The Experts below are selected from a list of 41385 Experts worldwide ranked by ideXlab platform

J K Kaldellis - One of the best experts on this subject based on the ideXlab platform.

  • optimum sizing of photovoltaic energy storage systems for autonomous small islands
    International Journal of Electrical Power & Energy Systems, 2010
    Co-Authors: J K Kaldellis, Dimitrios Zafirakis, E Kondili
    Abstract:

    The electrification of autonomous electrical networks is in most cases described by low quality of Electricity available at very high production Cost. Furthermore, autonomous electrical networks are subject to strict constraints posing serious limitations on the absorption of RES-based Electricity Generation. To by-pass these constraints and also secure a more sustainable Electricity supply status, the concept of combining photovoltaic power stations and energy storage systems comprises a promising solution for small scaled autonomous electrical networks, increasing the reliability of the local network as well. In this context, the present study is devoted to develop a complete methodology, able to define the dimensions of an autonomous Electricity Generation system based on the maximum available solar potential exploitation at minimum Electricity Generation Cost. In addition special emphasis is given in order to select the most Cost-efficient energy storage configuration available. According to the calculation results obtained, one may clearly state that an optimum sizing combination of a PV generator along with an appropriate energy storage system may significantly contribute on reducing the Electricity Generation Cost in several island electrical systems, providing also abundant and high quality Electricity without the environmental and macroeconomic impacts of the oil-based thermal power stations.

  • Cost benefit analysis of a photovoltaic energy storage electrification solution for remote islands
    Renewable Energy, 2009
    Co-Authors: J K Kaldellis, Dimitrios Zafirakis, El Kaldelli, K A Kavadias
    Abstract:

    Abstract A large number of various sized islands are spread throughout the south-east Mediterranean Sea. Most of these small islands face serious infrastructure problems, like the insufficient power supply and the low quality of Electricity available at very high production Cost. In an attempt to improve the life quality of all these isolated communities, an investigation concerning the financial viability of an integrated electrification solution based on one or more photovoltaic generators and an appropriate energy storage system is described. The main target of a similar solution is to maximize the contribution of the photovoltaic generator and minimize the life-cycle Electricity Generation Cost of the remote island networks investigated. In addition, special emphasis is given in order to select the most Cost-efficient energy storage configuration available. According to the results obtained for high and medium–high solar potential regions, the proposed configuration is found to be more Cost-effective than the existing thermal power stations. Several side benefits like the improved electrical network reliability and the minimization of the environmental and macroeconomic impacts resulting from the replacement of the imported oil should also be considered.

  • integrated electrification solution for autonomous electrical networks on the basis of res and energy storage configurations
    Energy Conversion and Management, 2008
    Co-Authors: J K Kaldellis
    Abstract:

    Most medium and small islands of the Aegean Archipelagos face serious infrastructure problems, strongly related with the limited electrical energy available at extremely high Cost. On the other hand, the area is characterized by very high wind speeds and abundant solar energy, thus the exploitation of the available renewable energy sources (RES) may significantly contribute to the fulfillment of the local societies energy demand at minimum environmental and macroeconomic Cost. However, the stochastic availability of wind energy and the variable availability of solar energy, the daily and seasonal Electricity demand fluctuations, as well as the limited local electrical network capacity result in serious restrictions concerning the maximum renewable power penetration. In this context, the present paper investigates the possibility of creating a combined Electricity Generation facility based on the exploitation of wind or/and solar potential of an area as well as on the utilization of an appropriate energy storage configuration in order to replace the existing thermal power stations with rational investment requirements. For this purpose, the major parameters of the proposed integrated configuration are firstly calculated and its financial viability is accordingly analyzed. One of the main targets of the proposed solution is to maximize the RES exploitation of the area at a minimum Electricity Generation Cost, while special emphasis is given in order to select the most Cost-efficient energy storage device available. According to the results obtained the proposed solution is not only financially attractive but also improves the quality of the Electricity offered to the local communities, substituting the expensive and heavily polluting existing thermal power stations.

K A Kavadias - One of the best experts on this subject based on the ideXlab platform.

  • Cost benefit analysis of a photovoltaic energy storage electrification solution for remote islands
    Renewable Energy, 2009
    Co-Authors: J K Kaldellis, Dimitrios Zafirakis, El Kaldelli, K A Kavadias
    Abstract:

    Abstract A large number of various sized islands are spread throughout the south-east Mediterranean Sea. Most of these small islands face serious infrastructure problems, like the insufficient power supply and the low quality of Electricity available at very high production Cost. In an attempt to improve the life quality of all these isolated communities, an investigation concerning the financial viability of an integrated electrification solution based on one or more photovoltaic generators and an appropriate energy storage system is described. The main target of a similar solution is to maximize the contribution of the photovoltaic generator and minimize the life-cycle Electricity Generation Cost of the remote island networks investigated. In addition, special emphasis is given in order to select the most Cost-efficient energy storage configuration available. According to the results obtained for high and medium–high solar potential regions, the proposed configuration is found to be more Cost-effective than the existing thermal power stations. Several side benefits like the improved electrical network reliability and the minimization of the environmental and macroeconomic impacts resulting from the replacement of the imported oil should also be considered.

