Photovoltaic Electric Power Generation from a Utility Perspective

1980 ◽  
Vol 102 (2) ◽  
pp. 142-149 ◽  
Author(s):  
F. R. Goodman
Keyword(s):  
Power Generation ◽  
Los Angeles ◽  
Electric Power ◽  
Direct Conversion ◽  
Development Effort ◽  
Photovoltaic Systems ◽  
Photovoltaic Devices ◽  
Advantages And Disadvantages ◽  
Dispersed Generation ◽  
Current Program

A substantial research and development effort is presently taking place on a worldwide basis to improve the viability of photovoltaic systems in terrestrial applications for direct conversion of sunlight to electricity. The utility-related applications of photovoltaic systems can be categorized as either centralized generation facilities or dispersed generation facilities. Technical, economic and other problems associated with utilizing photovoltaic systems in both application categories are discussed. The advantages and disadvantages of centralized versus dispersed generation are presented. The advantages and disadvantages of different photovoltaic devices for various applications are given. Factors which are expected to influence, either favorably or unfavorably, the future widespread deployment of photovoltaic systems in terrestrial applications are provided. The current program at the Los Angeles Department of Water and Power for assessing the potential future impacts of photovoltaic conversion is discussed.

scholarly journals Prediction model for day-ahead solar insolation using meteorological data for smart grid

2019 ◽  
Vol 111 ◽  
pp. 06040
Author(s):  
Min Hee Chung
Keyword(s):  
Power Generation ◽  
Prediction Model ◽  
Electric Power ◽  
Meteorological Data ◽  
Weather Data ◽  
Mean Bias Error ◽  
The Internet ◽  
Bias Error ◽  
Photovoltaic Systems ◽  
Internet Platform

In the overseas market, power generation and energy service companies have been engaged in the business of providing personalized trading services for the production of electric power through the Internet platform. This is, so that the electric power sharing system between individuals is being developed through the Internet platform. The prediction of insolation is essential for the prediction of power generation for photovoltaic systems. In this study, we present a prediction model for insolation from data observed at the Meteorological Administration. We also present basic data for the development of the insolation prediction model through meteorological parameters provided in future weather forecasts. The prediction model presented is for five years of observation of weather data in the Seoul area. The proposed model was trained by using the feed-forward neural networks, taking into account the daily climatic elements. To validate the reliability of the model, the root mean square error (RMSE), mean bias error (MBE), and mean absolute error (MAE) were used for estimation. The results of this study can be used to predict the solar power generation system and to provide basic information for trading generated output by photovoltaic systems.

scholarly journals Meteorological Variables’ Influence on Electric Power Generation for Photovoltaic Systems Located at Different Geographical Zones in Mexico

2019 ◽  
Vol 9 (8) ◽  
pp. 1649 ◽  
Author(s):  
Jose A. Ruz-Hernandez ◽  
Yasuhiro Matsumoto ◽  
Fernando Arellano-Valmaña ◽  
Nun Pitalúa-Díaz ◽  
Rafael Enrique Cabanillas-López ◽  
...  
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Mexico City ◽  
Estimation Error ◽  
Photovoltaic System ◽  
Meteorological Variables ◽  
Photovoltaic Systems ◽  
Gradient Descent Method ◽  
Electric Power Generation ◽  
The Real

In this study, the relation among different meteorological variables and the electrical power from photovoltaic systems located at different selected places in Mexico were presented. The data was collected from on-site real-time measurements from Mexico City and the State of Sonora. The statistical estimation by the gradient descent method demonstrated that solar radiation, outdoor temperature, wind speed, and daylight hour influenced the electric power generation when it was compared with the real power of each photovoltaic system. According to our results, 97.63% of the estimation results matched the real data for Sonora and 99.66% the results matched for Mexico City, achieving overall errors less than 7% and 2%, respectively. The results showed an acceptable performance since a satisfactory estimation error was achieved for the estimation of photovoltaic power with a high determination coefficient R2.

scholarly journals On electric power generation issues in ship electric propulsion systems

2021 ◽  
Vol 3 (397) ◽  
pp. 83-91
Author(s):  
S. Kazanov ◽  
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Electric Propulsion ◽  
State Of The Art ◽  
Power Conversion ◽  
Propulsion Systems ◽  
Electric Power Generation ◽  
Advantages And Disadvantages ◽  
Electric Power Generation Systems ◽  
Power Generation Systems

Object and purpose of research. The object and purpose of this study is generation of electric power for electric propulsion of ship and vessels; methods and problems, state-of-the-art and trend analysis are presented. Materials and methods. The main principles and methods of electric power generation using various generating and power conversion systems are briefly discussed. Their advantages and disadvantages are identified based on publication in this field. Main results. Achievements in the modern methods of power generation for ships, as well as ways of its transformation are highlighted. A detailed analysis of the state-of-the-art and trends in ship electric power generation is given. Various options of engines and generators are considered, including advanced types. Their characteristics are thoroughly analyzed based on the international publications. Conclusion. Conclusions are formulated regarding achievements and current problems in ship electric power generation systems.

