Energy resources of the 21st century: problems and forecasts. Can renewable energy sources replace fossil fuels?

2017 ◽  
Vol 86 (8) ◽  
pp. 777-804 ◽  
Author(s):  
V S Arutyunov ◽  
G V Lisichkin
Keyword(s):  
Renewable Energy ◽  
21St Century ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Resources ◽  
Energy Sources

scholarly journals Chinese experience in implementing renewable energy sources as a possible scenario for the Krasnoyarsk Territory

2020 ◽  
pp. 59-79
Author(s):  
Sergey Nikonorov ◽  
Konstantin Papenov ◽  
Denis Sergeyev
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Energy Resources ◽  
Energy Sources ◽  
Renewable Sources ◽  
Modern Economy ◽  
To Come ◽  
Developing Area

Renewable energy is a rapidly developing area of the modern economy. As many experts forecast, global electricity consumption will double by 2050, while the share of renewable sources in energy generation will be 50%. For most states, the main incentives for the development of renewable energy are the ability to eliminate the consumption of fossil fuels and reduce the level of emissions of pollutants, while ensuring sustainable development of the country. At the same time, Russia, which has significant reserves of natural resources, is in no hurry to switch to the use of energy from renewable sources since it is believed that the country’s subsoil can provide it with cheap energy resources for many generations to come. Therefore, introduction of renewable energy sources that are unable to compete with traditional energy without a developed energy infrastructure and established production is impractical. In our study we try to evaluate the efficiency of the introduction of renewable energy sources in the Krasnoyarsk Territory of Russia using the example of the Chinese experience.

scholarly journals The Need for Efficiency of Energy Sources Management in Sustainable Architecture

2021 ◽  
Vol 10 (1) ◽  
pp. 16-27
Author(s):  
Amirali Razzaghipour
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Renewable Energies ◽  
Energy Resources ◽  
Energy Sources ◽  
Sustainable Architecture ◽  
World Energy ◽  
Energy Dependent

With the industrialization of the world, energy resources need management more than anything else. Because today we live in an energy-dependent world, we need energy to generate heat and cold, to create light, to start car engines, to run factory gears, to harvest crops, and so on. Therefore, the present study aimed to investigate the need for efficiency of energy sources management in sustainable architecture was conducted. In this research, a descriptive-analytical method has been used to look at the concept of energy resources management and sustainable development and their relationship, to study renewable energy sources in Iran and to propose proposed solutions in this regard. The results show that energy management requires the presentation of policies by managers of a country and also requires public education at the community level. Achieving sustainable development also requires access to sustainable energy sources that non-renewable energy and fossil fuels are not suitable sources in this regard due to unsustainability, but renewable energy will remain for future generations if used, unlike fossil fuels. They will not lead to pollution and global warming. Undoubtedly, by replacing renewable energies with non-renewable energies, the steps taken towards sustainable development will become stronger. In addition to these issues, the epidemic and the increase in the number of victims and victims of the Covid-19 virus, which led to the closure of oil fields, refineries, mines, etc., was another blow to the managers and officials of countries to find out more than ever the only solution to these problems is referring to renewable energy.

scholarly journals Energy Dependency and Energy Security: The Role of Energy Effıcıency and Renewable Energy Sources (The Mahbub Ul Haq Memorial Lecture)

2013 ◽  
Vol 52 (4I) ◽  
pp. 309-330 ◽  
Author(s):  
Ilhan Ozturk
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Security ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Resources ◽  
Energy Sources ◽  
Memorial Lecture ◽  
Energy Dependency ◽  
Global Power

National and international energy policies have very important role in regional and global power equilibrium and its importance is increasing. In this respect, diversification of energy resources and their transportations routes, efficient use of local resources and the use of existing energy resources with various technological and strategic practices in the most efficient way possible are necessary in order to improve energy security and reduce dependence on foreign energy sources. Energy efficiency and renewable energy sources stand out as an important issues especially regarding energy supply security, reducing foreign energy dependency, economic development, maintaining the balance between environment and sustainability as well as making important gains in all these issues. Thus, Improving energy efficiency saves money, reduces carbon emissions and decreases country’s dependence on foreign energy supplies. Energy security—the uninterrupted availability of energy sources at an affordable price—can also profit from improved energy efficiency by decreasing the reliance on imported fossil fuels. Possible improvements in energy efficiency are examined in six main categories: (1) buildings, (2) industry, (3) transportation, (4) electricity generation and distribution, (5) appliances and equipment, and (6) lighting

scholarly journals Advanced Energy Resources

2019 ◽  
Vol 9 (2) ◽  
pp. 4317-4319
Keyword(s):  
Renewable Energy ◽  
Nuclear Power ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Resources ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Renewable Sources ◽  
Fundamental Point ◽  
Greenhouse Effects

