scholarly journals Modernization and Development Scenarios of the Power Plants in the Present Energy Market Context

2019 ◽  
Author(s):  
Adelaida Mihaela Duinea
Keyword(s):  
Power Plants ◽  
Energy Market ◽  
Development Scenarios

scholarly journals Statistical Modeling of the Energy Market Development in the Regions of Ukraine

2021 ◽  
Vol 1 (516) ◽  
pp. 151-157
Author(s):  
T. G. Chala ◽  
◽  
Y. V. Priadko ◽  
O. I. Slavuta ◽  
◽  
...  
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Power Plants ◽  
Sustainable Development Goals ◽  
Electrical Power ◽  
Electricity Production ◽  
Market Development ◽  
Energy Sources ◽  
Energy Market ◽  
Development Goals

The article is aimed at modeling the energy market of Ukraine on the meso-level, identifying its features and development problems, forming a system of indicators for monitoring the development of electricity production at the regional level. It is determined that Ukraine produces electrical power mainly from non-renewable energy sources, namely fossil and mineral fuels, using nuclear power plants and thermal power plants, which comprises 54% of the total electricity production. Wind, solar sources of electrical power, biofuels and hydroelectric power plants make up a smaller part of production – 7%. It is noted that Ukraine annually consumes about 92 million tonnes of oil equivalent (toe) of energy, has a high level of energy intensity of the economy, therefore, in order to reach the world average level, it is necessary to reduce energy consumption by 50 million toe. The level of losses of the produced and imported energy during its transformation and transportation to the end user is 44%. The potential for reducing energy consumption during consumption in sectors such as housing, budget-based and energy supply is about 19 million toe. To assess the state of the energy sector in Ukraine in 2019, a grouping of regions of Ukraine was carried out using cluster analysis. The regions that have entered the 1st cluster, namely: Dnipropetrovsk, Donetsk and Zaporizhzhia regions, have the best prospects for the rapid innovative development of the energy market. The regions that are included in the 3rd cluster have the lowest values of energy sector development indicators among other clusters and require special attention to the development of new, cost-effective energy technologies. The system of indicators for the analysis of the energy market development on meso-level is substantiated. The proposed indicators are adapted to the indicators of monitoring the achievement of sustainable development goals, namely: sustainable development goals 7 «Ensuring access to inexpensive, reliable, sustainable and modern energy sources for everyone».

Impact of Forecast Uncertainty on Wind Farm Profitability

2020 ◽  
Vol 142 (4) ◽  
Author(s):  
Guido Francesco Frate ◽  
Lorenzo Ferrari ◽  
Umberto Desideri
Keyword(s):  
Power Plants ◽  
Wind Farm ◽  
Forecast Error ◽  
Market Competition ◽  
Renewable Energy Sources ◽  
Power Level ◽  
Point Of View ◽  
Energy Market ◽  
Forecast Errors ◽  
Forecast Lead Time

Abstract The great amount of support schemes that initially fueled the fast and often uncontrollable, renewable energy sources (RESs) growth have been strongly reduced or revoked in many countries. Currently, the general trend is to try to equate RESs to traditional power plants. From the energy market point of view, this entails exposing RESs to market competition and mechanics. For example, it could be requested that RESs submit a production schedule in advance and are financially responsible for any deviation from it. This could push the wind farm (WF) operators to make accurate forecasts, thus fostering the electric system resiliency and an efficient use of balancing resources. From the forecasting point of view, this is not a trivial problem since the schedule submission is often due 10–12 h before the actual delivery. Since forecast errors are unavoidable, the submitted schedule could turn out to be infeasible, thus forcing the WF to adopt correcting actions, which are generally costly. This study estimates the revenue reduction that would affect a WF operating in the energy market due to forecast errors. To do this in a realistic way, a case study is selected, and realistic forecast scenarios are generated by using a copula approach. Relevant forecast error features, like autocorrelation and dependency on forecasted power level and forecast lead time, are modeled. The revenue reduction due to balancing actions is calculated on an annual basis, by using typical days. These were derived through a clustering procedure based on production data. Losses ranging from 5% to 35% have been found, depending on the days and market prices. A sensitivity analysis to the costs of balancing actions is performed. The effect of different market architectures and different RESs penetration level is considered in the analysis. Finally, the effectiveness of two techniques (i.e., curtailment and batteries) to reduce forecast error impact in highly penalizing market environments is assessed.

