scholarly journals Methodology for Analysing Electricity Generation Unit Costs in Renewable Energy Sources (RES)

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7241
Author(s):  
Ryszard Bartnik ◽  
Dariusz Pączko
Keyword(s):  
Renewable Energy ◽  
Net Present Value ◽  
Renewable Energy Sources ◽  
Unit Cost ◽  
Operating Time ◽  
Electricity Production ◽  
Energy Sources ◽  
Energy Market ◽  
Unit Costs ◽  
Generation Unit

Due to the constant trend of building wind turbine sets and photovoltaic cells, the so-called renewable energy sources, it is important to develop a mathematical model that will allow us to analyse the economic viability of their operation. By using this model, multivariate calculations should be carried out and developed in the form of universal nomograms that will allow us to estimate this viability almost on an immediate basis. In this paper, such a model for the unit cost of electricity production from renewable energy sources is presented. It is based on a continuous-time Net Present Value notation. The multi-variant calculations performed with it take into account different subsidy levels and operating time of the renewable energy sources. The paper presents values of unit costs of electricity production from renewable energy sources and values of maximum subsidies for this production. It turns out that subsidies are necessary for renewable energy sources to exist on the energy market. An additional disadvantage is the fact that renewable energy sources are not able to provide a stable electricity supply throughout the year.

scholarly journals The role of RES in the European energy system

2019 ◽  
Vol 24 (6) ◽  
pp. 349-353
Author(s):  
Beata Zakrzewska ◽  
Konrad Rojek
Keyword(s):  
European Union ◽  
Renewable Energy ◽  
Statistical Data ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Electricity Production ◽  
Energy Sources ◽  
Energy Market ◽  
The European Union

The purpose of the article is to show the role of RES in the European energy system. The article presents the role of renewable energy sources (RES) in the production of electricity in the European Union (EU). The position of Europe in comparison to other countries in the global renewable energy market is shown. The latest statistical data was used for this purpose. The analysis covered the years 2004-2017. The article also includes a forecast of electricity production from renewable sources by 2050.

scholarly journals Towards 100% Renewables by 2030: Transition Alternatives for a Sustainable Electricity Sector in Isla de la Juventud, Cuba

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2862
Author(s):  
Mika Korkeakoski
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Electric Power ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Electricity Production ◽  
Energy Sources ◽  
Cuban Government ◽  
Isla De La Juventud ◽  
Near Future

Renewable Energy Sources (RES) have become increasingly desirable worldwide in the fight against global climate change. The sharp decrease in costs of especially wind and solar photovoltaics (PV) have created opportunities to move from dependency on conventional fossil fuel-based electricity production towards renewable energy sources. Renewables experience around 7% (in 2018) annual growth rate in the electricity production globally and the pace is expected to further increase in the near future. Cuba is no exception in this regard, the government has set an ambitious renewable energy target of 24% RES of electricity production by the year 2030. The article analyses renewable energy trajectories in Isla de la Juventud, Cuba, through different future energy scenarios utilizing EnergyPLAN tool. The goal is to identify the best fit and least cost options in transitioning towards 100% electric power systemin Isla de la Juventud, Cuba. The work is divided into analysis of (1) technical possibilities for five scenarios in the electricity production with a 40% increase of electricity consumption by 2030: Business As Usual (BAU 2030, with the current electric power system (EPS) setup), VISION 2030 (according to the Cuban government plan with 24% RES), Advanced Renewables (ARES, with 50% RES), High Renewables (HiRES, with 70% RES), and Fully Renewables (FullRES, with 100% RES based electricity system) scenarios and (2) defining least cost options for the five scenarios in Isla de la Juventud, Cuba. The results show that high penetration of renewables is technically possible even up to 100% RES although the best technological fit versus least cost options may not favor the 100% RES based systems with the current electric power system (EPS) setup. This is due to realities in access to resources, especially importation of state of the art technological equipment and biofuels, financial and investment resources, as well as the high costs of storage systems. The analysis shows the Cuban government vision of reaching 24% of RES in the electricity production by 2030 can be exceeded even up to 70% RES based systems with similar or even lower costs in the near future in Isla de la Juventud. However, overcoming critical challenges in the economic, political, and legal conditions are crucially important; how will the implementation of huge national capital investments and significant involvement of Foreign Direct Investments (FDI) actualize to support achievement of the Cuban government’s 2030 vision?

scholarly journals IMPACT OF PHOTOVOLTAIC POWER PLANTS ON THE OVERALL ELECTRIC POWER SYSTEM OF THE REPUBLIC OF MACEDONIA

2013 ◽  
Vol 4 (2) ◽  
Author(s):  
Aleksandra Kanevče ◽  
Igor Tomovski ◽  
Ljubčo Kocarev
Keyword(s):  
Renewable Energy ◽  
Electric Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Electric Power System ◽  
Electricity Production ◽  
Energy Sources ◽  
Republic Of Macedonia ◽  
Photovoltaic Power ◽  
The Republic