The consumption of energy increases due to population increased day by day. This is necessarily in each step of life. Energy resources are of two types, one is renewable energy sources and other is non renewable energy sources. But we know that non renewable sources will exhausted. The importance of renewable sources cannot be underestimated. According to utilization of renewable sources , the fundamental point is impact on environment . In this paper we discuss about the some pros and cons of renewable sources and future trends . In recent years, the more prices of fossil fuels and greenhouse effects have built the opportunities in the production of renewable energy resources. Renewable energy is considered a more better source of fuel than nuclear power now a days because they are more safe than non renewable energy sources.

Nigeria: Advancing the Cause of Renewable Energy in Nigeria’s Power Sector Through its Legal Framework

2021 ◽  
Vol 50 (4-5) ◽  
pp. 433-444
Author(s):  
Olusola Joshua Olujobi ◽  
Temilola Olusola-Olujobi
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Legal Framework ◽  
Comparative Approach ◽  
Energy Sources ◽  
Power Sector ◽  
Alternative Source ◽  
Regulatory Policies ◽  
Oil Sector

Fossil fuels have been the mainstream of energy supply and a major source of foreign exchange earnings for the Federal Government of Nigeria, in spite of being an unrenewable and unsustainable source of energy. Nigeria is yet to tap into the full benefits after privatising its power sector, including the new global evolution in the energy sector and the resulting increasing demand for renewable energy sources, which some consider to be cheaper and more environmentally friendly than fossil fuels and their allied products. Energy security is a challenge to socio-economic development in Nigeria, due to the country’s over-dependency on fossil fuels. In terms of their impact and the potentials to preserve energy sources for longevity and sustainability, however, fossil fuels will come to be seen as an out-dated alternative in the power sector as the energy industry evolves. The implications for Nigeria’s oil sector will not be limited to dwindling crude oil prices. The concerns include poor energy utilisation in Nigeria and the need to promote energy efficiency and sustainability. They have led to the formulation of new energy policies around the world to serve as a vehicle for translating solutions into reality. This study has adopted a library-based legal research method with a comparative approach. The study reveals that it is the lack of a coherent legal framework with incentives for using renewable energy that is largely seen as the key issue causing slow uptake of renewable energy as an alternative source of energy in Nigeria. As well as the need for a coherent legal framework on energy and incentives for using renewable energy sources, the study advocates stringent enforcement of existing energy regulatory policies.

scholarly journals Scalable Multiport Converter Structure for Easy Grid Integration of Alternate Energy Sources for Generation of Isolated Voltage Sources for MMC

Electronics ◽  
2021 ◽  
Vol 10 (15) ◽  
pp. 1779
Author(s):  
Syed Rahman ◽  
Irfan Khan ◽  
Khaliqur Rahman ◽  
Sattam Al Otaibi ◽  
Hend I. Alkhammash ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Resources ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Component Level ◽  
Storage Devices ◽  
Multiport Converter ◽  
Detailed Simulation ◽  
The Individual

This paper presents a novel, scalable, and modular multiport power electronic topology for the integration of multiple resources. This converter is not only scalable in terms of the integration of multiple renewable energy resources (RES) and storage devices (SDs) but is also scalable in terms of output ports. Multiple dc outputs of a converter are designed to serve as input to the stacking modules (SMs) of the modular multilevel converter (MMC). The proposed multiport converter is bidirectional in nature and superior in terms of functionality in a way that a modular universal converter is responsible for the integration of multiple RES/SDs and regulates multiple dc output ports for SMs of MMC. All input ports can be easily integrated (and controlled), and output ports also can be controlled independently in response to any load variations. An isolated active half-bridge converter with multiple secondaries acts as a central hub for power processing with multiple renewable energy resources that are integrated at the primary side. To verify the proposed converter, a detailed design of the converter-based system is presented along with the proposed control algorithm for managing power on the individual component level. Additionally, different modes of power management (emulating the availability/variability of renewable energy sources (RES)) are exhibited and analyzed here. Finally, detailed simulation results are presented in detail for the validation of the proposed concepts and design process.

scholarly journals Advances in Underground Energy Storage for Renewable Energy Sources

2021 ◽  
Vol 11 (11) ◽  
pp. 5142
Author(s):  
Javier Menéndez ◽  
Jorge Loredo
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Storage ◽  
Natural Gas ◽  
Greenhouse Gas ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The European Union ◽  
Coal Fuel

The use of fossil fuels (coal, fuel, and natural gas) to generate electricity has been reduced in the European Union during the last few years, involving a significant decrease in greenhouse gas emissions [...]

