scholarly journals Long-Term Projection of Renewable Energy Technology Diffusion

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4261 ◽  
Author(s):  
Tadeusz Skoczkowski ◽  
Sławomir Bielecki ◽  
Joanna Wojtyńska
Keyword(s):  
Renewable Energy ◽  
Technology Diffusion ◽  
Renewable Energy Sources ◽  
Unit Cost ◽  
Learning Curves ◽  
Novel Technologies ◽  
The Future ◽  
Term Energy ◽  
The Eu

The EU aims at increasing the use of renewable energy sources (RES), mainly solar-photovoltaic (PV) and wind technologies. Projecting the future, in this respect, requires a long-term energy modeling which includes a rate of diffusion of novel technologies into the market and the prediction of their costs. The aim of this article has been to project the pace at which RES technologies diffused in the past or may diffuse in the future across the power sector. This analysis of the dynamics of technologies historically as well as in modeling, roadmaps and scenarios consists in a consistent analysis of the main parameters of the dynamics (pace of diffusion and extent of diffusion in particular markets). Some scenarios (REMIND, WITCH, WEO, PRIMES) of the development of the selected power generation technologies in the EU till 2050 are compared. Depending on the data available, the learning curves describing the expected development of PV and wind technologies till 2100 have been modeled. The learning curves have been presented as a unit cost of the power versus cumulative installed capacity (market size). As the production capacity increases, the cost per unit is reduced thanks to learning how to streamline the manufacturing process. Complimentary to these learning curves, logistic S-shape functions have been used to describe technology diffusion. PV and wind generation technologies for the EU have been estimated in time domain till 2100. The doubts whether learning curves are a proper method of representing technological change due to various uncertainties have been discussed. A critical analysis of effects of the commonly applied models for a long-term energy projection (REMIND, WITCH) use has been conducted. It has been observed that for the EU the analyzed models, despite differences in the target saturation levels, predict stagnation in the development of PV and wind technologies from around 2040. Key results of the analysis are new insights into the plausibility of future deployment scenarios in different sectors, informed by the analysis of historical dynamics of technology diffusion, using to the extent possible consistent metrics.

scholarly journals Study on the production and use of biomass energy in the Timis County

2021 ◽  
Vol 26 (2) ◽  
pp. 2434-2440
Author(s):  
CRISTINA BACĂU ◽  
◽  
NICOLETA MATEOC-SÎRB ◽  
RAMONA CIOLAC ◽  
TEODOR MATEOC ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Nuclear Energy ◽  
Renewable Energy Sources ◽  
Biomass Energy ◽  
Renewable Energy Resources ◽  
Continuous Increase ◽  
Fossil Energy ◽  
Term Energy

The use of renewable energy resources is gaining more and more ground, thanks to the continuous increase in the price of fossil energy and the decrease in stocks, and the management of waste from nuclear energy production, respectively. The implementation of an energy strategy to harness the potential of renewable energy sources (RES) is part of the coordinates of Romania’s medium – and long-term energy development and provides the appropriate framework for the making of decisions on energy alternatives and the inclusion in the Community acquis in the field. In this respect, a study on the biomass potential of Timiş County and on the possibilities of producing unconventional energy from biomass has been carried out. The study is based on research, data collection from the literature, as well as from official documents or official websites, the processing and interpretation of the data and their quantitative and qualitative analysis. It was concluded that biomass is a promising renewable energy source for Romania, both in terms of potential and in terms of usability.

An Analytical Model for Evaluating Wind Turbine Types

2014 ◽  
Vol 543-547 ◽  
pp. 333-336 ◽  
Author(s):  
Amy H.I. Lee ◽  
Meng Chan Hung ◽  
W.L. Pearn ◽  
He Yau Kang
Keyword(s):  
Decision Making ◽  
Renewable Energy ◽  
Evaluation Model ◽  
Renewable Energy Sources ◽  
Multiple Criteria Decision Making ◽  
Analytic Network Process ◽  
Renewable Energy Resources ◽  
Network Process ◽  
Term Energy

With worldwide developments stressing the security, economy, human well-beings and environmental costs of relying heavily on fossil and nuclear energy, the demand of safe renewable energy resources is expanding consistently and tremendously in recent years. With its safe and environmental characteristics, wind energy production has become one of the fastest growing renewable energy sources in the world. While new wind power capacity is being added in more places in various countries, the installation of wind turbines is an important process for long-term energy generation. In this study, an evaluation model, which incorporates multiple criteria decision making (MCDM) methods, including decision making trial and evaluation laboratory (DEMATEL) and fuzzy analytic network process (FANP), is developed to establish interactive relationships between criteria. Fuzzy Yager ranking method is used for deffuzification. The final ranking of the alternatives is obtained, and this can provide decision-makers for references.

scholarly journals Consumer habits and preferences in the renewable energy market

2019 ◽  
Author(s):  
Attila Bai ◽  
Péter Balogh ◽  
Károly Pető ◽  
Zoltán Szakály
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Renewable Energy Sources ◽  
High Rate ◽  
Energy Sources ◽  
Income Status ◽  
World Energy ◽  
The World ◽  
The Future ◽  
The Eu

