scholarly journals Ocean Energy - A Clean Energy Source

2019 ◽  
Vol 4 (1) ◽  
pp. 5-11 ◽  
Author(s):  
Phuoc Quy Phong Nguyen ◽  
Van Huong Dong
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
World Ocean ◽  
Clean Energy ◽  
Ocean Energy ◽  
Energy Technologies ◽  
The World ◽  
The Status ◽  
Clean Energy Source

The world is constantly seeking new sources of energy to replace the use of coal and fossil fuels to generate electricity. And a strong source of energy from the ocean is one of the hopes of scientists around the world. Ocean energy is an endless renewable energy source for making electricity used for the world. Marine technology was once considered too expensive to be a viable source of alternative clean energy, especially compared to already developed products such as wind and solar. However, with the increased price of oil and the issues of global warming and national security, U.S. coastal sites are looking to add ocean energy to their renewable energy portfolios. This paper gives an overview of ocean energy technologies, focusing on two different types: wave, tidal. It outlines the operating principles, the status, and the efficiency and cost of generating energy associated with each technology.

scholarly journals Sustainability in renewable energy businesses

2021 ◽  
pp. 251-256
Author(s):  
Gabriel Grabowski
Keyword(s):  
Renewable Energy ◽  
Greenhouse Gas Emission ◽  
Educational Institution ◽  
Energy Sources ◽  
Ocean Energy ◽  
The Sustainable Development ◽  
Energy Technologies ◽  
Public Resource ◽  
First Case ◽  
The World

The sustainable development goal 7 (affordable and clean energy) seeks to ensure that energy is clean, affordable, available and accessible to all (SD Goals, https://unstats.un.org/sdgs/indicators). Replacing fossil fuel-based energy sources with renewable ones, which include: bioenergy, direct solar energy, geothermal energy, hydropower, wind and ocean energy (tide and wave), would gradually help the world achieve the idea of sustainability. Renewable energy technologies provide an excellent opportunity for mitigation of greenhouse gas emission and reduce global warming through substituting conventional energy sources (Panwar, Kaushik, & Kothari, 2011; Owusu & Asumadu-Sarkodie, 2016). Nevertheless, investment costs, as well as political environment and market conditions, have become barriers preventing countries from full utilisation of the potential to improve the quality of air or water. The aim of the chapter is to initiate discussion on the importance of renewable energy as well as its environmental and society-related health aspects. Two short case studies presented in the text allow to describe projects concerning solar installations. In the first case, it is educational institution investing in thermal solar panel systems to supply heat for domestic hot water. The results of research conducted by Filho et al. (2019) on a small sample of universities from around the world indicate that in more than half of them, only a small share of energy consumption comes from renewable sources, whilst the European Union policy has identified promotion of energy efficiency in buildings, including educational ones, as a key objective of its energy and climate policy (EPBD Recast, 2010). In the second case study, thoughts on photovoltaic systems installed to supply buildings with electricity are contained and the problem of public resource support forms for that purpose are discussed.

scholarly journals Different forms of hydrogen production: a review and future perspectives

2022 ◽  
Vol 8 (2) ◽  
pp. 49-58
Author(s):  
Grazielle Cristina de Araujo ◽  
Jair Antonio Cruz Siqueira ◽  
Loreci Zanardini ◽  
João Felipe Peixoto Marques ◽  
Rafaela Lazzarin ◽  
...  
Keyword(s):  
Energy Source ◽  
Hydrogen Production ◽  
Literature Review ◽  
Greenhouse Gases ◽  
Fossil Fuels ◽  
Clean Energy ◽  
Biohydrogen Production ◽  
Research Centers ◽  
Future Perspectives ◽  
Clean Energy Source

There was a significant increase in the concern with climate issues, among them highlighted as the derivation of greenhouse gases from the burning fossil fuels, leading several research centers and researchers to seek new sources of less polluting energy, independent of the burn-based matrix of fuels. In this context, the present work has as main presenter a literature review, perspective and comparisons regarding the use of hydrogen as a clean energy source, presenting three main ways of obtaining it: a) through electrolysis using renewable sources; b) biohydrogen production, based on the photosynthesis of plants and algae; c) production through biodigesters.

