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A new methodology is proposed for the analysis of generation capacity investment in a deregulated market environment. This methodology proposes to make the investment appraisal using a probabilistic framework. The probabilistic production simulation (PPC) algorithm is used to compute the expected energy generated, taking into account system load variations and plant forced outage rates, while the...
Load forecast (LF) is the prediction of the system load over a defined time interval that ranges from one hour to one week for power system operation purposes. Due to the random nature of the load and its dependency on numerous factors forecasting is never 100% accurate. Inaccuracies in the LF lead to inefficient daily system operation. On the one hand, if at a given period the load is under-forecasted...
Summary form only given. This work presents a methodology for designing optimal metering systems for real-time power system monitoring, taking into account different topologies that the network may experiment. Genetic algorithms are employed to achieve a trade-off between investment costs and reliability of the state estimation process under many different topology scenarios. This is done by formulating...
Transmission lines play an important role in providing all participants the access to supply and demand in a competitive electricity market. Market size could be limited by the physical ability of transmission network to deliver electricity. Transmission line congestion as a primary indicator for transmission expansion planning has been investigated in this paper. The calculation on congestion cost...
Throughout the world significant development is being encouraged in wind energy for electricity generation. A complete cost and benefit analysis has been conducted in this paper on grid connected wind generation. It takes into account system costs such as reserve requirements, start-up and ramping implications for conventional plants as well as wear and tear costs. The benefits of wind generation...
A methodology is proposed for the techno-economic assessment of a biomass power plant. The economic aspects of the assessment involve determining the economically optimal size of a given biomass power plant depending on resource related costs and, in turn, the economic viability of the project. The technical aspects of the assessment check for the possibility that, in the given distribution network,...
Transmission plays a critical role in competitive electricity markets as the underlying infrastructure which enables the robust functioning of such markets. Comprehensive regional planning for both reliability and economic purposes is necessary to ensure that cost-effective, regulated transmission is built should market projects not come forward in a timely manner to avoid prolonged, high costs for...
Two developments are having an impact on power system planning in the Northeastern U.S.: a seven-state regional CO2 emissions cap and the growth of renewables from renewable portfolio standards (RPS). The CO2 cap will increase energy costs of fossil units and could affect reliability. RPS provides targets for renewable energy supply by the load serving entities and are resulting in mostly remote installations...
In a competitive environment the rule of the Independent System Operator (ISO) is to provide a non discriminatory access and services to all the market participants, maintaining a good level of reliability. At the same time, the planners have a lot of constraints and uncertainties associated to competitive environment. In this context transmission system expansion planning (TSEP) becomes more complex...
This paper discusses the role and benefits of avoiding GHG emissions, and of deploying and promoting "emissions free" energy technologies. The projected needs, market penetrations and transition strategies for non-carbon sources to stabilize atmospheric concentrations of GHGs were examined, including estimates of the benefits and impacts on future atmospheric concentrations, climate change...
This paper presents a new method for allocating embedded cost of transmission to its users, through power pool and transactions under deregulated environment of power system. The proposed method allocates the embedded cost of transmission facilities among its users in a non-discriminatory manner and provides the correct economical signals in a simplest possible way. Many problems of the existing methods...
Congestion in lines forces electricity markets to operate with a costlier generation schedule. It is essential to charge the loads responsible for congestion appropriately. This paper proposes a method to allocate congestion costs to loads and calculate incremental congestion costs. This method quantifies the impact of congested lines on optimal generation costs by computing a newly proposed line...
In the present regulation of electricity sector, the distribution companies, acting as the electricity public system (SEP) supplier, can promote demand side management (DSM) measures. In order to promote the implementation of these measures, the Tariff Code establishes that the implementation costs of a measure and half of the net benefits will be reflected in the SEP supply tariffs. In this paper...
This paper proposes an optimization procedure of generation placement for long-term generation adequacy planning in multi-area power systems. The desired location is expected to yield a favorable trade off between system reliability and cost. The concept of global decomposition is used for system reliability evaluation component. The prospective generation locations are pre-selected but the magnitude...
The restoration process can be defined as the control actions sequence necessary to reenergize power lines and loads in a rapid and safe way, after a disturbance in power supply. In this work, a methodology to identify restoration building blocks (nuclear elements of the restoration process) is proposed. This method is based on the numerical inspection of a nodal matrix associated to heuristic search...
This paper addresses some of the modeling and economic issues pertaining to the optimal reactive power planning of radial distribution systems with distributed generation. When wind power generation (WPG) units are installed in a distribution system, they may cause reverse power flows and voltage variations due to the random-like outputs of wind turbines. To solve this problem, we introduce static...
Diesel generation units are not often considered for replacement before they reach the manufacturer's recommended life, and sometimes only after it runs to failure. Although this can take better advantage of the unit life, it may not be the most cost effective strategy considering the fact that aging units often have higher operation and maintenance costs, and undesirable reliability consequences...
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