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.

Modern Trends in the Production of Renewable Energy: the Cost Benefit Approach

2021 ◽  
pp. 6-17
Author(s):  
Leonid Hr. Melnyk ◽  
Larysa V. Shaulska ◽  
Olena I. Matsenko ◽  
Vladyslav S. Piven ◽  
Vladyslav V. Konoplov
Keyword(s):  
Renewable Energy ◽  
Alternative Energy ◽  
Power Plants ◽  
Fossil Fuels ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Cost Benefit ◽  
Green Energy ◽  
Green Economy ◽  
Energy Sources

In the article modern trends in the production of renewable energy were analyzed. It was determined that renewable energy sources have many undeniable advantages. First of all, they are much more environmentally friendly than traditional methods of generating energy based on the combustion of fossil fuels. Another advantage of renewable energy sources is their distribution. Unlike traditional energy fuel sources that units possess, renewable energy sources are available to most of the world's inhabitants. It was considered that today in the country there are a number of motivational tools that stimulate the development of green energy. It was proved that the ways of sustainization of the energy sector are associated with three main areas of energy use: electricity generation; heating and cooling of premises; driving vehicles. A system of subsidies for primary investments (purchase and installation of equipment), as well as the commercialization of «green» electricity (costs of entering the market, partial insurance of risks), is applied. It was determined that a separate page in the formation of alternative energy is the rivalry of two directions of its development, based on the creation of concentrated and deconcentrated (distributed) power plants. The first focuses on the concentration of production energy units (solar panels or wind turbines) in one area. The second direction is associated with the deconcentrating of energy sources, that is, the dispersal of individual capacities both across the territory and by forms of ownership. The transition to renewable energy sources is critical for most countries. This is one of the most important steps towards ensuring their energy independence and further restructuring of economic systems towards the formation of a «green» economy. It is gratifying that, along with other countries, Ukraine is making its efforts in this.

scholarly journals A Review of Virtual Inertia Techniques for Renewable Energy-Based Generators

2020 ◽  
Author(s):  
Ana Fernández-Guillamón ◽  
Emilio Gómez-Lázaro ◽  
Eduard Muljadi ◽  
Ángel Molina-Garcia
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Power System ◽  
Power Plants ◽  
Control Strategies ◽  
Renewable Energy Sources ◽  
Extensive Discussion ◽  
Renewable Sources ◽  
Virtual Inertia ◽  
Alternative Sources

Over recent decades, the penetration of renewable energy sources (RES), especially photovoltaic and wind power plants, has been promoted in most countries. However, as these both alternative sources have power electronics at the grid interface (inverters), they are electrically decoupled from the grid. Subsequently, stability and reliability of power systems are compromised. Inertia in power systems has been traditionally determined by considering all the rotating masses directly connected to the grid. Thus, as the penetration of renewable units increases, the inertia of the power system decreases due to the reduction of directly connected rotating machines. As a consequence, power systems require a new set of strategies to include these renewable sources. In fact, ‘hidden inertia,’ ‘synthetic inertia’ and ‘virtual inertia’ are terms currently used to represent an artificial inertia created by inverter control strategies of such renewable sources. This chapter reviews the inertia concept and proposes a method to estimate the rotational inertia in different parts of the world. In addition, an extensive discussion on wind and photovoltaic power plants and their contribution to inertia and power system stability is presented.

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

scholarly journals Modelling the Future of the Baltic Energy Systems: A Green Scenario

2021 ◽  
Vol 58 (3) ◽  
pp. 47-65
Author(s):  
L. Petrichenko ◽  
R. Petrichenko ◽  
A. Sauhats ◽  
K. Baltputnis ◽  
Z. Broka
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Systems ◽  
Power Plants ◽  
Optimization Problems ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Sources ◽  
Baltic States ◽  
The Baltic

Abstract The electricity sector in Europe and in the world is undergoing rapid and profound changes. There is a sharp increase in the capacity of renewable energy sources, coal and nuclear power plants are being closed and new technologies are being introduced. Especially rapid changes are taking place in the energy systems of the Baltic States. Under these conditions, there is an emerging need for new planning tools particularly for the analysis of the power system properties in a long-term perspective. The main contribution of this article lies in the formulation and solution of optimization problems that arise when planning the development of power systems in the Baltic States. To solve this problem, it is necessary to use models of various power plants and make a number of assumptions, the justification of which requires the following actions: to briefly review the current situation of the production and demand of energy in the Baltic power systems; to conduct an overview of the Baltic interconnections and their development; to make forecasts of energy prices, water inflow, energy production and demand; to set and solve the problems of optimization of power plant operation modes; to demonstrate the possibility and limitations of the developed tools on the basis of real-life and forecast data. In this paper, a case study is performed using the main components of the overall modelling framework being developed. It focuses on the Baltic power systems in 2050 under the conditions of significant expansion in the installed capacity of renewable energy sources (RESs) and diminished fossil fuel power plant activity. The resulting electricity generation mix and trade balance with neighbouring countries is assessed, showing that even with significant RES expansion, the Baltic countries remain net importers and because of the intermittency of RESs, there are hours within the year when the demand cannot be met.

scholarly journals Multi-Period Generation Expansion Planning for Sustainable Power Systems to Maximize the Utilization of Renewable Energy Sources

2020 ◽  
Vol 12 (3) ◽  
pp. 1083 ◽  
Author(s):  
Qingtao Li ◽  
Jianxue Wang ◽  
Yao Zhang ◽  
Yue Fan ◽  
Guojun Bao ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Objective Function ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Generation Expansion Planning ◽  
Term Operation ◽  
Expansion Planning ◽  
Generation Expansion

The increasing penetration of renewable energy brings great challenges to the planning and operation of power systems. To deal with the fluctuation of renewable energy, the main focus of current research is on incorporating the detailed operation constraints into generation expansion planning (GEP) models. In most studies, the traditional objective function of GEP is to minimize the total cost (including the investment and operation cost). However, in power systems with high penetration of renewable energy, more attention has been paid to increasing the utilization of renewable energy and reducing the renewable energy curtailment. Different from the traditional objective function, this paper proposes a new objective function to maximize the accommodation of renewable energy during the planning horizon, taking into account short-term operation constraints and uncertainties from load and renewable energy sources. A power grid of one province in China is modified as a case study to verify the rationality and effectiveness of the proposed model. Numerical results show that the proposed GEP model could install more renewable power plants and improve the accommodation of renewable energy compared to the traditional GEP model.

