Trends in Renewable Electricity Generation in the G20 Countries: An Analysis of the 1990–2020 Period

Sokulski, Carla Cristiane; Barros, Murillo Vetroni; Salvador, Rodrigo; Broday, Evandro Eduardo; Francisco, Antônio Carlos de

doi:10.3390/su14042084

Cited by 18 publications

(5 citation statements)

References 56 publications

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“…Moreover, these projects are obliged to comply with environmental regulations [26]. In addition, tax breaks and incentives play an important role in investments [27]. Wojewnik-Filipkowska et al [28] conducted a study analyzing renewable energy investments under uncertainty and risk conditions.…”

Section: Literature Reviewmentioning

confidence: 99%

Comprehensive Risk Analysis and Decision-Making Model for Hydroelectricity Energy Investments

Yüksel,

Eti,

Dinçer

et al. 2024

J. Soft. Comput. Decis. Anal.

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The risks of hydroelectricity energy investments should be managed effectively to increase the performance of these projects. Thus, more significant risks should be identified to take effective measures for risk management without experiencing high costs. Accordingly, the purpose of this study is to define critical risks in hydroelectricity energy investment projects by making a priority analysis. Within this scope, a new decision-making model is created. In the first stage, five different risks are examined by considering Spherical fuzzy Entropy. Moreover, the second stage consists of ranking emerging seven countries with the help of Spherical fuzzy multi-attribute ideal-real comparative assessment (MAIRCA). The main contribution of this study is that more important risks of hydroelectricity energy investments can be identified by the help of the priority analysis. This situation provides an opportunity to implement effective strategies to increase these investments without having high costs. Additionally, considering Spherical fuzzy sets has a positive impact on the appropriateness of the results. Since these numbers use a wider data range, the effectiveness of the analysis results can increase. It is determined that the most important risk is environmental risk with the highest weight value of 0.2478. Financial risks and personnel risks are other significant factors that affect the performance of the hydroelectricity energy investments. Furthermore, as a result of ranking the alternatives, it is seen that China is the most suitable country for hydroelectric energy investments. India and Mexico are other successful countries in this respect. However, Turkey and Indonesia have lower performance for this situation.

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Section: Literature Reviewmentioning

confidence: 99%

Comprehensive Risk Analysis and Decision-Making Model for Hydroelectricity Energy Investments

Yüksel,

Eti,

Dinçer

et al. 2024

J. Soft. Comput. Decis. Anal.

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“…Moreover, BEVs demand electricity. Despite the recent and outstanding growth of renewable sources of electricity such as wind and solar power, the electricity mix of many countries cannot be considered as a clean energy source (Sokulski et al, 2022). Figure 1a presents the results of a literature survey (Bauer et al, 2021;Cho et al, 2023; F I G U R E 1 (a) Comparison of life-cycle GHG emissions of internal combustion engine vehicles (ICEV), hybrid electric vehicles (HEV), fuel cell vehicles (FCV), battery electric vehicles (BEV), and solid oxide fuel cell vehicles (SOFCV) for different carbon intensities of the energy source of the vehicle.…”

Section: Comparing Options Available To Decarbonize Transportmentioning

confidence: 99%

“…Moreover, BEVs demand electricity. Despite the recent and outstanding growth of renewable sources of electricity such as wind and solar power, the electricity mix of many countries cannot be considered as a clean energy source (Sokulski et al, 2022). Figure 1a presents the results of a literature survey (Bauer et al, 2021; Cho et al, 2023; Del Pero et al, 2018; Diab et al, 2022; EPA, 2020; Faria et al, 2013; Giraldi et al, 2015; Howey et al, 2011; Marmiroli et al, 2018; Ou et al, 2009; Pereira et al, 2019; Tagliaferri et al, 2016; Velandia Vargas & Seabra, 2021) of the life‐cycle GHG emissions of many types of vehicles (including battery electric and internal combustion engine), to which we varied the carbon intensity of the energy source according to their typical range across the globe, as shown in Figure 1b for electricity, liquid fuels, and hydrogen.…”