The world energy consumption was about 567-578 EJ in 2017 which is still increasing – in 2017 by 2.2%, and yearly by 1.7% on average since 2006 (BP, 2018, IEA, 2018). Within this, the consumption of residential segment plays a significant role both in the EU (42%) and in Hungary (35%) as well (Eurostat, 2019). The Hungarian population spend 12.8% (35 EUR/capita/month) of their income on energy sources, and this rate is even higher in case of the pensioners, singles and those who have lower income (KSH, 2019). At the same time, the rate of renewables in the energy mix stagnates for years worldwide (14%), it is a bit higher in the EU and in Hungary than the world average (18-18%, IEA, 2018). Thus, the renewable energy sources can also have serious perspectives in the residential cost reduction, in the sustainable energy consumption and in the local income production. Our aim is to analyse the knowledge of Hungarian consumers on renewable energy sources, their willingness to apply them and the socio-demographic factors on these. To execute the research objectives, a national representative survey with 1000 people was started in April 2019 in Hungary. Based on the results of the questionnaire, it was concluded that the information of the inhabitants is below the average in case of every examined renewable energy source, which is especially true for the biomass-based energy sources. The ease is almost as important as the environment friendliness. An excessively high rate of respondents (34 and 27%) is interested in solar panels and solar collectors, 32% of them seclude themselves from the use of these energy sources. It would be justified to extend these consumer researches in the future for more countries. The authors wish to clarify how the differences in location, income status and residential segment and values influence the spread of these energy sources in the EU and by which tools could support the usage of these in the future. Acknowledgment This research was supported by EFOP-3.6.1-16-2016-00022 „Debrecen Venture Catapult Program”. The research was financed by the Higher Education Institutional Excellence Programme (20428-3/2018/FEKUTSTRAT) of the Ministry of Human Capacities in Hungary, within the framework of the 4.thematic programme of the University of Debrecen.   References BP (British Petrol, 2018): Statistical Review of World Energy. 67th edition, pp. 1-52Eurostat (2019): https://ec.europa.eu/eurostat/statistics-explained/index.php/Renewable_energy_statisticsInternational Energy Agency (IEA, 2018): Key World Energy Statistics. www.iea. org/statistics, pp. 1-51KSH (Hungarian Central Statistic Agency, 2019). http://www.ksh.hu/thm/3/indi3_1_2.html

scholarly journals Current and future role of Haber–Bosch ammonia in a carbon-free energy landscape

2020 ◽  
Vol 13 (2) ◽  
pp. 331-344 ◽  
Author(s):  
Collin Smith ◽  
Alfred K. Hill ◽  
Laura Torrente-Murciano
Keyword(s):  
Free Energy ◽  
Renewable Energy ◽  
Energy Storage ◽  
Energy Landscape ◽  
Free Energy Landscape ◽  
Future Role ◽  
The Future ◽  
Term Energy

The future of green ammonia as long-term energy storage relies on the replacement of the conventional CO2 intensive methane-fed Haber–Bosch process by distributed and agile ones aligned to the geographically isolated and intermittent renewable energy.

GEOPOLITICAL RELATIONS WITH OIL AT THE TIME OF COVID-19: WITHOUT OIL THERE IS NO PRESENT, WITHOUT GREEN ENERGY THERE IS NO FUTURE

2021 ◽  
Author(s):  
Jasenka Bubić ◽  
Luka Bašić
Keyword(s):  
Renewable Energy ◽  
Oil And Gas ◽  
Developing Economies ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Social Utility ◽  
Energy Sources ◽  
The Future ◽  
Insight Into

Oil drives the entire world economy, and it is entirely a geostrategy issue. The strong development of the economy over the past few decades has provided a global stage for those countries that have a stable political establishment while managing enormous amounts of oil. Now, year after year, it is becoming increasingly clear that the importance of oil and gas is falling away, and it is those energy sources that bring about a reduction in the half-life that comes into the scene. Oil and gas are non-renewable energy sources and as such are naturally limited, therefore their reserve will become economically unprofitable in the future, and exploitation will reach its natural end. The aim of this research paper is divided into two structures: the first thesis concerns giving a fresh insight into the state of the oil market from the beginning of the pandemic to the present day. The issue of geopolitical relations between Riyadh and Moscow is to be addressed here and how much of a negative consequence the price war has left on their fiscal calculations, although geopolitical friction has deepened the shock further into financial markets. Thus, the fiscal calculation of both countries suffered revenue shocks, but it also prompted an even deeper decline in stock indexes and temporary stagflation of the global economy. The second thesis refers to a brief review of the analysis of the long-term future of non-renewable and renewable energy sources. The future of cleaner forms of energy is imperative, but also a challenging task, as this means shifting the entire structure of national economies to green and renewable. The focus is on giving insight into why this is a necessity, but also why there could be a dangerous precedent and negative cash flows in some structures of the economy. Currently, and any future planning and fulfillment of climate guidelines, must not lead to an increase in energy poverty and consequently a decrease in living standards, because in all geopolitical games the line is always drawn between rich and poor countries, that is, advanced economies and developing economies. Therefore, the long-term and global leaders in green and renewable energy sources will be those countries that successfully implement public interests in these projects, because only in this way can the goal be met – shifting a certain structure of the economy to cleaner sources while satisfying social utility and increasing employment.

