Uticaj tržišnih cena električne energije na isplativost buduće reverzibilne hidroelektrane u Srbiji

2021 ◽  
Vol XXIII (4) ◽  
pp. 23-30
Author(s):  
Radoš Čabarkapa ◽  
◽  
Vladimir Šiljkut ◽  
Danilo Komatina ◽  
Miroslav Tomašević
Keyword(s):  
Electricity Market ◽  
Power Plants ◽  
Cost Benefit Analysis ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Pollution Prevention ◽  
Cost Benefit ◽  
Hydropower Plant ◽  
Electricity Prices ◽  
The Impact

Deregulation in the power sector, liberalization of the electricity market, tendency to connect markets across Europe, introduction of incentives for construction and use of renewable energy sources (RES) and - consequently - their increasing presence in electricity systems, have taken a decisive impact on wholesale electricity prices. In addition, the introduction of CO2 taxes has further increased overall electricity prices. On the other hand, it reduced the profits of fossil fuel thermal power plants (TPPs). Also, in order to meet the prescribed requirements in the field of environmental protection, TPPs must apply pollution prevention systems that are very expensive, both in terms of investment and exploitation. As an alternative, investments in the hydro sector should be considered. However, this option is characterized by other issues; In contrast to the long-term construction and exploitation of hydro capacity, there are fluctuations in electricity prices on the day-ahead market which affect the work schedule and revenues of these facilities. To investigate this problem, hourly and daily prices in the regional electricity market were analysed. Trends in wholesale electricity prices on the day-ahead market have been determined. Their relevant values were estimated and used as one of the sets of input data for cost-benefit analysis and sensitivity analysis of the case study - future reversible hydropower plant (RHPP) "Bistrica". The impact of fluctuations in electricity prices on the day-ahead market was emphasized. The aim of this research was to draw a conclusion as to whether the movement of these prices is in favour of the construction of possible RHPPs in Serbia. Based on the conducted analyses, it can be concluded that the upward trend in the level of wholesale electricity prices (which began in 2019 and is expected to continue in the future considering the EU regulatory policy regarding CO2 emissions taxes) may positively affect the profitability of investment in RHE Bistrica (i.e. to shorten the payback period), but not so dramatically, since with the increase in electricity prices, the costs for pumping also increase.

scholarly journals Environmental Bio Economic Impact in Nicaragua

2013 ◽  
Vol 1 (2) ◽  
pp. 53
Author(s):  
Blanco Orozco ◽  
Napoleón Vicente ◽  
Zúniga González ◽  
Carlos Alberto
Keyword(s):  
Greenhouse Gases ◽  
Power Plants ◽  
Cost Benefit Analysis ◽  
Thermal Power ◽  
Ghg Emissions ◽  
Cost Benefit ◽  
Interconnected System ◽  
Ghg Reduction ◽  
Sugar Mills ◽  
The Impact

In this article the Bio economy of power plants connected to the national interconnected system of Nicaragua is analyzed, through the study of environmental effects of greenhouse gases emissions from the use of solid biomass from sugarcane bagasse and oil to generate electricity. In addition, an analysis of Cost - Benefit of investments to the electricity generation using fossil fuel and bagasse is done. The Methodology EX-Ante Carbon-balance Tool (EX-ACT) was used; this methodology was proposed by the United Nations Organization for Food and Agriculture (FAO) to determine the overall greenhouse gases (GHG) emission balance. Additionally, the WinDASI program, also developed by FAO, was used for the Cost - Benefit Analysis of investment in power plants. Furthermore, we performed marginal costing GHG reduction. The results show, that all plants are sources of GHG emissions, however the impact of sugar mills is partially positive by reforestation components and annual crops. However, the component inputs had negative environmental and socially impact. In the case of thermal power generation plants based on petroleum connected to the national grid, they were found to be sources of greenhouse gases. The analysis of the Benefit Cost in their investment indicates that there is a positive financially impact except in ALBANISA power plant and sugar Mills power plants.

scholarly journals Analyzing Trade in Continuous Intra-Day Electricity Market: An Agent-Based Modeling Approach

