scholarly journals Policy Makers’ Perspectives on the Expansion of Renewable Energy Sources in Chile’s Electricity Auctions

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4149 ◽  
Author(s):  
Shahriyar Nasirov ◽  
Eugenio Cruz ◽  
Claudio A. Agostini ◽  
Carlos Silva
Keyword(s):  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Multicriteria Decision Making ◽  
Significant Rise ◽  
Auction Design ◽  
Contract Duration ◽  
Electricity Auctions ◽  
The World ◽  
Project Construction ◽  
Decision Making Model

Chile has become one of the first few countries where renewable sources compete directly with conventional generation in price-based auctions. Moreover, the results of energy auctions during the last few years show a remarkable transition from conventional fossil fuels to renewable energies. In fact, the energy auction in 2017, to provide energy to customers from distribution companies, achieved a massive expansion in renewable technology at one of the lowest prices in the world. These positive results prompted the question if such results were permanent or temporal due to factors with limited effects. In this regard, this paper studies the key factors that drove the significant rise of renewable technologies in Chilean energy auctions, obtaining valuable lessons for regulators, not only in Chile, but also in the region and the world. For this purpose, we considered a well-proven method based on a hybrid multicriteria decision-making model to examine and prioritize the main drivers of the expansion of renewables in auctions. The results showed that some specific characteristics of the auction design, particularly the hourly supply blocks, the lead time for project construction, and contract duration, were the most significant drivers for the expansion of renewables in energy auctions. Moreover, the results showed that, provided that the auction design accommodates for such drivers, solar energy ends up as the most attractive technology in the Chilean auctions. The research also shows the main findings are robust by the application of a probabilistic sensitivity analysis.

Energy and Energy Efficiency

2010 ◽  
pp. 1-9
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Nuclear Waste ◽  
Nuclear Power ◽  
Fossil Fuels ◽  
18Th Century ◽  
Renewable Energy Sources ◽  
Nuclear Power Engineering ◽  
Energy Sources ◽  
The World

Originally, coal was the main source of energy. It remains so throughout the 18th century during the period of the rapid industry development. Later on, oil and naphtha began to be used as energy sources and their usage expanded especially in 19th century. A special feature of the above mentioned fossil fuels is their long creation period – requiring millennia. They are a result of rotting of different plant and animal kinds. In comparison to the period of their formation, the period of their utilization is far shorter. In accordance with a number of existing statistics about 2050 year it may be talked about a depletion of the liquid fossil fuels, also, the world coal supplies are considered to last within the next 200 years. Therefore, the development of nuclear power engineering is considered to be one of the alternatives to generate energy. Recently, the nuclear power energy generation has been denied in many countries because of the risks associated with its generation and because these risks have been confirmed by serious accidents throughout the World. The storage of worked nuclear waste is also a problem and risky. The renewable energy sources are another possibility to generate energy.

scholarly journals TENDENCY OF GLOBAL CAPACITY DEVELOPMENT OF RENEWABLE ENERGY SOURCES IN THE WORLD IN THE LAST TEN YEARS

2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Isak Karabegović
Keyword(s):  
Climate Change ◽  
Renewable Energy ◽  
Energy Production ◽  
Fossil Fuels ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Low Carbon ◽  
Small Hydropower ◽  
The World

It is well-known that, in the past decades, the burning of fossil fuels was identified as the major cause of climate change. Climate change mitigation is becoming a central concern of global society. Limiting global warming to below 2 °C above the temperature of the pre-industrial period is the key to preserving global ecosystems and providing a secure basis for human activities, as well as reducing excessive environmental change. The ambitions increased at an accelerated pace with a dramatic expansion of net zero-emission targets. Increasing pressure from citizens and society has forced countries to intensify their climate plans, while the private sector has bought a record amount of renewable energy. An energy system based on fossil fuels must be replaced by renewable energy with low carbon emissions with improved energy efficiency. That applies to all consumers of fossil energy: cities, villages, building sectors, industry, transport, agriculture, and forestry. The paper explores and presents the strategy of energy development of renewable energy sources in the world. The application of new technologies that have led to developing renewable energy sources is presented in detail: wind energy, solar energy, small hydropower plants, biomass, and their increase in the total share of energy production, i.e., reduced fossil fuel use in energy production. Investments in new technologies used in renewable energy sources have led to increases in employment worldwide. Analysis of the trend of increased energy production from RES (Renewable Energy Sources) with investment plans, the employment rate for each energy source, and the development of renewable energy sources in the coming period are provided.