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 Changes in Energy Consumption in Agriculture in the EU Countries

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1570
Author(s):  
Tomasz Rokicki ◽  
Aleksandra Perkowska ◽  
Bogdan Klepacki ◽  
Piotr Bórawski ◽  
Aneta Bełdycka-Bórawska ◽  
...  
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Correlation Coefficient ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
The European Union ◽  
Eu Countries ◽  
Research Hypothesis ◽  
The Eu

The paper’s main purpose was to identify and present the current situation and changes in energy consumption in agriculture in the European Union (EU) countries. The specific objectives were the determination of the degree of concentration of energy consumption in agriculture in the EU countries, showing the directions of their changes, types of energy used, and changes in this respect, establishing the correlation between energy consumption and changes in the economic and agricultural situation in the EU countries. All member states of the European Union were deliberately selected for research on 31 December 2018 (28 countries). The research period covered the years 2005–2018. The sources of materials were the literature on the subject, and data from Eurostat. Descriptive, tabular, and graphical methods were used to analyze and present materials, dynamics indicators with a stable base, Gini concentration coefficient, concentration analysis using the Lorenz curve, coefficient of variation, Kendall’s tau correlation coefficient, and Spearman’s rank correlation coefficient. A high concentration of energy consumption in agriculture was found in several EU countries, the largest in countries with the largest agricultural sector, i.e., France and Poland. There were practically no changes in the concentration level. Only in the case of renewable energy, a gradual decrease in concentration was visible. More and more countries developed technologies that allow the use of this type of energy. However, the EU countries differed in terms of the structure of the energy sources used. The majority of the basis was liquid fuels, while stable and gaseous fuels were abandoned in favor of electricity and renewable sources—according to which, in the EU countries, the research hypothesis was confirmed: a gradual diversification of energy sources used in agriculture, with a systematic increase in the importance of renewable energy sources. The second research hypothesis was also confirmed, according to which the increase in the consumption of renewable energy in agriculture is closely related to the economy’s parameters. The use of renewable energy is necessary and results from concern for the natural environment. Therefore, economic factors may have a smaller impact.

scholarly journals Examining the Climatology of Shortwave Radiation in the Northeastern United States

2017 ◽  
Vol 56 (10) ◽  
pp. 2869-2881
Author(s):  
Janel Hanrahan ◽  
Alexandria Maynard ◽  
Sarah Y. Murphy ◽  
Colton Zercher ◽  
Allison Fitzpatrick
Keyword(s):  
Climate Change ◽  
United States ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Predictor Variable ◽  
Shortwave Radiation ◽  
Northeastern United States ◽  
Weather Patterns ◽  
Long Term Trends

AbstractAs demand for renewable energy grows, so does the need for an improved understanding of renewable energy sources. Paradoxically, the climate change mitigation strategy of fossil fuel divestment is in itself subject to shifts in weather patterns resulting from climate change. This is particularly true with solar power, which depends on local cloud cover. However, because observed shortwave radiation data usually span a decade or less, persistent long-term trends may not be identified. A simple linear regression model is created here using diurnal temperature range (DTR) during 2002–15 as a predictor variable to estimate long-term shortwave radiation (SR) values in the northeastern United States. Using an extended DTR dataset, SR values are computed for 1956–2015. Statistically significant decreases in shortwave radiation are identified that are dominated by changes during the summer months. Because this coincides with the season of greatest insolation and the highest potential for energy production, financial implications may be large for the solar energy industry if such trends persist into the future.

scholarly journals Power Generation In Nigeria: The Past, Present And The Future

2020 ◽  
pp. 1-8
Author(s):  
Adeoye Samuel ◽  
◽  
Oladimeji TT ◽  
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Electrical Energy ◽  
Power Imbalance ◽  
Power Demand ◽  
Electrical Power System ◽  
Hydro Power ◽  
The Future

The goal of power sector in Nigeria is to efficiently and reliably transmit electrical power to all parts of the country which are made up of thirty-six states of the federation and the federal capital territory. The constituents of electrical power system are the generation, transmission, distribution and the utilization of electrical energy. There is gross power imbalance between the generation and the required power demand which has culminated into a defective economy in the last three decades. This paper therefore examines the power imbalance between the generation and power demand by the consumers and therefore stresses the need to harness the opportunity of renewable energy generation close to the gap between the power generation and power demand. This will help in transmitting and distributing efficient, effective, reliable power to consumers and improve both human and capital development. The availability of renewable energy sources such as sun, wind and small hydro power will be explored for the future of power generation in the country to fill in the gap between power generation and demand in Nigeria

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