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3860
Author(s):  
Priyanka Shinde ◽  
Ioannis Boukas ◽  
David Radu ◽  
Miguel Manuel de Manuel de Villena ◽  
Mikael Amelin
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Agent Based Modeling ◽  
Market Liquidity ◽  
Energy Sources ◽  
Modeling Framework ◽  
Agent Based

In recent years, the vast penetration of renewable energy sources has introduced a large degree of uncertainty into the power system, thus leading to increased trading activity in the continuous intra-day electricity market. In this paper, we propose an agent-based modeling framework to analyze the behavior and the interactions between renewable energy sources, consumers and thermal power plants in the European Continuous Intra-day (CID) market. Additionally, we propose a novel adaptive trading strategy that can be used by the agents that participate in CID market. The agents learn how to adapt their behavior according to the arrival of new information and how to react to changing market conditions by updating their willingness to trade. A comparative analysis was performed to study the behavior of agents when they adopt the proposed strategy as opposed to other benchmark strategies. The effects of unexpected outages and information asymmetry on the market evolution and the market liquidity were also investigated.

Evaluation of Flexibility Optimization for Thermal Power Plants

2018 ◽  
Author(s):  
Moritz Hübel ◽  
Jens Hinrich Prause ◽  
Conrad Gierow ◽  
Egon Hassel ◽  
Raphael Wittenburg ◽  
...  
Keyword(s):  
Power Plant ◽  
Electricity Market ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Economic Effects ◽  
Economic Evaluations ◽  
Start Ups ◽  
Flexibility Parameters ◽  
Operational Schedule

The increasing share of fluctuating renewable energy sources leads to changing requirements for conventional power plants. The changing characteristics of the residual load requires the conventional fleet to operate with higher load gradients, lower minimum load at improved efficiency levels as well as faster start-ups and provision of ancillary services. Despite the requirements from the electricity market, the value of improving those flexibility parameters is hard to evaluate for power plant operators. In order to quantify the additional benefit that can be achieved by improving flexibility parameters on a certain power plant in a changing market environment, an adjustable load dispatch model has developed for that purpose. Using past electricity market data, the model is validated for typical coal and a typical gas fired power plants by reproducing their operational schedule. In the next step, the model is used to apply parameter changes to the power plants specifications and economic effects are demonstrated. General statements are derived on which flexibility parameter needs to be improved on each power plant type. Furthermore, specific economic evaluations are shown for the reference power plants in order to present the ability of the developed tool to support investment decisions for modernization projects of existing power plants.

scholarly journals Considerations Regarding the Negative Prices on the Electricity Market

Proceedings ◽  
2020 ◽  
Vol 63 (1) ◽  
pp. 26
Author(s):  
Pavel Atănăsoae ◽  
Radu Dumitru Pentiuc ◽  
Eugen Hopulele
Keyword(s):  
Renewable Energy ◽  
Electricity Markets ◽  
Electricity Market ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Electricity Prices ◽  
Market Areas ◽  
The Impact ◽  
Market Coupling

Increasing of intermittent production from renewable energy sources significantly affects the distribution of electricity prices. In this paper, we analyze the impact of renewable energy sources on the formation of electricity prices on the Day-Ahead Market (DAM). The case of the 4M Market Coupling Project is analyzed: Czech-Slovak-Hungarian-Romanian market areas. As a result of the coupling of electricity markets and the increasing share of renewable energy sources, different situations have been identified in which prices are very volatile.

scholarly journals CFD analysis of the combustion in the BERL burner fueled with a hydrogen-natural gas mixture

2020 ◽  
Vol 197 ◽  
pp. 10002
Author(s):  
Tommaso Capurso ◽  
Vito Ceglie ◽  
Francesco Fornarelli ◽  
Marco Torresi ◽  
Sergio M. Camporeale
Keyword(s):  
Natural Gas ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Ghg Emissions ◽  
Combustion Model ◽  
Gas Mixture ◽  
Low Carbon ◽  
Radial Temperature ◽  
The Impact

