scholarly journals On the Marine Energy Resources of Mexico

2019 ◽  
Vol 7 (6) ◽  
pp. 191 ◽  
Author(s):  
Jassiel V. Hernández-Fontes ◽  
Angélica Felix ◽  
Edgar Mendoza ◽  
Yandy Rodríguez Cueto ◽  
Rodolfo Silva

The Atlantic and Pacific coasts of Mexico offer a variety of marine energy sources for exploitation. Although the Mexican government has made important efforts to reduce its dependence on fossil fuels, national participation in clean energies is still limited in terms of electricity production. This paper presents a practical theoretical assessment of marine energy sources around Mexico, with the aim of identifying potential zones for subsequent, more detailed, technical evaluations and project implementations. The energy sources considered are ocean currents, waves, salinity, and thermal gradients. Using global databases, the percentages of energy availability for the defined thresholds were computed to establish the prospective regions with the most persistent power availability. This approach proved to offer more meaningful information than simple averaged values. Moreover, some environmental and socio-economic factors to be considered for future ocean energy resource assessments in Mexico were also discussed. The results show that the wave energy potential is highest in the northwest of Mexico (~2–10 kW/m for more than 50% of the time), and that there is a constant source of ocean current energy off Quintana Roo state (~32–215 W/m2 for more than 50% of the time). The thermal gradient power is more persistent in the southwest and southeast of the country, where ~100–200 MW can be found 70% of the time. The salinity gradient energy is strongest in the southeast of Mexico. The practical approach presented here can be extended to perform preliminary resources assessments in regions where information is scarce.

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3658 ◽  
Author(s):  
Milad Shadman ◽  
Corbiniano Silva ◽  
Daiane Faller ◽  
Zhijia Wu ◽  
Luiz de Freitas Assad ◽  
...  

This study, firstly, provides an up-to-date global review of the potential, technologies, prototypes, installed capacities, and projects related to ocean renewable energy including wave, tidal, and thermal, and salinity gradient sources. Secondly, as a case study, we present a preliminary assessment of the wave, ocean current, and thermal gradient sources along the Brazilian coastline. The global status of the technological maturity of the projects, their different stages of development, and the current global installed capacity for different sources indicate the most promising technologies considering the trend of global interest. In Brazil, despite the extensive coastline and the fact that almost 82% of the Brazilian electricity matrix is renewable, ocean renewable energy resources are still unexplored. The results, using oceanographic fields produced by numerical models, show the significant potential of ocean thermal and wave energy sources in the northern and southern regions of the Brazilian coast, which could contribute as complementary supply sources in the national electricity matrix.


2013 ◽  
Vol 47 (5) ◽  
pp. 97-103 ◽  
Author(s):  
Ana Brito Melo ◽  
Eoin Sweeney ◽  
Jose Luis Villate

AbstractOcean energy is regarded as an important future source of energy generation in many countries for transition to a low-carbon future. While commercial interest in ocean energy is growing significantly at a global level, there are considerable investment costs and bottlenecks that will need to be overcome. Research and funds are spread over many different wave and marine current energy concepts under development, and there is still no technology convergence, in contrast to what happened in wind energy. Although an important marine energy resource, discussion of offshore wind energy is not included in this manuscript. This article focuses on the latest developments in ocean energy—in particular, open-sea testing facilities set up by several countries as a measure to encourage deployment and streamlining procedures—and gives an overview of projects going into the water this past year. In addition, the article highlights the importance of collaborative research and development on ocean energy projects and the unique role of the Ocean Energy Systems Implementing Agreement as an intergovernmental organization promoting the use of ocean energy (wave, marine currents, tidal, ocean thermal gradients and salinity gradients) for energy extraction.


2013 ◽  
Vol 291-294 ◽  
pp. 1332-1335
Author(s):  
Yin Tsuo Huang

Recent years, the price rise of energy resource , the climate change caused by the abuse of fossil fuels, the Tokyo Protocols which limited the ejection of greenhouse gas and many other things have caused unprecedented huge impact and threat. Taiwan , which relies 98% on importing energy sources, has very little local energy source , very low reservation of petrol and very small proportion of self-running coal and gas facilities, therefore the energy security condition has become quite severe. This essay mainly discusses the cognition and attitude of community residents towards renewable energy in Taiwan, analyzes people’s different cognition and attitude, elaborates the correlation between cognition and attitude towards renewable energy and in the end offer some suggestions to the related professionals and researchers.