scholarly journals On the Way of Policy Making to Reduce the Reliance of Fossil Fuels: Case Study of Iran

2020 ◽  
Vol 12 (24) ◽  
pp. 10606
Author(s):  
Morteza Aien ◽  
Omid Mahdavi
Keyword(s):  
Renewable Energy ◽  
Policy Making ◽  
Fossil Fuels ◽  
Clean Energy ◽  
Energy Resources ◽  
Energy Structure ◽  
East Region ◽  
The World ◽  
Oil And Natural Gas ◽  
Gas Fields

Nowadays, fossil fuels are well known as a predominant source of energy in the planet. Located in the Middle East region, Iran holds one of the largest fossil fuel reservoirs in the world. The country has abundant oil and natural gas fields in various regions; some of them are shared between other countries and have not reached their operational capacity yet. Meanwhile, during recent years and due to global warming followed by environmental global contracts such as Kyoto protocol, using fossil fuels is being criticized to a large extent around the world. Therefore, the global interest has been focused toward clean energy resources. Furthermore, endowed with sundry geographical pattern throughout its land, Iran has adequate renewable energy potentials. So, there will be a serious paradox affecting its whole energy policy: more exploration and extraction of conventional fossil fuels or take advantage of renewable and sustainable energy resources? In this paper, energy structure of Iran is generally overviewed, followed by study of renewable energy potentials in various parts of the country. Afterwards, policy making in renewable energy market, systems, and applicable strategies are elaborated. Furthermore, a number of barriers obstructing the development path of renewable energy schemes and initiatives are presented and discussed in detail.

1. What are renewables?

2020 ◽  
pp. 1-15
Author(s):  
Nick Jelley
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Renewable Energy ◽  
Mass Production ◽  
Fossil Fuels ◽  
Industrial Revolution ◽  
18Th Century ◽  
Clean Energy ◽  
The World ◽  
History Of

‘What are renewables?’ defines renewable energy and provides a brief history of its use. It focuses on energy generated by solar, wind, and hydropower. These energy sources are renewable, in the sense that they are naturally replenished within days to decades. Only a few years ago, giving up our reliance on fossil fuels to tackle global warming would have been very difficult, as they are so enmeshed in our society and any alternative was very expensive. Nearly all of the sources of energy up to the 18th century were from renewables, after which time the world increasingly used fossil fuels. They powered the industrial revolution around the globe, and now provide most of our energy. But this dependence is unsustainable, because their use causes global warming, climate change, and pollution. Other than hydropower, which grew steadily during the 20th century and now provides almost a sixth of the world’s electricity demand, renewable energy was a neglected resource for power production for most of this period, being economically uncompetitive. But now, renewables are competitive, particularly through the support of feed-in tariffs and mass production, and governments are starting to pay more attention to clean energy, as the threat of climate change draws closer. Moving away from fossil fuels to renewables to supply both heat and electricity sustainably has become essential.

scholarly journals The Drivers and Barriers of Renewable Energy Applications and Development in Uganda: A Review

2018 ◽  
Vol 1 (1) ◽  
pp. 9-39 ◽  
Author(s):  
Adebayo Fashina ◽  
Mustafa Mundu ◽  
Oluwole Akiyode ◽  
Lookman Abdullah ◽  
Dahiru Sanni ◽  
...  
Keyword(s):  
Climate Change ◽  
Energy Source ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Evidence Based ◽  
Global Awareness ◽  
Energy Applications ◽  
The Status ◽  
Barriers And Challenges

