scholarly journals Modern directions for the development of hydrogen energy technologies

2019 ◽  
Vol 12 (2) ◽  
pp. 89-96
Author(s):  
A. A. Filimonova ◽  
A. A. Chichirov ◽  
N. D. Chichirova ◽  
A. G. Filimonov ◽  
V. V. Kulichikhin
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Global Strategy ◽  
Energy Carrier ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Environment Friendly ◽  
Secondary Energy ◽  
Energy Technologies

Hydrogen energy combines a set of technologies for the production, transportation, storage and use of a versatile secondary energy carrier — hydrogen. The energy use of hydrogen is formed from the possibilities of environmentfriendly generation of electricity and long-term storage without loss, including on a large scale. Questions related to the consumption of hydrogen as a promising environment-friendly and versatile energy carrier and energy storage in various sectors of the national economy were formulated in the early 70s of the last century after the first oil fuel crisis. It has become obvious that it is necessary to develop new, ecologically optimal energy technologies based on the use of renewable energy sources, nuclear energy, coal and versatile environment-friendly energy carriers, making it possible to replace non-renewable energy resources as these are depleted and become more expensive. Hydrogen as a secondary energy carrier reveals its potential in a global strategy for sustainable energy development in the 21st century, which confronts the challenges of irreversible climate change, unsustainable oil production and increasing environmental pollution. Hydrogen can play a key role in mainline transportation by road and rail, in coastal and international shipping, in air transport, as well as in long-term and seasonal storage of electricity in networks, relying mainly on local renewable energy sources and local raw materials. The decisive element in the commercialization of hydrogen fuel technologies in Russia at the current stage is the formation of cost-effective hydrogen-transport-energy complexes, in particular, within power generating facilities.

scholarly journals Estimating of the size of subsides for the use of hydrogen energy technologies for potential consumers

2021 ◽  
Vol 289 ◽  
pp. 01005
Author(s):  
A.S. Grachev
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Energy Technologies ◽  
Electrical Part ◽  
Hydrogen Technologies

This article discusses the prospects for the use of hydrogen technologies in conjunction with renewable energy sources. A sim plified model of the power system of an isolated consumer using hydrogen technologies has been compiled. An experimental calculation of the electrical part of the system has been carried out. Based on the results obtained, conclusions are drawn about the further improvement of this model.

An overview of alternative and renewable energy governance, barriers, and opportunities in Pakistan

2017 ◽  
Vol 29 (2) ◽  
pp. 184-203 ◽  
Author(s):  
Mabroor Hassan ◽  
Manzoor K Afridi ◽  
Muhammad I Khan
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Energy Technologies ◽  
Energy Scenario ◽  
Energy Governance ◽  
Barriers And Opportunities ◽  
Current Energy

High demand of energy for increasing economic growth, inadequate resources, pollution from power generation, inconsistent oil prices, and fickle supplies have triggered governments to develop long-term and secure energy sources. Alternative and renewable energy sources are an anticipation of securing long term, clean, and sustainable future of energy. This paper presents the current energy scenario of Pakistan, the share of renewables, analysis of alternative and renewable energy governance, barriers and opportunities for Pakistan in adopting alternative and renewable energy. It highlights development potential for alternative and renewable energy and issues related to energy governance to achieve the target of 5% share in the energy mix by 2030. The results indicated substantial gaps in alternative and renewable energy policy which is likely to freak the benefits of opportunities and government targets. The findings of this article identified the lack of mechanism to cooperate, poor integration of alternative and renewable energy technologies, underprivileged domestic manufacturing, no portfolio standards for bioenergy, and the dearth of research and development. Additionally, the study had furnished the barriers and opportunities in detail for endowment of alternative and renewable energy resources to assure sustainable energy security of Pakistan.

Power Projects and Covid-19: A Practical Analysis of the Relevance of Force Majeure Clauses under the Standardised Power Purchase and Implementation Agreements of Uganda

2020 ◽  
Vol 1 (2) ◽  
pp. 189-193
Author(s):  
Aisha Naiga ◽  
Loyola Rwabose Karobwa
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Clean Energy ◽  
The State ◽  
Energy Sources ◽  
Policy Goals ◽  
Force Majeure ◽  
Practical Analysis ◽  
Energy Justice

Over 90% of Uganda's power is generated from renewable sources. Standardised Implementation Agreements and Power Purchase Agreements create a long-term relationship between Generating Companies and the state-owned off-taker guaranteed by Government. The COVID-19 pandemic and measures to curb the spread of the virus have triggered the scrutiny and application of force majeure (FM) clauses in these agreements. This article reviews the FM clauses and considers their relevance. The authors submit that FM clauses are a useful commercial tool for achieving energy justice by ensuring the continuity of the project, despite the dire effects of the pandemic. Proposals are made for practical considerations for a post-COVID-19 future which provides the continued pursuit of policy goals of promoting renewable energy sources and increasing access to clean energy, thus accelerating just energy transitions.

scholarly journals Influence of the Share of Renewable Energy Sources on the Level of Energy Security in EECCA Countries

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 903 ◽  
Author(s):  
Ivan Trifonov ◽  
Dmitry Trukhan ◽  
Yury Koshlich ◽  
Valeriy Prasolov ◽  
Beata Ślusarczyk
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Structural Characteristics ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Energy Sources ◽  
Structural Content ◽  
High Degree