In this paper we analyze the impact of the renewable energy sources on the overall electric power system of the Republic of Macedonia. Specifically, the effect of the photovoltaic power plants is examined. For this purpose we developed an electricity production optimization model, based on standard network flow model. The renewable energy sources are included in the model of Macedonia based on hourly meteorological data. Electricity producers that exist in 2012 are included in the base scenario. Two more characteristic years are analyzed, i.e. 2015 and 2020. The electricity producers planned to be constructed in these two years (which include the renewable energy sources) are also included. The results show that the renewable energy sources introduce imbalance in the system when the minimum electricity production is higher than the electricity required by the consumers. But, in these critical situations the production from photovoltaic energy sources is zero, which means that they produce electricity during the peak load, and do not produce when the consumption is at minimum.

scholarly journals Renewable energy development in Hungary

2012 ◽  
pp. 73-77
Author(s):  
Orsolya Nagy
Keyword(s):  
Renewable Energy ◽  
Energy Production ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Electricity Production ◽  
Energy Sources ◽  
The European Union ◽  
Fuel Prices ◽  
The Earth ◽  
Renewable Energy Development

Due to the exhaustion of the fossile fuel reserves of the Earth, the increase of fossile fuel prices and the difficulties concerning stable fuel supply, the increase of electricity production from renewable energy sources has a special strategic importance. In this study, I am going to evaluate the circumstances of the production and use of renewable energy sources in Hungary and in the European Union. I present the Hungarian economic, energy policy-related and social circumstances which make it necessary to support renewable energy production. I am going to give an overview on the related EU strategies concerning the sector and the Hungarian development plan in this field. I pay particular attention to the examination of development opportunities and the R&D activities going on in this area in Hungary, as well as the efficiency of the means used to improve renewable energy use.

scholarly journals Produkcja energii elektrycznej ze źródeł odnawialnych w krajach Unii Europejskiej i w Polsce w kontekście koncepcji zrównoważonego rozwoju

2017 ◽  
Vol 17(32) (2) ◽  
pp. 126-135
Author(s):  
Łukasz Kozar
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Data Bank ◽  
Electricity Production ◽  
Energy Sources ◽  
Local Data ◽  
Renewable Sources ◽  
Regional Aspect ◽  
The Eu

The article presents changes that occurred in the production of electricity from renewable energy sources in the EU-28 and in Poland in the years of 2010-2015. The analysis of the changes was based on the data from Eurostat and the Local Data Bank. Based on the indicator of the share of electricity generated from renewable sources in gross electricity consumption, Poland in the period under discussion, was characterized as one of the highest dynamics of change among all EU countries. In addition, the article analyzes the situation concerning the production of electricity in Poland in the regional aspect. From the taken analyzes, it is clear that in all voivodeships, apart from Małopolskie voivodeship, in 2015, more electricity was produced from renewable sources compared to 2010. In the period under discussion, the share of electricity production from renewable sources in total electricity production also increased by 99% in Poland.

scholarly journals The Cost-Benefit Analysis of the Electricity Production from Small Scale Renewable Energy Sources in the Conditions of Romania

2019 ◽  
Vol 32 ◽  
pp. 385-389 ◽  
Author(s):  
Pavel Atănăsoae ◽  
Radu Dumitru Pentiuc ◽  
Dan Laurențiu Milici ◽  
Elena Daniela Olariu ◽  
Mihaela Poienar
Keyword(s):  
Renewable Energy ◽  
Cost Benefit Analysis ◽  
Renewable Energy Sources ◽  
Cost Benefit ◽  
Electricity Production ◽  
Energy Sources ◽  
Small Scale ◽  
Benefit Analysis ◽  
The Cost

How the energy market will change water services

2011 ◽  
Vol 6 (3) ◽  
Author(s):  
Eilard Jacobs
Keyword(s):  
Renewable Energy ◽  
Solar Energy ◽  
20Th Century ◽  
21St Century ◽  
Renewable Energy Sources ◽  
Green Buildings ◽  
Water Utilities ◽  
Energy Sources ◽  
Energy Market ◽  
Water Services

In the 20th century energy and water services are provided by large centralized systems. The development of renewable energy sources, especially solar energy, however generates a transition towards more decentralized services in the 21st century. The development of green buildings and other off the grid solutions facilitates a growing demand for these decentralized solutions, not only for energy but also for water services. It is the challenge for water utilities to be a player this development.

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