Dimitrios Zafirakis - One of the best experts on this subject based on the ideXlab platform.

  • optimum sizing of photovoltaic energy storage systems for autonomous small islands
    International Journal of Electrical Power & Energy Systems, 2010
    Co-Authors: J K Kaldellis, Dimitrios Zafirakis, E Kondili
    Abstract:

    The electrification of autonomous electrical networks is in most cases described by low quality of Electricity available at very high production Cost. Furthermore, autonomous electrical networks are subject to strict constraints posing serious limitations on the absorption of RES-based Electricity Generation. To by-pass these constraints and also secure a more sustainable Electricity supply status, the concept of combining photovoltaic power stations and energy storage systems comprises a promising solution for small scaled autonomous electrical networks, increasing the reliability of the local network as well. In this context, the present study is devoted to develop a complete methodology, able to define the dimensions of an autonomous Electricity Generation system based on the maximum available solar potential exploitation at minimum Electricity Generation Cost. In addition special emphasis is given in order to select the most Cost-efficient energy storage configuration available. According to the calculation results obtained, one may clearly state that an optimum sizing combination of a PV generator along with an appropriate energy storage system may significantly contribute on reducing the Electricity Generation Cost in several island electrical systems, providing also abundant and high quality Electricity without the environmental and macroeconomic impacts of the oil-based thermal power stations.

  • Cost benefit analysis of a photovoltaic energy storage electrification solution for remote islands
    Renewable Energy, 2009
    Co-Authors: J K Kaldellis, Dimitrios Zafirakis, El Kaldelli, K A Kavadias
    Abstract:

    Abstract A large number of various sized islands are spread throughout the south-east Mediterranean Sea. Most of these small islands face serious infrastructure problems, like the insufficient power supply and the low quality of Electricity available at very high production Cost. In an attempt to improve the life quality of all these isolated communities, an investigation concerning the financial viability of an integrated electrification solution based on one or more photovoltaic generators and an appropriate energy storage system is described. The main target of a similar solution is to maximize the contribution of the photovoltaic generator and minimize the life-cycle Electricity Generation Cost of the remote island networks investigated. In addition, special emphasis is given in order to select the most Cost-efficient energy storage configuration available. According to the results obtained for high and medium–high solar potential regions, the proposed configuration is found to be more Cost-effective than the existing thermal power stations. Several side benefits like the improved electrical network reliability and the minimization of the environmental and macroeconomic impacts resulting from the replacement of the imported oil should also be considered.

E Kondili - One of the best experts on this subject based on the ideXlab platform.

  • optimum sizing of photovoltaic energy storage systems for autonomous small islands
    International Journal of Electrical Power & Energy Systems, 2010
    Co-Authors: J K Kaldellis, Dimitrios Zafirakis, E Kondili
    Abstract:

    The electrification of autonomous electrical networks is in most cases described by low quality of Electricity available at very high production Cost. Furthermore, autonomous electrical networks are subject to strict constraints posing serious limitations on the absorption of RES-based Electricity Generation. To by-pass these constraints and also secure a more sustainable Electricity supply status, the concept of combining photovoltaic power stations and energy storage systems comprises a promising solution for small scaled autonomous electrical networks, increasing the reliability of the local network as well. In this context, the present study is devoted to develop a complete methodology, able to define the dimensions of an autonomous Electricity Generation system based on the maximum available solar potential exploitation at minimum Electricity Generation Cost. In addition special emphasis is given in order to select the most Cost-efficient energy storage configuration available. According to the calculation results obtained, one may clearly state that an optimum sizing combination of a PV generator along with an appropriate energy storage system may significantly contribute on reducing the Electricity Generation Cost in several island electrical systems, providing also abundant and high quality Electricity without the environmental and macroeconomic impacts of the oil-based thermal power stations.

Nabil Alrajeh - One of the best experts on this subject based on the ideXlab platform.

  • a generic demand side management model for smart grid
    International Journal of Energy Research, 2015
    Co-Authors: Muhammad Asghar Khan, Nadeem Javaid, Anzar Mahmood, Zahoor Ali Khan, Nabil Alrajeh
    Abstract:

    The demand-side management (DSM) is one of the most important aspects in future smart grids: towards Electricity Generation Cost by minimizing the expensive thermal peak power plants. The DSM greatly affects the individual users’ Cost and per unit Cost. The main objective of this research article is to develop a generic demand-side management (G-DSM) model for residential users to reduce peak-to-average ratio (PAR), total energy Cost, and waiting time of appliances (WTA) along with fast execution of the proposed algorithm. We propose a system architecture and mathematical formulation for total energy Cost minimization, PAR reduction, and WTA. The G-DSM model is based on genetic algorithm (GA) for appliances scheduling and considers 20 users having a combination of appliances with different operational characteristics. Simulation results show the effectiveness of G-DSM model for both single and multiple user scenarios. Copyright © 2015 John Wiley & Sons, Ltd.