The regulatory restrictions, currently acting, impose a significant reduction of the Greenhouse Gas (GHG) emissions. After the coal-to-gas transition of the last decades, the fossil fuel-to-renewables switching is the current perspective. However, the variability of energy production related to Renewable Energy Sources requires the fundamental contribution of thermal power plants in order to guaranty the grid stability. Moving toward a low-carbon society, the industry is looking at a reduction of high carbon content fuels, pointing to Natural Gas (NG) and more recently to hydrogen-NG mixtures. In this scenario, a preliminary study of the BERL swirled stabilized burner is carried out in order to understand the impact of blending natural gas with hydrogen on the flame morphology and CO emissions. Preliminary 3D CFD simulations have been run with the purpose to assess the best combination of combustion model (Non Premixed and Partially Premixed Falmelets), turbulence model (Realizable k ɛ and the Reynolds Stress equation model) and chemical kinetic mechanism (GriMech3.0, GriMech 1.2 and Frassoldati). The numerical results of the BERL burner fueled with natural gas have been compared with experimental data in terms of flow patterns, radial temperature profiles, O2, CO and CO2 concentrations. Finally, a 30% hydrogen in natural gas mixture has been considered, keeping fixed the thermal power output of the burner and the global equivalence ratio.

scholarly journals COST BENEFIT ANALYSIS OF INSTALLING OF VARIOUS POWER PLANTS USING DIFFERENT PARAMETER

2020 ◽  
Vol 4 (3) ◽  
pp. 30-34
Author(s):  
Amit Kishanpuri ◽  
A.K. Sharma
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Cost Benefit Analysis ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Energy Sources ◽  
Alternative Source

There are many type power plant in India such as Thermal power plant, hydel power plant ,nuclear power plant , solar power plant and wind power plant . In this paper, we are presentedthe renewable energy sources in order to meet an energetic demand in India with a lowestcost. These are beneficial the renewable energy sources like solar, wind, etc. This studyfocuses on making use renewable sources as an alternative source of energy. Renewableenergy sources like solar, wind and renewable energy due to its availability, continuity andcleanness.

Korišćenje alata za tržišno modelovanje pri analizi benefita po elektroenergetski sistem izgradnjom novog interkonektivnog dalekovoda

2020 ◽  
Vol 22 (1-2) ◽  
pp. 131-136
Author(s):  
Srđan Bošković
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Transmission Lines ◽  
Power Plants ◽  
Cost Benefit Analysis ◽  
Renewable Energy Sources ◽  
Cost Benefit ◽  
Green Energy ◽  
Total Consumption ◽  
Cross Border

The goal of this paper is to introduce the market modeling tool Antares and to point out possibilities of its utilisation in cost-benefit analysis of energy projects. Market modeling of power systems represents a detailed modeling of generating units, consumption and cross-border connections with neighboring systems in order to find economically optimal dispatching of power plants by which the total consumption will be satisfied. In this paper, two power systems connected by cross-border transmission lines will be modeled (in one of them there is a large amount of installed capacity of renewable energy sources). The benefits of reinforcing cross-border connection embodied in avoiding curtailment of available renewable energy due to low energy consumption and lack of energy storage systems will be analyzed, along with corresponding benefits of reduced CO2 emissions due to the ability to transfer green energy into neighboring power systems through increased cross-border capacity.

scholarly journals Economic Analysis of Measures for GHG Emission Reduction

2021 ◽  
Vol 13 (4) ◽  
pp. 1712
Author(s):  
Jasmina Ćetković ◽  
Slobodan Lakić ◽  
Angelina Živković ◽  
Miloš Žarković ◽  
Radoje Vujadinović
Keyword(s):  
Economic Analysis ◽  
Cost Benefit Analysis ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Ghg Emissions ◽  
Cost Benefit ◽  
Paris Agreement ◽  
The European Union ◽  
Western Balkans ◽  
Increase Energy Efficiency

