The Life Cycle CO&lt;tex&gt;$_2$&lt;/tex&gt;Emission Performance of the DOE/NASA Solar Power Satellite System: A Comparison of Alternative Power Generation Systems in Japan

Hayami, Hitoshi; Nakamura, Masao; Yoshioka, Kanji

doi:10.1109/tsmcc.2004.843232

Cited by 27 publications

(8 citation statements)

References 5 publications

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“…For example, review papers that did not generate original emissions estimates were excluded. In cases where the same research group published serially on the same technology, when two studies did not report significantly different LCIs or results, we only included the latest or most complete reference; including multiple studies from the same research groups could artificially tighten the distribution. Consistency of application: We eliminated the work of Hayami and colleagues (2005) because that study looked at applications in space and thus was not included in the pool of our studies, which is limited to terrestrial applications. We also excluded the work of Nawaz and Tiwari (2006), as we could not separate the contribution of battery storage from that for the PV system.…”

Section: Harmonization Methodologymentioning

confidence: 99%

“…Consistency of application: We eliminated the work of Hayami and colleagues (2005) because that study looked at applications in space and thus was not included in the pool of our studies, which is limited to terrestrial applications. We also excluded the work of Nawaz and Tiwari (2006), as we could not separate the contribution of battery storage from that for the PV system.…”

Section: Harmonization Methodologymentioning

confidence: 99%

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Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation

Hsu

O’Donoughue²,

Fthenakis

et al. 2012

J of Industrial Ecology

231

158

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Key words:global warming industrial ecology renewable energy life cycle assessment (LCA) meta-analysis solar Supporting information is available on the JIE Web site SummaryPublished scientific literature contains many studies estimating life cycle greenhouse gas (GHG) emissions of residential and utility-scale solar photovoltaics (PVs). Despite the volume of published work, variability in results hinders generalized conclusions. Most variance between studies can be attributed to differences in methods and assumptions. To clarify the published results for use in decision making and other analyses, we conduct a metaanalysis of existing studies, harmonizing key performance characteristics to produce more comparable and consistently derived results.Screening 397 life cycle assessments (LCAs) relevant to PVs yielded 13 studies on crystalline silicon (c-Si) that met minimum standards of quality, transparency, and relevance. Prior to harmonization, the median of 42 estimates of life cycle GHG emissions from those 13 LCAs was 57 grams carbon dioxide equivalent per kilowatt-hour (g CO 2 -eq/kWh), with an interquartile range (IQR) of 44 to 73. After harmonizing key performance characteristics (irradiation of 1,700 kilowatt-hours per square meter per year (kWh/m 2 /yr); system lifetime of 30 years; module efficiency of 13.2% or 14.0%, depending on module type; and a performance ratio of 0.75 or 0.80, depending on installation, the median estimate decreased to 45 and the IQR tightened to 39 to 49. The median estimate and variability were reduced compared to published estimates mainly because of higher average assumptions for irradiation and system lifetime.For the sample of studies evaluated, harmonization effectively reduced variability, providing a clearer synopsis of the life cycle GHG emissions from c-Si PVs. The literature used in this harmonization neither covers all possible c-Si installations nor represents the distribution of deployed or manufactured c-Si PVs.

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Section: Harmonization Methodologymentioning

confidence: 99%

Section: Harmonization Methodologymentioning

confidence: 99%

Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation

Hsu

O’Donoughue²,

Fthenakis

et al. 2012

J of Industrial Ecology

231

158

View full text Add to dashboard Cite

show abstract

“…There is a need for proper modelling of the solar system to cover all the processes between the main demand and energy output with control design [31], [32], [33].The solar power generation with significant potential today stands at efficiency of 16% with the load factor of 0.22, hence this can provide a huge amount of power [34]. Hence long term scalability and the sustainability of the solar energy system need to be examined before replacing the coal-based plant [35], [36], [37].To check the reduction in carbon emissions using the Solar technology, proper analysis is required to know the total reduction of carbon footprint by replacement of coal-based power plants [38], [39]. The other renewable energy sources such as wind energy, tidal energy, hydro energy and geothermal energy also influences supply, global warming and security of energy supply.…”

Section: Introductionmentioning

confidence: 99%

Feasibility Analysis of Solar Technology Implementation in Restructured Power Sector With Reduced Carbon Footprints

et al. 2021

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Solar energy technology has gained significant attention in recent years. It has strongly emerged as an alternative to the conventional mode of electricity generation for developing countries like India for their rising energy needs. Solar energy based electricity generation not only addresses environmental concerns but also increases the energy security and reduces the carbon footprints generated by the coal-based power plant. To boost the share of Renewable energy in the energy mix, the renewable energy policy introduced by the government has acted as a catalyst for large scale deployment of solar energy system to push it as the major energy alternative for India. The normal intensity of solar radiation in India is 220 MW per km square with around 300 sunny days in a year, whereas the coal-based plant generates a huge amount of carbon footprints. Therefore, solar based power generation has the potential of not only reducing the emissions and but also it can cater the rising energy demand. Thus solar photovoltaic plants has become a major alternative energy option in India with the ability to give an improved power supply, reduced global warming and enhance the security of energy supply. In this paper, efforts have been made to look into the overall perspective of solar energy and coal based generation by studying and analyzing the present status, technologies use, accessibility, policies interventions, major contributions, future potentials and trends of solar energy and fossil fuels in the Indian power sector. A feasibility analysis of solar technology implementation with the replacement of coal based plant pant is carried out for Singrauli, India. Results of the proposed study shows that the coal-based power plant generates a huge amount of carbon footprints and it can be reduced by replacing the coal based power plants with solar energy based power generation system. Consequently solar energy based power generation system is a key alternative for developing countries like India having metrological parameters similar to the case study done in this paper with the capacity to provide an improved supply, decreased global warming in addition to improving the energy security.

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“…Recently, the renewable energy has drawn great attention due to energy shortage. Many renewable energy researches are focused on solar power system [1][2][3][4]. For the solar system, a precise sensor is indispensable to tracking the sunlight orientation.…”

Section: Introductionmentioning

confidence: 99%

Cubic Composite Sensor with Photodiodes for Tracking Solar Orientation

Chang

2013

Journal of Nanomaterials

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A cubic composite solar sensor with photo diode is proposed for tracking the relative solar orientation. The proposed solar sensor composes of five photodiode detectors which are placed on the front, rear, left, right, and horizontal facets in a cubic body, respectively. The solar detectors placed on five facets can detect solar power of different facets. Based on the geometric coordinate transformation principle, the relationship equations of solar light orientation between measured powers with respect to various facets can be conducted. As a result, the solar orientation can be precisely achieved without needing any assistance of electronic compass and extra orientation angle corrector. Eventually, the relative solar light orientation, the elevation angle, and azimuth angle of the solar light can be measured precisely.

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The Life Cycle CO<tex>$_2$</tex>Emission Performance of the DOE/NASA Solar Power Satellite System: A Comparison of Alternative Power Generation Systems in Japan

Cited by 27 publications

References 5 publications

Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation

Life Cycle Greenhouse Gas Emissions of Crystalline Silicon Photovoltaic Electricity Generation

Feasibility Analysis of Solar Technology Implementation in Restructured Power Sector With Reduced Carbon Footprints

Cubic Composite Sensor with Photodiodes for Tracking Solar Orientation

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