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Sun hours is one of the parameters used in Photovoltaic system design in determining whether installation of a solar system would be recommended for a particular region, with a minimum of 5 sun hours per day being a recommended standard. As a result, photovoltaic systems are preferably installed in areas with long sun hours and these invariably have high temperatures. However, studies carried out...
The combined management of vehicle-to-home and distributed generation can provide several benefits. Costs and benefits would differ depending on the technical requirements and the utilization profiles. In this study we use the EVLS model to simulate and analyze the dynamics that would occur in a hypothetical household provided with a vehicle-to-home system and a rooftop photovoltaic plant. The aim...
This paper applies Artificial Neural Network to predict the amount of energy generated by a Grid Connected Photovoltaic System installed at the Institute of Electrotechnic and Energy of University of S??o Paulo (IEE/USP). Irradiance, back cell temperature and power data were collected during the period of one year. This methodology allows performing an analysis of the production of Grid Connected...
We model a risk-sensitive investment strategy in renewable distributed generation. The risk arises from the uncertainty regarding what feed-in tariff (FIT) rates or payment structure may be adopted once an initial stable duration is over. We develop a scenario-based approach where investors can choose to follow a degree of risk aversion that best suits them. We show that FIT policies should ensure...
Since renewable sources, such as wind and solar power plants, suffer from their stochastic nature, their behavior on market is very delicate. In order to diversify the risk, a concept of virtual power plant is developed. The virtual power plant is consisted of several renewable energy sources and at least one conventional power plant. The production of renewable energy sources cannot be perfectly...
The Photovoltaic Arrays has a best optimal operating point. When operating at this location, the array will be most efficient in the production of electricity. However, the optimal operating point can be compromised by the strength of solar radiation, angle, environment and fluctuations in workload. Due to the constant changes in these conditions, it has become very difficult to locate the optimal...
Modelling of residential solar powered stand-alone power system comprising photovoltaic (PV) arrays, and a secondary battery is presented. Besides, an economic study is performed to determine the cost of electricity (COE) produced from this system so as to determine its competitiveness with the conventional sources of electricity. All of the calculations are performed using a computer code developed...
In order to settle the problem of blindness before installations of PV arrays, a methodology for precisely estimating the generation capacity of standalone photovoltaic (SPV) systems is investigated. The proposed model for the calculation process is based on the local solar radiation data and the system characteristics and thus has a better precision. A case study of a photovoltaic system by using...
The experimental system of photovoltaic window generation was installed on the test chamber. The mathematic model of photovoltaic module, used in an integrated building simulation tool ESP-r, was verified with the measured solar power. On the basis of the model validation, Photovoltaic window generation systems, used on facades of an office building located in Beijing, Shanghai and Hong Kong, were...
A well designed hybrid energy system can be cost effective, has a high reliability and can improve the quality of life in remote rural areas. The economic constraints can be met, if these systems are fundamentally well designed, use appropriate technology and make use effective dispatch control techniques. The first part of this tri-series paper, presents the analysis and design of a mixed integer...
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