scholarly journals A Review of Tidal Power Potential in Kenya

2021 ◽  
Vol 1 (2) ◽  
pp. 1-4
Author(s):  
Aron Oronyi Ohuru
Keyword(s):  
Wind Power ◽  
Large Scale ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Tidal Energy ◽  
Scale Production ◽  
Tidal Power ◽  
Hydro Power ◽  
Market Prices ◽  
The World

The world is experiencing a dynamic shift in terms of energy production, with nations focusing more on renewable sources of energy. This is because renewable energy sources are eco-friendly, reserves of fossil fuels around the world are getting depleted, and unstable market prices of these fossil fuels. Here in Kenya, the revolution has been felt, especially with heavy investment in geothermal and wind power. Since hydroelectric, geothermal and wind power account for more than 70% of energy consumption in Kenya, it is evident that Kenya is taking strides in the correct direction. However, tidal energy is still left behind in this foray, despite its large potential due to the presence of Kenya’s coastline measuring 640 km long, and most notably, the predictability of this tidal energy. Due to the fact that tidal energy is directly related to the gravitational relationship between the earth and the moon, which is predictable, tidal energy can really help in terms of reduction of pressure and dependence on the hydro power generating seven forks scheme in Kenya. If well synchronized, tidal energy can help alleviate the chronic power rationing that occurs during the dry season in Kenya. By studying work done in other countries, large scale production of electric power from tidal energy can be achieved.

scholarly journals USING GIS AND PHOTOGRAMMETRY FOR ASSESSING SOLAR PHOTOVOLTAIC POTENTIAL ON FLAT ROOFS IN URBAN AREA CASE OF THE CITY OF BEN GUERIR / MOROCCO

2019 ◽  
Vol XLII-4/W12 ◽  
pp. 155-166
Author(s):  
H. Saadaoui ◽  
A. Ghennioui ◽  
B. Ikken ◽  
H. Rhinane ◽  
M. Maanan
Keyword(s):  
Urban Area ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Solar Irradiation ◽  
Initial Assessment ◽  
Management Decision ◽  
Energy Needs ◽  
The World ◽  
The City ◽  
Flat Roofs

<p><strong>Abstract.</strong> Renewable energy sources are at the forefront of political discussions around the world because of the scarcity of fossil fuels and climate change caused by the accumulation of greenhouse gases. By 2030, Morocco will cover 52% of these energy needs through renewable energies, in order to preserve the environment (COP 22). This paper aims to estimate the potential of photovoltaic solar energy from flat roofs in the city of Ben Guerir, Morocco using remote sensing and GIS data. To achieve this goal, vector orthophoto resulting from the photogrammetric restitution acquired in 2015 were used to generate a 3D model (DSM). The annual solar irradiation is calculated by the analyser of the solar tool. Each roof is calculated based on algorithms for the most common solar panel technologies (mono-si and poly-si). The applicability of this methodology has been demonstrated in the urban area of Benguerir, Morocco, and can be widespread in any other region of the world. The results obtained for a total roofing surface of 135&amp;thinsp;Ha, i.e. more than 345&amp;thinsp;Gwh of electricity annually generate. For an average roof of 60&amp;thinsp;m<sup>2</sup> that could supply 5 to 6 households; A planned investment between 118,218 and 167,296&amp;thinsp;DH, and an annual maintenance charge of 2%. This study may be an initial assessment of solar potential in the city, which can be used to support the management decision regarding investment in the urban solar system.</p>

scholarly journals RENEWABLE ENERGY: WORLD DEVELOPMENT TRENDS AND UKRAINE

2021 ◽  
Author(s):  
Vita Zaharii ◽  
Tamila Kovalchuk
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Energy Sources ◽  
The Sun ◽  
Stage Of Development ◽  
Positive Tendency ◽  
The World

