Economic analysis of the distributed generation development in northern part of Hebei province

A microgrid is an excellent supplement for both urban and rural utility grids. It assists in the integration of different kinds of renewable and distributed generation and it has the potential to make the distribution system more flexible and reliable. A microgrid is a combination of two or several energy resources like natural gas, wind, photovoltaic, biomass or diesel generators. Different energy resources together with battery storage system can complement one another to provide a more continuous power output. Two microgrid prototypes are discussed and, optional configurations are estimated using the economic analysis tool HOMER. Economic benefits and greenhouse-gas emissions of microgrids are calculated and compared. Results show that microgrids with optimal sizing and operation can achieve both cost efficiency and lower emissions.

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Operation Analysis of Distribution Network with Distributed Generation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.441.231 ◽

2013 ◽

Vol 441 ◽

pp. 231-235

Author(s):

Jun Ting Yang ◽

Xiu Fan Ma ◽

Pei Pei Yang

Keyword(s):

Economic Analysis ◽

Distributed Generation ◽

Distribution Network ◽

Model Analysis ◽

Electricity Price ◽

Distributed Network ◽

Analysis Model ◽

Flow Calculation ◽

Operation Analysis ◽

Model Based

This article put forward with "DG optimization of the distribution network benefit " to measure the operating economy of distribution network containing DG and build an economic analysis model. Based on flow calculation, this model analysis the economic of distributed network with DG fully consider the various factors that have an impact on the economic of distribution network, such as line losses, transformer losses, electricity price and DG itself variable costs .Through the flow calculation and analysis, the feasibility of the model is validated.

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Electrical Power Characteristics and Economic Analysis of Distributed Generation System Using Renewable Energy: Applied to Iron and Steel Plants

Sustainability ◽

10.3390/su11226199 ◽

2019 ◽

Vol 11 (22) ◽

pp. 6199 ◽

Cited By ~ 1

Author(s):

Hee-Kwan Shin ◽

Jae-Min Cho ◽

Eul-Bum Lee

Keyword(s):

Economic Analysis ◽

Power System ◽

Output Power ◽

Distributed Generation ◽

Electrical Power ◽

Peak Load ◽

Environmental Issues ◽

Steel Plant ◽

Energy Utilization ◽

Iron And Steel

The intention of this paper is to respond to the increase in electric power demand and global environmental issues in iron and steel plants. In particular, the authors studied the characteristics of the power flow from a distributed generation (DG) system connected to the electrical power system of a steel plant. In addition, the authors carried out an economic analysis of the DG system by calculating the capital investment cost that could convert the profit of the DG into a certain profit. The research was conducted based on the power system configuration and basic data of a steel plant in operation in Korea. To analyze the unconnected DG of the power system, a transmission voltage target was set, and the voltage characteristics of 22.9 and 6.6 kV systems were analyzed. The authors analyzed the connected DG system in terms of the effect of link location, power factor, and output power by case. The authors also studied the power loss variation in the output power of a DG system. Various simulations with MATLAB software and NPV (Net Present Value) and IRR (Internal Rate of Return) methods were run in an economic analysis to compare the case of not introducing an energy storage system (ESS), and the case of introducing an ESS in terms of comprehensive energy utilization. The results of the economic analysis indicated that the scenario with ESS is more economically advantageous, resulting from the peak power reduction effect and the evasion cost due to the elimination of the power generation operation of the peak load. Developed countries have established best available technology (BAT) standards and developed related practices to apply them to industrial plants, actively preparing for environmental issues in the future. In Korea and in some other countries, the application of distributed generation in conjunction with the steel plant sector will be effective for improving energy efficiency and responding to environmental issues.

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