Following the increasing global awareness of the dangers posed by the present state of climate change, many countries such as Uganda have adapted long-term plans for a transition to decarbonised economies. A major strategy for decarbonisation is to replace fossil fuels with renewable energy (RE) sources as the fundamental energy source. Uganda has substantial RE resources for the provision of energy services and production, yet these resources remain untapped. It is therefore crucial that the use of these abundant resources should be heightened. This paper examines and discusses the potential and current RE utilization and development in Uganda from the perspective of sustainable development. The status of the different RE resources and their application/utilization, including details of existing projects in the country, are carefully explored and discussed. The possible drivers for a huge advancement of RE applications and development in Uganda are also discussed before elucidating the major barriers and challenges faced by the energy sector as regards RE. Measures and policies required to facilitate the utilization of RE in Uganda are proposed. These evidence-based policies could guide the delivery of affordable and sustainable energy solutions for all by 2030 in Uganda.

scholarly journals GREEN ENERGY: AN ANALYTICAL DISCOURSE

2015 ◽  
Vol 77 (4) ◽  
Author(s):  
N. Baluch ◽  
S. Mohtar ◽  
A. S. Ariffin
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Energy Use ◽  
Oil And Gas ◽  
Clean Energy ◽  
Green Energy ◽  
Energy Prices ◽  
Energy Technologies ◽  
Energy Needs ◽  
To Come

The climate change, the global warming, the population growth and the continuous demand on energy and electricity in specific made renewable energy one of the most appropriate and fitting to answer all these changes of our environment. However, the vested interested groups belonging to the fossil fuel cartel continue working tirelessly to discourage the use of renewable energy and renewable energy solutions in the world. Despite the recusant efforts of the Oil Cartel, renewable energy use has grown much faster than anyone anticipated. This paper: defines green and renewable energy; highlights its benefits; and illustrates that clean energy technologies are prepared for accelerated and widespread expansion in the global power sector. The paper critically examines the recusant efforts of the Oil Cartel undermining green renewable energy sector by bankrolling the production of unconventional oil and gas; and demonstrates that over-reliance on fossil fuels for power generation has significant health, environmental, and economic risks and is not a long-term solution to our energy needs. The paper concludes that a global transition to renewable energy is already underway. Renewable Energy offers an alternative to conventional sources and grants us greater control over future energy prices and supply. The energy choices we make during this pivotal moment will have huge consequences for our health, our climate, and our economy for decades to come.

scholarly journals Selection Guidelines for Wind Energy Technologies

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3244
Author(s):  
A. G. Olabi ◽  
Tabbi Wilberforce ◽  
Khaled Elsaid ◽  
Tareq Salameh ◽  
Enas Taha Sayed ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Wind Energy ◽  
Fossil Fuels ◽  
Optimization Techniques ◽  
Wind Energy Conversion ◽  
Wind Energy Conversion Systems ◽  
Energy Technologies ◽  
The World ◽  
Energy Conversion Systems ◽  
Materials Used

The building block of all economies across the world is subject to the medium in which energy is harnessed. Renewable energy is currently one of the recommended substitutes for fossil fuels due to its environmentally friendly nature. Wind energy, which is considered as one of the promising renewable energy forms, has gained lots of attention in the last few decades due to its sustainability as well as viability. This review presents a detailed investigation into this technology as well as factors impeding its commercialization. General selection guidelines for the available wind turbine technologies are presented. Prospects of various components associated with wind energy conversion systems are thoroughly discussed with their limitations equally captured in this report. The need for further optimization techniques in terms of design and materials used for the development of each component is highlighted.

scholarly journals Policy and market drivers for advancing clean energy

2019 ◽  
Author(s):  
Steven Dahlke ◽  
John Sterling ◽  
Colin Meehan
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Business Models ◽  
Clean Energy ◽  
Energy Integration ◽  
Market Structures ◽  
Energy Technologies ◽  
Tax Relief ◽  
Project Costs ◽  
Energy Projects