Renewable energy development in Southeast Asia

2019 ◽  
Vol 1 (2) ◽  
pp. 52-62
Author(s):  
Yu. V. Vasil’ev ◽  
I. L. Ozernykh
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Southeast Asia ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Photovoltaic Energy ◽  
The Future ◽  
Specialized Equipment ◽  
High Level ◽  
Virtual Synchronous Machine

Subject of study: renewable energy, including photovoltaic energy. Goals: to present the main topics of the ACEPT conference, also formulated the topical issues of renewable energy and methods for their solution.Introduction: from October 31 to November 2, 2018, a conference on topical issues of green energy in Southeast Asia was held in Singapore. This event was viewed as part of the Singapore Energy Week. During the event, a dialogue was held between the leaders of regional renewable energy, equipment manufacturers, developers, businessmen, and civil servants in order to work out strategies for the development of green energy, which was supposed to solve the main modern problems of renewable energy in general and photovoltaic energy in particular. It was determined that the main problem of the new energy sector is to overcome the technological barrier to the integration of hybrid microenergy systems as cells of the smart grid of the future. Much attention was paid to the problem of energy storage in modern energy as a means of improving the flexibility and sustainability of the Microgrid in combination with renewable energy sources. The issues discussed were followed by the formation of new solutions to the problems posed.Methods: this chapter contains the main developed and actively developing technologies for creating specialized equipment that will significantly simplify the design and increase speed. The key task in this direction is the development of the Virtual Synchronous Machine (VSM), which has a high level of controllability and dynamic stability. The article presents the main schemes of operation of this equipment.Results and discussions: in the future, it is assumed that electric power systems will consist of a multitude of microsystems interconnected by backup links. This chapter contains current methods of promoting new solutions to the markets. Conclusion: based on the work carried out, the main conclusions were formulated.

scholarly journals Land-Use Change and Bioenergy Production: Soil Consumption and Characterization of Anaerobic Digestion Plants

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4001
Author(s):  
Giovanni Ferrari ◽  
Federico Ioverno ◽  
Marco Sozzi ◽  
Francesco Marinello ◽  
Andrea Pezzuolo
Keyword(s):  
Renewable Energy ◽  
Surface Area ◽  
Renewable Energy Sources ◽  
Cost Benefit ◽  
Energy Systems ◽  
Total Consumption ◽  
Soil Sealing ◽  
Biogas Plants ◽  
Average Surface Area ◽  
Soil Consumption

The exploitation of bioenergy plays a key role in the process of decarbonising the economic system. Huge efforts have been made to develop bioenergy and other renewable energy systems, but it is necessary to investigate the costs and problems associated with these technologies. Soil consumption and, in particular, soil sealing are some of these aspects that should be carefully evaluated. Agricultural biogas plants (ABPs) often remove areas dedicated to agricultural activities and require broad paved areas for the associated facilities. This study aimed to (i) assess the surfaces destined to become facilities and buildings in ABPs, (ii) correlate these surfaces with each other and to the installed powers of the plants, and (iii) estimate the consumption of soil in bioenergy applications in Italy. Two hundred ABPs were sampled from an overall population of 1939, and the extents of the facilities were measured by aerial and satellite observations. An ABP with an installed power of 1000 kW covers an average surface area of up to 23,576 m2. Most of this surface, 97.9%, is obtained from previously cultivated areas. The ABP analysis proved that 24.7 m2 of surface area produces 1 kW of power by bioenergy. The obtained model estimated a total consumption of soil by ABPs in Italy of 31,761,235 m2. This research can support stakeholders in cost-benefit analyses to design energy systems based on renewable energy sources.

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.

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 A Study for the Optimal Exploitation of Solar, Wind and Hydro Resources and Electrical Storage Systems in the Bormida Valley in the North of Italy

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5291
Author(s):  
Stefano Bracco
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Energy Sources ◽  
Medium Size ◽  
Low Carbon ◽  
The North ◽  
Wind Power Plants

The exploitation of distributed renewable energy sources leads to a low-carbon energy transition, mainly based on the optimal integration of hydro, PV and wind power plants with the remaining high-performance fossil-fuel power stations. In the last twenty years, European Union (EU) countries have shown a significant increase of the power installed in new PV and wind power plants, together with the refurbishment of small and medium size hydro stations. In particular, in Italy, PV and wind energy production has strongly increased and nowadays there are regions characterized by a very green energy mix. In this new scenario, energy storage becomes a viable solution to mitigate the variability of renewable energy sources thus optimizing the network operation. The present paper is focused on the Liguria region, in the North of Italy and in particular on the Bormida Valley where nowadays more than the half of the annual electricity consumption is covered by the renewable energy local production. The paper describes the current energy situation and proposes an optimization tool to investigate the possibility of installing new PV and wind power plants, as well as energy intensive storage units based on sodium-sulphur batteries; moreover, different scenarios are analyzed through the definition of economic and environmental key performance indicators.

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