2021 ◽  
Vol 899 (1) ◽  
pp. 012048
Author(s):  
Evangelia Karasmanaki

Abstract Examining willingness-to-pay (WTP) for renewable energy sources (RES) as well as views on energy topics can enable policymakers to design effective measures for facilitating the transition from fossil fuels to a renewable-based energy system. The aim of this study was to investigate environmental students’ willingness-to-pay for renewables and their views on various energy topics. Results showed that respondents preferred renewable-based electricity production to conventional energy production while solar energy emerged as the most preferred renewable type. In addition, most respondents were willing to pay for renewable energy but would pay relatively low sums of money per month. Moreover, respondents were divided over whether new lignite plants should be constructed in Greece. Finally, social media and special websites were the most favored media of daily information.


2016 ◽  
Vol 8 (3) ◽  
pp. 139 ◽  
Author(s):  
Ai Yuningsih ◽  
Ahmad Masduki

Metode penelitian potensi energi arus yang diterapkan adalah pengukuran arus, pengamatan pasang surut, pengamatan parameter meteorologi dan kondisi morfologi pesisir dan dasar laut daerah penelitian. Hasil penelitian menunjukkan bahwa lokasi penempatan turbin arus laut cukup memenuhi syarat dengan morfologi relatif landai pada kedalaman ± 20 meter dan dekat dari pemukiman penduduk. Kecepatan arus rata-rata di perairan Toyapakeh mencapai kecepatan 2,5 – 3,0 m/detik dengan durasi 9 – 18 jam/hari untuk kecepatan diatas 0,5 m/detik. Dengan demikian, perairan di Toyapakeh merupakan lokasi yang cukup potensial untuk dimanfaatkan sebagai sumber energi baru terbarukan, khususnya pembangkit Listrik Tenaga Arus Laut (PLTAL). Kata Kunci : energi arus laut, turbin arus laut, energi baru terbarukan, Selat Toyapakeh The methods of current energy potential study are current measurements, tidal and meteorological parameter observations, condition of coastal morphology and seafloor of the study area. The results show that, the location for turbine position is in area with relatively gentle slope morphology at a 20 meters water depth and it is close to local community. Based on the analysis of flow water conditions at Toyapakeh Strait, the average current velocity is about 2,5m/s to 3,0 m/s and within 24 hours, the flow velocity is greater than 0.5 m/s occurs for approximately 9 to 18 hours. Therefore, the results of the ocean current energy analysis indicate that the study area is very potential for using reneawable energy resource as a power plant location. Keywords: ocean currents energy, Sea Current Turbin, renewable energy, Toyapakeh Strait.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ayokunle Adesanya ◽  
Sanjay Misra ◽  
Rytis Maskeliunas ◽  
Robertas Damasevicius

PurposeThe limited supply of fossil fuels, constant rise in the demand of energy and the importance of reducing greenhouse emissions have brought the adoption of renewable energy sources for generation of electrical power. One of these sources that has the potential to supply the world’s energy needs is the ocean. Currently, ocean in West African region is mostly utilized for the extraction of oil and gas from the continental shelf. However, this resource is depleting, and the adaptation of ocean energy could be of major importance. The purpose of this paper is to discuss the possibilities of ocean-based renewable energy (OBRE) and analyze the economic impact of adapting an ocean energy using a thermal gradient (OTEC) approach for energy generation.Design/methodology/approachThe analysis is conducted from the perspective of cost, energy security and environmental protection.FindingsThis study shows that adapting ocean energy in the West Africa region can significantly produce the energy needed to match the rising energy demands for sustainable development of Nigeria. Although the transition toward using OBRE will incur high capital cost at the initial stage, eventually, it will lead to a cost-effective generation, transmission, environmental improvement and stable energy supply to match demand when compared with the conventional mode of generation in West Africa.Practical implicationsThis study will be helpful in determining the feasibility, performance, issues and environmental effects related to the generation and transmission of OBRE in the West Africa region.Originality/valueThe study will contribute toward analysis of the opportunities for adopting renewable energy sources and increasing energy sustainability for the West Africa coast regions.