The European Union, as a signatory to the Paris Agreement, has approached the action against greenhouse gas (GHG) emissions and climate change quite ambitiously, striving to achieve climate neutrality by 2050. Extension of the European Green Deal policy implementation to the Western Balkans can only increase the chances of the climate neutral agenda. Expectations from Montenegro in the coming period are transposable to other Western Balkans countries as they are urged to start implementing the Paris Agreement by establishing appropriate policies and measures. In this regard, this paper presents the analysis of the financial and economic analysis results of measures to reduce GHG emissions in Montenegro. With this respect, least cost analysis—cost effectiveness analysis and cost–benefit analysis were conducted. The analysis results indicated that due to the thermal power plant reconstruction, increased use of renewable energy sources and measures to increase energy efficiency, the largest reduction in GHG emissions in Montenegro in the next 10 years is expected in the energy sector.

scholarly journals The Impact of Variable Renewable Energy Penetration on Wholesale Electricity Prices in Japan Between FY 2016 and 2019

2021 ◽  
Vol 2 ◽  
Author(s):  
Makishi Sakaguchi ◽  
Hidemichi Fujii
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Renewable Energy Sources ◽  
Ordinary Least Squares ◽  
High Price ◽  
Spot Price ◽  
Electricity Prices ◽  
National Analysis ◽  
The Impact ◽  
Price Spikes

The merit order effect (MOE), which renewable energy sources can decrease wholesale electricity prices, plays an important role in establishing low-carbon societies. After the liberalization of the electricity market, the trade volume of the Japan Electric Power Exchange (JEPX) day-ahead spot market drastically increased between 2016 and 2019; however, price spikes still occur often. Ordinary least squares and quantile regression analyses were applied in this study to investigate how wind and solar photovoltaics (PV) energy generation affect the JEPX day-ahead spot price by time, price range, and area, and we concluded that the MOE of wind increased between 2016 and 2019 while that of PV decreased during this time. In regard to the high price ranges, although wind generation is not significant in terms of reducing price spikes, PV had this effect in 2016 and 2017 but not during the other years covered. The study area was divided into four regions, and each area followed trends that were different from those of the national analysis. Overall, the key finding of our study is that wind power has more potential to reduce electricity prices than PV.

A Review on Utilization of Fly- Ash and Pond-Ash as a Partial Replacement of Cement in Concrete Mix Design

2018 ◽  
pp. 413-418
Author(s):  
Harshkumar Patel ◽  
Yogesh Patel
Keyword(s):  
Fly Ash ◽  
Electricity Generation ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Strength Test ◽  
Partial Replacement ◽  
Pond Ash ◽  
Research Activities ◽  
Ash Disposal

Now-a-days energy planners are aiming to increase the use of renewable energy sources and nuclear to meet the electricity generation. But till now coal-based power plants are the major source of electricity generation. Disadvantages of coal-based thermal power plants is disposal problem of fly ash and pond ash. It was earlier considered as a total waste and environmental hazard thus its use was limited, but now its useful properties have been known as raw material for various application in construction field. Fly ash from the thermal plants is available in large quantities in fine and coarse form. Fine fly ash is used in construction industry in some amount and coarse fly ash is subsequently disposed over land in slurry forms. In India around 180 MT fly is produced and only around 45% of that is being utilized in different sectors. Balance fly ash is being disposed over land. It needs one acre of land for ash disposal to produce 1MW electricity from coal. Fly ash and pond ash utilization helps to reduce the consumption of natural resources. The fly ash became available in coal based thermal power station in the year 1930 in USA. For its gainful utilization, scientist started research activities and in the year 1937, R.E. Davis and his associates at university of California published research details on use of fly ash in cement concrete. This research had laid foundation for its specification, testing & usages. This study reports the potential use of pond-ash and fly-ash as cement in concrete mixes. In this present study of concrete produced using fly ash, pond ash and OPC 53 grade will be carried. An attempt will be made to investigate characteristics of OPC concrete with combined fly ash and pond ash mixed concrete for Compressive Strength test, Split Tensile Strength test, Flexural Strength test and Durability tests. This paper deals with the review of literature for fly-ash and pond-ash as partial replacement of cement in concrete.

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