may be used as thermal energy storage (TES) for the solar heat produced during energy oversupply intervals [3]. In terms of CO 2 emissions, some the geothermal based power systems show a rate of emission under 500 g of CO 2 per kWh, which is the lowest range of emission index in comparison to Hydro-power, solar photovoltaic and fossil sources [6].…”

Section: Introductionmentioning

confidence: 99%

Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation

et al. 2022

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Concentrated Solar Power (CSP) and geothermal energy systems are outlined as two of the most promising technologies for sustainable and reliable electricity generation. Several studies in the technical literature have pointed out that the hybridization of solar and geothermal energy sources could lead to a reduction of the levelized cost of energy (LCOE) of geothermal systems, as well as improving the capacity factor of CSP systems. However, the technical literature shows that the integration of solar thermal collectors does not present a positive impact in all scenarios analyzed. The present study aims to further analyze the competitiveness of the hybridization of solar and geothermal systems under high irradiation conditions such as those observed in the Andean region in northern Chile. The evaluation was carried out by coupling a thermodynamic model in Engineering Equation Solver (EES) with a solar thermal model in the System Advisor Model (SAM). The assessment considers the configuration of an existing geothermal plant, considering the design constraints associated with the actual operating conditions of the plant. The analysis is based on an energy and exergy assessment, allowing us to identify the efficiency of the subsystems introduced for the hybridization and assess the competitiveness of the hybrid schemes by an economic assessment in terms of the LCOE. The results show that the hybrid schemes allow a reduction of the LCOE of a geothermal stand-alone plant by about 10 USD/MWh, increasing the competitiveness of the geothermal system. However, a large variation on such a reduction is observed depending on the size of the solar field and the storage tank of the solar system.

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CO2 emissions from renewables: solar pv, hydrothermal and EGS sources

Cited by 21 publications

References 63 publications

Techno‐Economic Assessment of Renewable Energy‐based Microgrids in the Amazon Remote Communities in Ecuador

Techno‐Economic Assessment of Renewable Energy‐based Microgrids in the Amazon Remote Communities in Ecuador

Geothermal resources for sustainable development: A case study

Assessing the Hybridization of an Existing Geothermal Plant by Coupling a CSP System for Increasing Power Generation

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