Author(s):  
Soner Top ◽  
Hüseyin Vapur

As a developing country with over 70% external dependence on energy, there is an increasing demand for electricity in Turkey. In this study, energy resources strategies in Turkey have been investigated and the historical development of its energy usage was summarised. Turkey's energy demand has increased as a result of industrial development and the various energy sources have been selected in different periods to meet this need. In all periods, fossil fuels have taken the lead in energy production. Although investments in renewable and nuclear energy sources have increased, fossil energy sources will not be replaced in the near future. The future fossil fuel production, the electricity production and the greenhouse emissions have been calculated and interpreted by time series (ARIMA), statistically. The forecasts mainly show that natural gas based electricity generation will decrease to 9.3% and renewable energy based electricity generation will increase to 25.6% in the next decade. It is obvious that the fossil fuels based greenhouse emissions will be 375.61 million tons CO2 equivalent in 2026 and the largest share of this emission will be derived from the natural gas by 66.3 billion m3.


2021 ◽  
Vol 18 (4) ◽  
pp. 28-47
Author(s):  
Yu. I. Sokolov

The article analyzes the problems and risks of new-fangled renewable energy sources in the 21st century, which can radically change the energy picture of the world and to a certain extent reduce the risk of climate change. However, energy generation from wind is usually available 25—35% of the time, from the sun — 10—25%.Renewable energy sources (RES) face the problem of accumulating or supporting capacities that should replace the unstable generation of RES at the time of inevitable failures. RES cannot exist without excess reserve capacities on traditional energy carriers that can quickly increase and reduce electricity production. Abandoning hydrocarbons in the next 30—50 years looks unrealistic if countries want to maintain their competitiveness. The growth of the share of RES in the global energy balance is an extremely politicized phenomenon.The development of renewable generation creates risks for consumers. Especially for large ones. One of these risks is associated with the intermittent, unstable nature of renewable generation, which in recent years has been understood mainly as solar and wind power plants. In addition, to produce more solar panels, wind turbines and batteries for electric vehicles, humanity will need more specific resources — rare earth metals. The production of these metals is unsafe for the environment. It involves the consumption of a huge amount of water and electrical energy.Renewable energy sources may dominate, but it will take centuries. Demand is already growing, but fossil fuels will live long enough.


2020 ◽  
Vol 12 (4) ◽  
pp. 1468
Author(s):  
Mohammed Bouznit ◽  
María del P. Pablo-Romero ◽  
Antonio Sánchez-Braza

Algeria has enormous renewable energy potential. However, fossil fuels remain the main electricity generation source, and the country is the third largest CO2 emitter in Africa. Algeria is also particularly vulnerable to climate change. Therefore, a set of actions related to energy, forests, industry and waste sectors have been programmed, over the period 2015–2030, and the government action program has given priority to promote renewable energy. In this sense, Algeria is committed to significantly promote investment in renewable energy, during the period 2020–2030. Thus by 2030, renewable electricity production capacity will achieve 22,000 MW, representing 27% of total electricity generation. This paper analyzes the electricity generation measures implemented in Algeria to reach the required energy mix, the legislative framework, financial aid, the feed-in tariff system, the tax incentives, and the tender and auctions undertaken. The analyses reveal that, although the electricity price premium policy has not been revoked, the newly enacted tender scheme is designed to become the standard procedure for launching renewable energy projects in Algeria in the coming years.


2014 ◽  
Vol 953-954 ◽  
pp. 637-649
Author(s):  
Xiao Qing Cheng ◽  
Xi Zhang ◽  
Li Xin Yi

The global economic and social developments depend largely on fossil fuels nowadays. To cope with energy crisis and environment problems caused by consumption of fossil fuels, the renewable energy exploitation is an alternative path. As one kind of renewable ocean energy which can be applied into production, tidal energy is mainly utilized in electricity generation. China has abundant tidal energy resource, which mainly distribute in the southeast coastal areas where power supply is insufficient. China's tidal power generation started in 1958, and some experience and technologies have been accumulated from the long-time history of tidal power station construction and operation. At present, China’s tidal energy’s development and utilization are still in low level, and remain plagued by several challenges, such as high cost, and insufficiency of preferential policies and regulations. While, China's tidal power generation must be very promising in the foreseeable future, with a great deal of attention paid to the utilization of renewable energy and the perception of sustainable development.


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