Comparison of geothermal with solar and wind power generation systems

Li, Kewen; Bian, Huiyuan; Liu, Changwei; Zhang, Danfeng; Yang, Yi

doi:10.1016/j.rser.2014.10.049

Cited by 222 publications

(98 citation statements)

References 37 publications

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“…Li et al [12] discussed possible factors which have led to the low growth rate of geothermal development. The main factors include high exploration risk, lower social acceptance, long payback and construction time and difficulty to assess resources.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Efficiency of Thermoelectric Generator by Optimizing Mechanical and Electrical Structures

Chen

Liu

et al. 2017

Energies

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Much attention has been paid to the application of low temperature thermal resources, especially for power generation in recent years. Most of the current commercialized thermal (including geothermal) power-generation technologies convert thermal energy to electric energy indirectly, that is, making mechanical work before producing electricity. Technology using a thermoelectric generator (TEG), however, can directly transform thermal energy into electricity through the Seebeck effect. TEG technology has many advantages such as compactness, quietness, and reliability because there are no moving parts. One of the biggest disadvantages of TEGs is the low efficiency from thermal to electric energy. For this reason, we redesigned and modified our previous 1 KW (at a temperature difference of around 120 • C) TEG system. The output power of the system was improved significantly, about 34.6% greater; the instantaneous efficiency of the TEG system could reach about 6.5%. Laboratory experiments have been conducted to measure the output power at different conditions: different connection modes between TEG modules, different mechanical structures, and different temperature differences between hot and cold sides. The TEG apparatus has been tested and the data have been presented. This kind of TEG power system can be applied in many thermal and geothermal sites with low temperature resources, including oil fields where fossil and geothermal energies are coproduced.

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Section: Introductionmentioning

confidence: 99%

Enhanced Efficiency of Thermoelectric Generator by Optimizing Mechanical and Electrical Structures

Chen

Liu

et al. 2017

Energies

Self Cite

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“…Impact of geothermal source mainly concern a) air pollution which occurs primarily from geothermal systems of high enthalpy, b) the water and thermal pollution from the discharge of geothermal water containing dissolved salts from which heat is extracted, c) the risk for (minor) seismic activity, d) the leaks that occur mainly in the early stages of exploitation and e) the noise. It is known that the geothermal energy has many advantages compared to the solar energy systems [14]. These advantages include: a) not affected by weather conditions, b) it is considered the energy of base load c) is energy of constant flow with low capacity factor (over 90% in many cases) d) requires less land surface and has less ecological impact.…”

Section: The Alternativesmentioning

confidence: 99%

Multi-criteria Analysis for Energy Independence from Renewable Energy Sources Case Study Zakynthos Island, Greece

Vardopoulos¹

2017

IJESD

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Abstract-The current research deals with renewable energy sources for the energy independence of Zakynthos Island in Greece. In order to define the most efficient renewable energy source, a multi-criteria analysis was used. The main criteria that were applied are the three pillars of sustainability, namely environment, society and economy. The aforementioned criteria were also subject to the DPSIR model of indicators, while a range of economic, environmental, social and technical sub-criteria were applied. The results, with regard to the delimitations set for the scope of the current research, indicate that the solar energy source systems (photovoltaics) are proved to be a more suitable alternative over a geothermal power station.

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“…Impact of geothermal source mainly concerns a) air pollution which occurs primarily from geothermal systems of high enthalpy, b) the water and thermal pollution from the discharge of geothermal water containing dissolved salts from which heat is extracted, c) the risk for (minor) seismic activity and subsidence, d) the leaks that occur mainly in the early stages of exploitation and e) the noise. It is known that the geothermal energy has many advantages compared to the solar energy systems (Li, Bian, Liu, Zhang & Yang, 2015). These advantages include: a) not affected by weather conditions, b) it is considered the energy of base load c) is energy of constant flow with low capacity factor (over 90% in many cases) d) requires less land surface and has less ecological impact.…”

Section: Geothermal Powermentioning

confidence: 99%

Multi-Criteria Decision-Making Approach for the Sustainable Autonomous Energy Generation through Renewable Sources. Studying Zakynthos Island in Greece

Vardopoulos

2017

EMSD

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Nowadays, energy demand is considered a notable world problem. The purpose of this study is to define, document and finally select an option of only one renewable energy source system, as to which is considered the most suitable solution from an environmental, social and economic point of view, for the energy independence of Zakynthos Island in Greece. This study examines the following alternatives; Biofuels Production Station, Geothermal Power Station, Hydroelectric Power Station, Solar Power Station and Wind Power Station. In order to determine the optimal renewable energy source, a multi-criteria decision-making approach is followed. The three pillars of sustainability, namely, the environment, the economy and the society, were used as the primary criteria in the context of the under determination goal. A significant number of environmental, economic and social sub-criteria were also developed and were subject to weight evaluation using both pairwise comparison and evaluation through structured interviews. Results, with regard to the delimitations set for the scope of the current study, indicate that solar energy source system is the optimal sustainable alternative.

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Comparison of geothermal with solar and wind power generation systems

Cited by 222 publications

References 37 publications

Enhanced Efficiency of Thermoelectric Generator by Optimizing Mechanical and Electrical Structures

Enhanced Efficiency of Thermoelectric Generator by Optimizing Mechanical and Electrical Structures

Multi-criteria Analysis for Energy Independence from Renewable Energy Sources Case Study Zakynthos Island, Greece

Multi-Criteria Decision-Making Approach for the Sustainable Autonomous Energy Generation through Renewable Sources. Studying Zakynthos Island in Greece

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