الفهرس 
Definition of distributed generationOnly 14 pages are availabe for public view
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Abstract
Distributed generation (DG) attracts more attention internationally as a good alternative to large centralized generation plants, driven by the rapidly evolving liberalization and deregulation environments. This interest is also motivated by the need for eliminating the unnecessary transmission and distribution costs, reducing the greenhouse gas emissions, deferring capital costs and improving the availability and reliability of electrical networks.
Therefore, distributed generation is expected to play an increasingly important role in meeting future power generation requirements (is internationally expected to represent 20% - 30% of demand by 2020) and to provide consumers with flexible and cost effective solutions for many of their energy needs. The increasing demand for electrical power has created many challenges for the energy industry, which can affect the quality of the generated power in short and long terms. In recent years, Power Quality (PQ) assessment and improvement has been attracting a growing amount of attention. Egyptian Electricity Holding Company (EEHC) interests in minimizing the investment cost in generating power plants and in the transmission and distribution network costs, but in the same time, it has to supply electricity with good quality and efficient reliability. So it is the time to think about DG in our electrical system as a good, applicable and internationally wide spread solution.
Interruption as one of the power quality indices is discussed through a technical study for a customer load impact on the ”Interruption” with and without existence of DG units. Simulation study of Alexandria network as a part of the Egyptian unified power system is carried out using the ―Power System Simulator PSSE/29‖ software package. Many scenarios for customer load with and without existence of DG units for different types of faults are presented taking into consideration different type of fault scenarios as a sensitivity analysis.
Carrying out a technical and economic study application on typical isolated area, required to be reclaimed and cultivated taking into consideration the loads for the agriculture, the industries depend on the crops and the housing of the employee. Also, a break even analysis and the internal rate of return calculations have been carried out. How a customer could increase the efficiency of his DG unit which leads to increase the economics of the project through a case study is also discussed and analyzed. Results show the effectiveness of adding DG units in improving the quality of power system.