scholarly journals The Resilience of the electric sector after COVID-19 and the impacts on the photovoltaic solar energy market

2021 ◽  
Vol 10 (2) ◽  
pp. 46
Author(s):  
Vânia Reis De Souza-Sant’Anna ◽  
Adriano Henrique Ferrarez ◽  
Maria Joselma De Moraes ◽  
Juan Carlos Solano-Jiménez
Keyword(s):  
Power Generation ◽  
Solar Energy ◽  
Electric Power ◽  
Electricity Consumption ◽  
Energy Market ◽  
Photovoltaic Systems ◽  
Solar Photovoltaic ◽  
Electric Power Generation ◽  
Electric Sector

INTRODUCTION. The Brazilian electricity sector and parts of society are experiencing the impacts of COVID-19, which spreads throughout the world, paralyzing all or part of its activities. The reduction in electricity consumption leads to an analysis of the stability of the Brazilian energy matrix that serves different social segments. OBJECTIVE. The objective of this work was to carry out an analysis of the electric power generation sector and its standardization, the perspectives of its post-Covid-19 behaviour and the role of renewable energy sources, in particular the photovoltaic industry. METHOD. An analysis was made of the electric power generation sector and its standardization, the prospects for its post-Covid-19 behaviour and the role of the solar photovoltaic systems. RESULTS. Scenarios evaluated: updating of the regulatory framework for the Brazilian electric sector, the solar energy market photovoltaic, electricity consumption and the solar photovoltaic systems as a complementary source in this climate change scenario. DISCUSSION AND CONCLUSIONS. It is concluded that sustainable transitions on the planet, associated with economic growth, promote human development for a low carbon community.

scholarly journals Optimization of the Midterm Electricity Generation Mix Considering the Effects of Water, Land and Carbon Footprints

10.29007/vpvk ◽  
2018 ◽  
Author(s):  
Mohsen Bozorg ◽  
Hamed Mazandarani Zadeh ◽  
Dragan Savic
Keyword(s):  
Power Generation ◽  
Power Consumption ◽  
Electric Power ◽  
Electricity Generation ◽  
Optimization Problem ◽  
Solar Thermal ◽  
Series Data ◽  
Electric Power Generation ◽  
Advantages And Disadvantages ◽  
Generation Capacity

Electric energy plays a key role in the development of modern societies. Each of the electric power generation technologies (e.g., hydroelectric, wind, solar, thermal, etc.) has some advantages and disadvantages with respect to the fundamental resource indicators, including water footprint, land footprint, carbon footprint, as well as electricity generation costs. Due to the shortage and frequent crisis associated with the above resources, optimal selection of the mix of electricity generation technologies is very important and the share of each technology in the capacity expansion of the generation system must be carefully defined. Iran is in an arid and semi-arid region, with less than one third of the average world precipitation. Moreover, the available water resources are restricted due to the water crises in the Middle-East region. In this paper, we first estimated the peak power consumption of Iran in 2024, based on the time-series data from 2004 to 2014. Then, we formulated an optimization problem to find the share of each electric power generation technology to cover the required extra generation capacity for supplying the power consumption in the target year 2024, considering the effect of the four aforementioned performance indicators. The optimization problem is solved using Genetic Algorithm. Numerical results show that in the target year, 20 GW of electricity should be added to the generation capacity. The results also show that, solar thermal and solar photovoltaic are the best electric generation technologies regarding the available resources.

scholarly journals The effect of the surface geometry of a photovoltaic battery on its efficiency

2020 ◽  
Vol 216 ◽  
pp. 01149
Author(s):  
Sanjar Shoguchkarov ◽  
Isroil Yuldoshev ◽  
Elyor Saitov ◽  
Alisher Boliev
Keyword(s):  
Power Generation ◽  
Electric Power ◽  
Horizontal Surface ◽  
Photovoltaic Systems ◽  
Surface Geometry ◽  
Electric Power Generation ◽  
Optimal Angle ◽  
Parking Lot ◽  
The City ◽  
Geometric Surface

Discusses the influence of the shape of the geometric surface of a photovoltaic battery (PVB) on its effectiveness. The features of photovoltaic systems based on silicon modules with different geometric shapes are considered. Expressions are given for determining the seasonal electric power generation of the PVB considering its surface geometry located in the parking lot, as well as calculations, are made to determine the optimal angle of inclination of the PVB to the horizontal surface under the conditions of the city of Tashkent.

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