Section: Comparing Options Available To Decarbonize Transportmentioning

confidence: 99%

Biofuel technologies: Lessons learned and pathways to decarbonization

Cantarella,

Leal Silva,

Nogueira

et al. 2023

GCB Bioenergy

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This Opinion highlights several successful cases of biofuel technologies recently described by the IEA Bioenergy Intertask Report on Lessons Learned. The report discussed the potential of biofuels to contribute to a significant market supply, thus replacing fossil fuels and mitigating global warming, and it underscores the challenges in expanding biofuel production and replicating successful models between countries and regions. Based on the lessons learned from conventional, established technologies, the authors analyzed policies, feedstocks, products, technologies, economics, environmental concerns, social aspects, scalability, and ease of implementation and replication in different countries or regions. There are blending mandates in place around the world to foster the use of biofuels. Dependence on the availability and price fluctuations of crop feedstocks may limit biofuel production in certain circumstances. Legal restrictions on using food crops as feedstocks present obstacles to scaling up production. Temporary constraints related to feedstock costs and availability, as evidenced by changes and postponements of biofuel blending mandates in various countries (particularly during the COVID‐19 pandemic) also pose challenges. Technological hurdles exist for advanced biofuels that implicate premium pricing. Still, 2G ethanol from sugarcane meets very strict feedstock requirements with a carbon footprint so low that only electric vehicles charged in Norway could have life‐cycle GHG emissions at the same level as a 2G ethanol‐fueled combustion engine car. The authors evaluate whether and how much electrification could contribute to advance the decarbonization efforts in different countries. Drawing from these observations, the authors express their viewpoints to assist researchers and policymakers in the energy sector in formulating viable approaches to combat the climate crisis.

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“…In fact, researchers are also looking for a variety of clean energy alternatives, and tidal current energy is one of them. In recent years, the development and utilization of tidal current energy resources have received more and more attention from countries around the world [4]. Due to its uneven distribution in time and space, it is necessary to understand the tidal and current characteristics of the target sea area and evaluate the level of tidal current energy resources before developing it.…”

Section: Introductionmentioning

confidence: 99%

Study on Critical Factors Affecting Tidal Current Energy Exploitation in the Guishan Channel Area of Zhoushan

Zhou

2022

Sustainability

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As a new type of clean and renewable energy, tidal current energy has attracted more and more attention from scholars. The Zhoushan Guishan Channel area (GCA) is an important part of the East China Sea port area, with strong currents due to its special terrain. In order to more comprehensively evaluate the characteristics of tidal energy development near the GCA, this paper uses the MIKE21 FM hydrodynamic model to simulate the tidal hydrodynamic process in the Zhoushan sea area and verifies the reliability of the model through the measured data. Based on the results of numerical simulations, the energy flow density, frequency of flow rate occurrence, flow asymmetry, flow rotation, and effective flow time that can be exploited are considered as the key factors affecting the development of tidal current energy. The distribution characteristics of each influencing factor in the region and the different influences on tidal current energy development are analyzed. Numerical simulations show that the average high-tide velocity in the GCA is lower than the ebb-tide velocity, and the duration of the high tide is also shorter than that of the ebb tide, which has a higher flow velocity than the surrounding area. The annual average energy flow density in the GCA is the highest at 4520 W/m2, and the spatial distribution is uneven. The resource level in the central part is much higher than that at both ends of the waterway. Three sections, i.e., A-A′, B-B′, and C-C′, with different key influence factors are selected for specific analysis, and it is concluded that the tidal energy development conditions are relatively superior near the B-B’ section in the middle of the GCA, and the exploitable power calculated using the Flux method is about 24.19 MW. The discussion of the results provides a certain reference for the development of local tidal current energy. These key factors affecting tidal current energy development can also be applied to assess the suitability of tidal current energy resource development in other regions.

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Trends in Renewable Electricity Generation in the G20 Countries: An Analysis of the 1990–2020 Period

Cited by 18 publications

References 56 publications

Comprehensive Risk Analysis and Decision-Making Model for Hydroelectricity Energy Investments

Comprehensive Risk Analysis and Decision-Making Model for Hydroelectricity Energy Investments

Biofuel technologies: Lessons learned and pathways to decarbonization

Study on Critical Factors Affecting Tidal Current Energy Exploitation in the Guishan Channel Area of Zhoushan

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