In this study we aimed to determine the extent to which changes in the share of renewable energy sources, their structural complex, and the level of energy security in Eastern Europe, Caucasus and Central Asia (EECCA) countries in the medium- and long-term are interconnected. The study was performed through modeling and determination of the structural characteristics of energy security in the countries. The methodology of the approach to modeling was based on solving the problem of nonlinear optimization by selecting a certain scenario. For the study, the data of EECCA countries were used. The ability of EECCA countries to benefit from long-term indirect and induced advantages of the transformation period depends on the extent to which their domestic supply chains facilitate the deployment of energy transformation and induced economic activity. This study provides an opportunity to assess the degree of influence of renewable energy sources on the level of energy security of countries in the context of energy resource diversification. The high degree of influence of renewable energy sources on energy security in the EECCA countries has been proven in the implementation of the developed scenarios for its increase. Energy security is growing. At the same time, its level depends not only on an increase in the share of renewable sources but also on the structure of energy resources complex of countries, and the development of various renewable energy sources. Therefore, today the EECCA countries are forced not only to increase the share of renewable energy sources but also to attach strategic importance to the structural content of their energy complex.

scholarly journals Multi-Criteria Decision-Making (MCDM) for the Assessment of Renewable Energy Technologies in a Household: A Review

Energies ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1164 ◽  
Author(s):  
Indre Siksnelyte-Butkiene ◽  
Edmundas Kazimieras Zavadskas ◽  
Dalia Streimikiene
Keyword(s):  
Decision Making ◽  
Renewable Energy ◽  
Scientific Literature ◽  
Renewable Energy Sources ◽  
Multiple Criteria Decision Making ◽  
Energy Sources ◽  
Renewable Energy Technologies ◽  
Advantages And Disadvantages ◽  
Energy Technologies ◽  
Depth Analysis

Different power generation technologies have different advantages and disadvantages. However, if compared to traditional energy sources, renewable energy sources provide a possibility to solve the climate change and economic decarbonization issues that are so relevant today. Therefore, the analysis and evaluation of renewable energy technologies has been receiving increasing attention in the politics of different countries and the scientific literature. The household sector consumes almost one third of all energy produced, thus studies on the evaluation of renewable energy production technologies in households are very important. This article reviews the scientific literature that have used multiple-criteria decision-making (MCDM) methods as a key tool to evaluate renewable energy technologies in households. The findings of the conducted research are categorized according to the objectives pursued and the criteria on which the evaluation was based are discussed. The article also provides an overview and in-depth analysis of MCDM methods and distinguishes the main advantages and disadvantages of using them to evaluate technologies in households.

scholarly journals Assessing the benefits of capacity payment, feed‐in‐tariff and time‐of‐use programme on long‐term renewable energy sources integration

2019 ◽  
Vol 2 (4) ◽  
pp. 602-611 ◽  
Author(s):  
Mohammad Sadegh Javadi ◽  
Ali Esmaeel Nezhad ◽  
Miadreza Shafie‐khah ◽  
Pierluigi Siano ◽  
João P.S. Catalão
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Feed In Tariff

scholarly journals New Energy Technologies: Microalgae, Photolysis and Airborne Wind Turbines

Sci ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 43 ◽  
Author(s):  
Patrick Moriarty ◽  
Damon Honnery
Keyword(s):  
Renewable Energy ◽  
Wind Turbines ◽  
Large Scale ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Extreme Weather Events ◽  
Energy Sources ◽  
Energy Technologies ◽  
New Energy ◽  
Near Term

Because of the near-term risk of extreme weather events and other adverse consequences from climate change, and, at least in the longer term, global fossil fuel depletion, there is world-wide interest in shifting to noncarbon energy sources, especially renewable energy (RE). Because of possible limitations on conventional renewable energy sources, researchers have looked for ways of overcoming these shortcomings by introducing radically new energy technologies. The largest RE source today is bioenergy, while solar energy and wind energy are regarded as having the largest technical potential. This paper reviews the literature on proposed new technologies for each of these three RE sources: microalgae for bioenergy, photolysis and airborne wind turbines. The main finding is that their proponents have underestimated the difficulties facing their introduction on a very large scale.

scholarly journals Regimes, management and economics of energy complexes on the basis of renewable energy sources for autonomous power supply

2019 ◽  
Vol 124 ◽  
pp. 04023 ◽  
Author(s):  
V. Elistratov ◽  
I. Kudryasheva
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Energy Security ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity Supply ◽  
Fuel Prices ◽  
Decentralized Power Supply

The article describes the principles of creation, management and economics of power complexes based on renewable energy sources for decentralized power supply. The introduction of energy complexes based on renewable energy sources can compete with the centralized power supply of the regions by increasing energy security and reducing the risks of major accidents and disasters. Long-term contracts for the electricity supply can be a reliable and economical insurance in case of rising fuel prices in the long term.

The Use of Renewable Energies for Nigerian Agriculture: Progress, Prospects and Problems

1998 ◽  
Vol 27 (2) ◽  
pp. 129-132
Author(s):  
Bobboi Umar
Keyword(s):  
Renewable Energy ◽  
Rural Development ◽  
Agricultural Production ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Renewable Energies ◽  
Energy Sources ◽  
Renewable Energy Technologies ◽  
Energy Technologies ◽  
Positive Results

Renewable energies have great potential to improve agricultural activities and rural development. Positive results are already being achieved with these relatively benign energies in many countries. In Nigeria, there is need to improve agricultural production for the increasing population and to conserve the fossil fuel reserves. Although renewable energy sources such as solar radiation and biomass are abundant, harnessing them for agricultural and rural development needs is very slow. This article extols the virtues of these energy sources, analyses the progress made so far in renewable energy technologies in Nigeria, identifies the major obstacles and suggests some solutions to overcome them.

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