The article considers the trends in the development of renewable energy in the world and in Ukraine. It is proved that renewable energy is an important and promising energy sector in the world. It is shown that at the present stage of development, all civilized countries are developing their economies through the use of renewable energy sources, which are gradually displacing the old power plants using exhaustive fossil fuels, which pollute the atmosphere. The history of renewable energy development is revealed. The investment attractiveness of this energy sector in the countries of the world is characterized. On the basis of statistical data and preliminary studies of scientists, modern structural changes in the investment market of renewable energy in the world were evaluated. It is shown that Ukraine is part of European dozens of investments in green energy. The volume of supply of primary energy in the world and Europe, the power of renewable energy in leaders, regions of the world and Ukraine is presented. A review of the current state of renewable energy in developed countries and Ukraine has been carried out. Quantitative characteristics for different renewable energy sectors are analyzed: hydro, solar and wind power and other. Examples of the largest solar, hydroelectric power plants on the planet and Ukraine are given. It is shown that in the countries of the world and Ukraine there is a powerful potential and there is a positive tendency to more intensive use of renewable energy sources. It has been found that in 2020, for the first time in history, the share of RES in the structure of electricity in Europe has exceeded the proportion of fossil fuels due to the expansion of energy from the sun and the sun. The development of renewable energy in the planet also promotes the introduction in many countries and in Ukraine "Green Tariffs" and "Green" for electricity. It is positive that Ukraine has joined the European Energy Community and undertaken a joint regulatory policy with EU countries, develop and implement measures for renewable energy in the country. The prospects for the development of renewable energy sources in the countries of the world and Ukraine are determined.

scholarly journals Renewable Energy Startups and SME

2020 ◽  
Author(s):  
Roshani Goel
Keyword(s):  
Renewable Energy ◽  
Paradigm Shift ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Energy Capacity ◽  
Energy Needs ◽  
The World ◽  
Growing Economy

India&rsquo;s energy needs are in demand with the increase in energy and other electric uses which is highest among the world. There are sectors which heavily rely on energy generated by fossil fuels but there is also seen a paradigm shift towards renewable energy sources. If India continues to rely on the former then they end up blocking development in energy system meeting uncertainties and face difficulties in supply of fossil fuels. To meet the fast-growing economy, India needs to supply the energy 3-4 times more of what they are supplying now. Government of India has become aware of the situation and has started facilitating polices in action towards a sustainable energy. As of 2019, India&rsquo;s on grid renewable energy capacity is 85.9 GW. Government is working to establish 500 GW of renewable energy source by 2030.

CUSTOMER EMPOWERMENT STRATEGY AND SHAPING MARKETS IN THE PRODUCTION OF ELECTRICITY

2019 ◽  
Vol 68 (1) ◽  
pp. 22-31
Author(s):  
Ivan Krnić
Keyword(s):  
Renewable Energy ◽  
Carbon Dioxide Emissions ◽  
Power Plants ◽  
Fossil Fuels ◽  
Credit Rating ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Energy Prices ◽  
The World ◽  
Energy Companies

A large number of energy companies in the world today a faced with global transformative trends which devastatingly affect their business results. Therefore, energy companies in the world were very slow in investing and adopting renewable energy sources and become significantly overcapacitated by coal and gas fired power plants which are now unprofitabile due to low marginal costs of renewables and their priority dispatching into a power system. Also increasing the share of renewable energy sources in the structure of electricity generation, the decline in primary energy prices (fossil fuels) the stagnation of consuption and the surplus of supply in relation to electricity demand caused a drop in wholesale electricity prices by half compared to 2008. Furthemore, the operation of coal fired power plants is burdened with carbon dioxide emissions. As a result, there has been a significant reduction in revenues, falling stock values andthe collapse of credit rating of many energy companies in the world. This article analyzes the implementation of the strategy of empowering customers and shaping markets that the E.ON Group has carried out as a „response“ to global transformative trends in the energy market environment by which the former company was divided into two less dynamic and more focused companies into a new or conventional energy world. This strengthens the competitiveness of all previous business activities due to stronger focus on the development of necessary skills and process. Furthemore, from on investor perspective it has been shown that the risk profiles associated with conventional energy production differ from those related to the „new“ energy world, ie the activities covered by the business portfolio of the E.ON Group, and the activities covered by the business portfolio of the Uniper Group attract different types of investors.