The Role of Renewable Energy Sources in a Sustainable World

1992 ◽  
Vol 3 (4) ◽  
pp. 430-443 ◽  
Author(s):  
Ruud Pleune
Keyword(s):  
Renewable Energy ◽  
Energy Conservation ◽  
Fossil Fuels ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
World Energy ◽  
World Concept

Present energy use - largely dependent on fossil fuels - is incompatible with the sustainable world concept. In a sustainable world, energy sources are renewable and used in a way that damage to the environment is minimalized. This study investigates the possibility of a sustainable world using renewable energy sources. It appears that - when strict energy conservation is applied - such a sustainable world seems to be attainable. This requires, however, drastic changes in most parts of society.

scholarly journals The Potential of Using Renewable Energy Sources in Poland Taking into Account the Economic and Ecological Conditions

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7525
Author(s):  
Mariusz Niekurzak
Keyword(s):  
Renewable Energy ◽  
Carbon Dioxide Emissions ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Technical Specification ◽  
Economic Benefits ◽  
Environmental Benefits ◽  
Energy Sources ◽  
Renewable Sources ◽  
Starting Point

The aim of the manuscript was to present the collective results of research on the profitability of using various renewable sources in Poland with the greatest development potential. In the paper, the economic parameters of various investment projects were determined and calculated, i.e., Net Capital Value (NPV), Internal Rate of Return (IRR) and the Period of Return on Invested Capital (PBT). The economic assessment of the use of RES technologies was supplemented with the assessment of environmental benefits. The ecological criterion adopted in the study was the assessment of the potential and costs of reducing greenhouse gas emissions as a result of replacing fossil fuels with renewable energy technologies. On the basis of the constructed economic model to assess the profitability of investments, it has been shown that the analyzed projects will start to bring, depending on their type and technical specification, measurable economic benefits in the form of a reduction in the amount of energy purchased on an annual basis and environmental benefits in the form of reduction of carbon dioxide emissions to the atmosphere. Moreover, the calculations show a high potential for the use of certain renewable sources in Poland, which contributes to the fulfillment of energy and emission obligations towards the EU. The analyzes and research of the Polish energy market with the use of the presented models have shown that the project is fully economically justified and will allow investors to make a rational decision on the appropriate selection of a specific renewable energy source for their investment. The presented economic models to assess the profitability of investments in renewable energy sources can be successfully used in other countries and can also be a starting point for a discussion about the direction of energy development. Due to the lack of collective, original and up-to-date research on the domestic market, the manuscript provides the reader with the necessary knowledge regarding the legitimacy of using renewable energy sources, investment and environmental profitability.

scholarly journals Pretreatments of lignocellulosic feedstock for bioethanol production

2010 ◽  
Vol 64 (4) ◽  
pp. 283-293 ◽  
Author(s):  
Zlatica Predojevic
Keyword(s):  
Renewable Energy ◽  
Co2 Emission ◽  
Fossil Fuels ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Bioethanol Production ◽  
Environment Protection ◽  
Lignocellulosic Feedstock ◽  
Lignocellulosic Feedstocks

The use of renewable energy sources (biofuels), either as a component in the conventional fossil fuels, gasoline and diesel, or as a pure biofuel, contributes to energy saving and decrease of total CO2 emission. The use of bioethanol mixed with gasoline significantly decreases gasoline consumption and contributes to environment protection. One of the problems in the production of bioethanol is the availability of sugar and starch based feedstock used for its production. However, lignocellulosic feedstocks are becoming more significant in the production of bioethanol due to their availability and low cost. The aim of this study is to point out the advantages and shortcomings of pretreatment processes and hydrolyses of lignocellulosic feedstocks that precede their fermentation to bioethanol.

Sign in / Sign up

Export Citation Format

Share Document