FORECASTING ENERGY MARKET DEVELOPMENT SCENARIOS

2020 ◽  
Vol 3 (11) ◽  
pp. 15-19
Author(s):  
I. B. TESLENKO ◽  
◽  
A. A. PROCHNOVA ◽  
Keyword(s):  
Electric Power ◽  
Electricity Market ◽  
Electric Power Industry ◽  
Power Industry ◽  
Market Development ◽  
Energy Market ◽  
Development Scenarios

The article highlights the main challenges faced by the electricity market during the coronavirus pandemic. The main prospects and new trends in the development of the electric power industry are highlighted.

Low DP FlameSheet™ Extended Validation of a Flexible, Low Emissions, Higher Output and Efficiency F-Class Turbine Upgrade

2020 ◽  
Author(s):  
Hany Rizkalla ◽  
Timothy Hui ◽  
Fred Hernandez ◽  
Matthew Yaquinto ◽  
Ramesh KeshavaBhattu
Keyword(s):  
Gas Turbine ◽  
Shale Gas ◽  
Power Plants ◽  
Heat Rate ◽  
Combined Cycle ◽  
Energy Market ◽  
Heavy Duty ◽  
Ambient Conditions ◽  
Rate Improvement ◽  
Combustion Systems

Abstract Renewables proliferation in the energy market is driving the need for flexibility in gas fired power plants to enable a wider and emissions compliant operability range. The ability for a gas fired plant to peak fire while maintaining emissions compliance, full life interval capability, improved simple and combined cycle heat rate and the ability to achieve extended turndown, positions a gas fired asset to benefit from an improved capacity factor, and overall economic viability in an increasingly renewables’ dependent energy market. The low pressure drop FlameSheet™ combustor variant’s implementation alongside PSM’s Gas Turbine Optimization Package (GTOP3.1) on a commercially operating frame 7FA heavy duty gas turbine in 2018 and as introduced in GT2019-91647, is presented with emphasis on extended validation of operational and emissions/tuning performance at different ambient conditions, higher peak firing and minimum load after one year of continuous commercial operation. The output and heat rate improvement achieved with the FlameSheet™/GTOP3.1 conversion thus enabling improved capacity is also discussed. As shale gas continue to grow as a dominant source of the U.S Natural gas supply, the need for fuel flexible combustion systems enabling tolerance to higher ethane/ethylene concentrations associated with Shale gas is required for improved operability. The adverse impact and means to mitigate such higher ethane/ethylene content on standard F-Class heavy duty combustion systems is also presented as part of said FlameSheet™/GTOP 3.1 conversion.

A Risk-Informed On-Line Test and Maintenance Framework for Redundant Instrumentation and Control Systems in Nuclear Power Plants

2004 ◽  
Author(s):  
Lixuan Lu ◽  
Jin Jiang
Keyword(s):  
Reliability Analysis ◽  
Control Systems ◽  
Nuclear Power ◽  
Safety Assessment ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Energy Market ◽  
On Line ◽  
Line Test ◽  
And Control

Deregulation forces Nuclear Power Plants (NPPs) to operate not only safely, but also more economically. Instrumentation and Control (I&C) systems in NPPs play an important role to reduce operational related costs. Therefore, a well-planned test and maintenance (T&M) strategy for I&C systems is more important then ever in this deregulated energy market. This paper presents a general T&M framework for digital I&C systems in NPPs. There are three main parts within this framework: probabilistic safety assessment (PSA), reliability analysis, and costs evaluation. PSA is used to set risk-informed unavailability limits. Reliability analysis is used to derive the relation between the unavailability and the T&M interval. Costs associated with not only T&M, but also reactor mal-shutdowns are evaluated. The Shutdown System Number One (SDSI) in Canadian Deuterium-Uranium (CANDU) based NPPs is used as an example system to illustrate the proposed framework.