scholarly journals Distributed Generation from Renewable Energy Sources: Ending Energy Poverty Across the World

2020 ◽  
Author(s):  
Mario Pagliaro ◽  
Francesco Meneguzzo
Keyword(s):  
Renewable Energy ◽  
Distributed Generation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Developed Countries ◽  
Energy Sources ◽  
Energy Poverty ◽  
Policy Makers ◽  
The World ◽  
Systems View

Following an updated outlook of global energy production and utilization, we show through selected examples from both developing and developed countries how distributed generation from renewable energy sources, and from solar energy in particular, is the key solution to ending energy poverty across the world. Guidelines aimed at policy makers suggest a systems view of energy that will be instrumental in guiding the transition from fossil fuels to combustion-free renewable energy for all energy end uses.

Comparing the generation of electricity from renewable and non-renewable energy sources in Iran and the world: now and future

2015 ◽  
Vol 12 (6) ◽  
pp. 627-638 ◽  
Author(s):  
Mirhabibi Mohsen ◽  
Askari Mohammad Bagher ◽  
Bahrampour Mohammad Reza ◽  
Mirzaei Mahmoud abadi Vahid ◽  
Tikdari Mahdi
Keyword(s):  
Public Health ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Renewable Energies ◽  
Energy Sources ◽  
Environment And Public Health ◽  
The World ◽  
The Cost ◽  
Lut Desert

Regarding the renewable energies, the cost of producing electricity and the remaining reserves from fossil fuels in Iran is compared with the same in other countries. Several advantages of renewable energies are studied in the present research with emphasis on solar energy; the Lut desert in Iran is introduced as a high potential for supplying the country’s energy. Various effects of such generation of energy on economy, environment, and public health are also studied.

ANALYSIS OF WAYS FOR ACHIEVING 100% RENEWABLE ENERGY IN DIFFERENT COUNTRIES OF THE WORLD (REVIEW)

2020 ◽  
Vol 42 (4) ◽  
pp. 67-73
Author(s):  
T.A. Zheliezna
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Action Plan ◽  
Renewable Energy Sources ◽  
Energy Transition ◽  
The United States ◽  
Green Energy ◽  
Renewable Electricity ◽  
The World ◽  
The Cost

The aim of the work is to analyze targets on the transition to 100% renewable energy sources (RES) existing in different countries of the world as well as strategies for their achievement. The task of the work is to identify the most promising directions and develop appropriate recommendations for Ukraine. The global trend is setting targets for the transition to 100% RES, at least in some energy sectors, developing appropriate strategies and their implementation. Over the last decade, the cost of renewable energy has been steadily declining, making RES more competitive with fossil fuels in many parts of the world. Today, more than 50 countries, hundreds of cities and regions in one form or another have committed to switching to 100% RES. Most often it is about achieving 100% of renewable electricity. So far, at least 52 cities and regions have achieved their targets for the transition to 100% RES. Of these, 41 are located in Europe and 9 are located in the United States. About 2/3 of these targets relate only to renewable electricity. In Ukraine, the official targets for the development of RES are set out in the National Renewable Energy Action Plan until 2020 and in the Energy Strategy of Ukraine until 2035. Recently, a draft Concept of the “green” energy transition of Ukraine until 2050 was developed, which sets the goal of achieving a climate-neutral economy by 2070. One of the main directions of decarbonization of the economy is the development of RES in combination with increasing energy efficiency and energy saving. It is necessary to resume completing the document with the inclusion of reasonable long-term goals to achieve 100% RES in certain energy sectors and in the whole energy balance of Ukraine.

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