This chapter reviews important policies and market trends shaping the global development of clean energy technologies. Stimulus policies in the form of feed-in tariffs, tax relief, and renewable portfolio standards along with substantial research & development enabled clean energy projects to overcome early commercialization barriers. As a result, clean energy project costs are now competitive with or lower than conventional fossil fuels in most markets around the world. Policymakers and energy consumers are responding by increasing clean energy targets to high levels approaching 100% in a growing number of jurisdictions. Business models are adapting to this new environment and energy market structures are evolving to enable successful operations of high renewable energy systems. Markets structures, policies, and technologies that enhance system flexibility for efficient renewable energy integration represent the most promising future area of research in this field.

scholarly journals How to Use Hydrogen in a New Strategy to Mitigate Urban Air Pollution and Preserve Human Health

2020 ◽  
Vol 15 (7) ◽  
pp. 1007-1015
Author(s):  
Louiza Haddad ◽  
Zeroual Aouachria ◽  
Djamel Haddad
Keyword(s):  
Energy Source ◽  
Air Pollution ◽  
Human Health ◽  
Fossil Fuels ◽  
Urban Air Pollution ◽  
Clean Energy ◽  
Transport Systems ◽  
Traffic Density ◽  
Urban Air ◽  
Clean Energy Source

If transport is an essential means for the development of the economy, society and its mobility, it has the drawback of leading to significant atmospheric pollution. As traffic density is very high in large cities, air pollution is amplified by the various means of transport resulting from the combustion of fossil fuels. Urban air pollution is mainly caused by vehicles generating emissions harmful to human health. Our objective of this work is to analyze a strategy to eliminate or reduce the emission of these pollutants (NOx, CO, CO2) during combustion. This strategy aims to explore a clean energy source alternative to fossil fuels. This approach consists of completely replacing the internal combustion scalar with the engine powered by fuel cells using hydrogen. This motivates decision makers to choose hydrogen as an alternative fuel to protect the urban environment and the health human from air pollution. This study shows that it is possible to perfectly mitigate pollutants from urban transport systems by using a PEMFC as an alternative clean energy source. Analyze a strategy to eliminate or reduce the emissions of these pollutants (NOx, CO, CO2) during the combustion of full fossil fuel in vehicle engines. This strategy aims to exploit the energy vector represented by hydrogen in order to save human life in more populated areas and protect the environment. The pressure, temperature and concentration of each species (O2, H2 and H2O) are obtained from the resolution of the electrochemical model coupled to the dynamic model, which we do not present here.

scholarly journals Assessing the Current Status of Renewable Energies and Their Limitations in Iran

2020 ◽  
Vol 9 (1) ◽  
pp. 97-105 ◽  
Author(s):  
Somayeh Pahlavan ◽  
Mehdi Jahangiri ◽  
Akbar Alidadi Shamsabadi ◽  
Alireza Baharizadeh
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Clean Energy ◽  
Renewable Energies ◽  
The Other ◽  
Environmental Damage ◽  
Energy Mix ◽  
Other Hand ◽  
The World ◽  
The One

Innovative and more sustainable methods of supplying energy needs in the world have led to a change in the dependency model for fossil fuels, including more integrated planning and adoption of new and motivating models regarding the use of renewable energy. Today, with the reduction of fossil fuel consumption in the world, the use of renewable energy has gained an important role in the global energy mix, but according to studies, the share of renewable energy in Iran’s energy mix is very small. Therefore, the present paper attempts to present all potentialities for obtaining clean energy in Iran by assessing the current state of renewable energies. The fact that, in the present time, the real value of energy carriers is not appreciated properly in Iran, on the one hand, and the lack of willingness to invest in these energies in the private sector, which may have been less protected, on the other hand, has caused the consumption level of fossil fuels to remain unchanged, which may have some disadvantages, such as environmental damage, in addition to their utilization. The authors of the paper are of the opinion that, on the one hand, by finding solutions for bank investment problems, easing restrictive laws, providing bank with guarantees by investors, as well as modifying parts of the guaranteed electricity purchase contract for accepting foreign banks to provide loans and obtain financing, and on the other hand, by facilitating the process of obtaining land permits and connecting to these power plants, Iran is not far from reaching a reasonable rank in the world.©2020. CBIORE-IJRED. All rights reserved

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