PORTFOLIO MANAGEMENT OF THE ENERGY MARKET AT THE PUBLIC SECTOR LEVEL

2018 ◽  
Author(s):  
Igor Achkasov ◽  
◽  
Alina Zapryvoda ◽  
Keyword(s):  
Portfolio Management ◽  
Management System ◽  
Nuclear Power ◽  
Power Plants ◽  
Energy Market ◽  
The European Union ◽  
Energy Services ◽  
Market Pricing ◽  
Energy Supply System ◽  
Term Energy

The article analyzes the latest trends in the energy market of Ukraine. Among the main features of the energy market are a large number of stakeholders with different interests in the energy supply system, lack of coordination and systematization of their interaction, the inability of relevant government agencies to establish clear rules of the market and apply them in practice. The issue of tariff formation is singled out. Two systems of providing energy services and payment for used energy are considered. The imperfection of both methods has led to the formation of large debts in the industry, which has become especially acute in a pandemic. The analysis of the requirements for the energy services market identified the basic priorities that correspond to the possibilities of implementing the energy portfolio management system of projects. The project portfolio management system is defined as complex and conceptual. The priority directions of development of the portfolio of energy projects portfolio management are identified, namely increase of sales of energy produced by nuclear power plants, coordination of export-import operations in the energy sector, use of market pricing mechanisms and payment system for services, identification and search for long-term energy market goals. in Ukraine, adaptation of standards and norms of the domestic energy market to the standards and norms of the European Union in order to be able to enter new markets, development of effective mechanisms of social support for those who can not afford to pay for energy in full.

Distinctions and issues of choosing the discount rate for power engineering development forecasts

2020 ◽  
Vol 16 (12) ◽  
pp. 2254-2263
Author(s):  
Yu.D. Kononov ◽  
D.Yu. Kononov
Keyword(s):  
Discount Rate ◽  
Power Plants ◽  
Cash Flows ◽  
Power Engineering ◽  
Power Markets ◽  
Engineering Development ◽  
Development Scenarios ◽  
Complex Development ◽  
Long Term Forecasting ◽  
The Way

Subject. The article examines how the discount rate chosen influences the reasonableness of power engineering development forecasts. Economic-mathematical models of optimization serve as the main methodological tool for long-term forecasting on power engineering. Development scenarios are chosen and compared by the lowest amount of discounted cash flows for supplying fuel and energy as much as needed. Such models do not provide for generally accepted methods for substantiating values of the discount rate. Objectives. We identify distinctions in cost discounting, and results throughout phases of power engineering forecasting. We also evaluate how the discount rate chosen influences the outcome of forecasts. Methods. The study is based on the systems analysis of foreign and national practices and original methodological tools that concurrently optimizes the development of power engineering systems and uses the Monte-Carlo method. Results. The article substantiates that optimization models shall employ different approaches to discounting at different hierarchical levels of forecast studies into the fuel and energy complex development. Illustrating the optimization of the development of regional power supply systems, we demonstrate that the discount rate considerably influences the way capacities of power plants are put into operation, and other analyzable indicators. Conclusions and Relevance. Used to forecast the development of power engineering development, the discount rate depends on a future scenario in question. It is set with reference to the forecasted aspect, objectives and methods of forecast studies, the way they accommodate for the evolution of power markets. The more unlikely the future, the higher the risk component of the discount.

THE ROLE OF DIGITAL ATOMIC ENERGY IN THE WORLD ECONOMY

2020 ◽  
Vol 7 (3) ◽  
pp. 74-80
Author(s):  
Azizbek Nigmanov ◽  
Keyword(s):  
Nuclear Power ◽  
World Economy ◽  
Power Plants ◽  
Positive Impact ◽  
Energy Market ◽  
Accurate Information ◽  
The Status ◽  
New Generation ◽  
Energy Network

The article highlights the dominance of the digital economy and the great positive impact on the development of nuclear energy.In the new economy, the digital energy network or internet energy market is already taking shape. A digital nuclear power plant always has accurate information about the status of all assets and equipment. Most importantly, digital NPPs will have all the hallmarks of a modern dynamic business. The analysis opens up opportunities to change the business model, reduce costs, and find new sources of revenue. Thus, over time, the construction of nuclear power plants will lead to the formation of a new generation of markets for products and services, in contrast to nuclear products

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