Distributed Generation and Demand Side Management: Aspects and Opportunities:

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Distributed Generation and Demand Side Management: Aspects and Opportunities:

Distributed Generation and Demand Side Management: Aspects and Opportunities:

  1. 1. Distributed Generation and Demand Side Management .....Aspects and Opportunities Author:Shahina Perveen 1
  2. 2. Proposal on Distributed Generation and Demand Side Management: Aspects and Opportunities   Author:Shahina Perveen 2
  3. 3. Agenda BACKGROUND SCENARIOS FOR PROVISION OF ELECTRICITY RATIONAL OF STUDY PROJECT OBJECTIVE METHOD & SCOPE OF STUDY EXPECTED OUTCOMES LIMITATION OF THE STUDY REFERENCE Author:Shahina Perveen 3
  4. 4. BACKGROUND ENERGY RESOURCES COAL + NATUAL GAS + GASOLEINE + ELECTRICITY Easily be generated, transported, distributed, & consumed Easily be converted to other forms of energies Easily be controlled % of electricity energy consumption has been increasing continuously to other forms Author:Shahina Perveen 4
  5. 5. SCENARIO FOR PROVISION OF ELECTCITY 3 OPTION FOR ELECTRICITY 1 2 3 STAND ALONE SYSTEM UTILITY NETWORK GRID CONNECTION DISTRIBUTED GRID CONNECTION Author:Shahina Perveen 5
  6. 6. STAND ALONE SYSTEM SAS Not connected to the electricity grid & of small Capacity. SAS involves the use of renewable energy power source to maintain adequate level of charge in an electrical storage battery to provide electricity on demand for electrical applications. Larger SAS include a diesel generator to ensure that the batteries are always charged and that power availability is high. This involves the use of a wind turbine with, at least, a diesel generator, which will automatically supply power when required Author:Shahina Perveen 6
  7. 7. UTILITY NETWORK GRID UGN, established electricity systems tend to rely on centralized generation from large plants, which are often some distance from the point of use (transmission and distribution system). The power transported over transmission lines to “passive” distribution networks which deliver the power to the end-user. The development of transformers and the adoption of high voltage transmission lines using alternating current allowed lines to transmit power over longer distances. Larger plants could be built allowing economies of scale in generation. Universal supply became possible, and politically and economically desirable. Author:Shahina Perveen 7
  8. 8. DISTRIBUTION GENERATION DG is the decentralized power plants, effectively larger stand-alone systems, which supply power to isolated groups of householders, communities or even larger groupings. They involve a local grid- network for the supply of power. Distributed generation can provide more cost- effective electrification than grid-extension. Author:Shahina Perveen 8
  9. 9. RATIONAL OF STUDY Current Scenario of Electricity Supply The utility grid network of the centralized generation is a common scenario to supply electricity throughout the world; Level of power supplied to the utility grid network is often not sufficient to meet demand; Priority is invariably given to the larger cities, which subsequently results in supplying electricity to rural areas; Frequently of an inferior quality, with frequent load shedding at peak hours. Author:Shahina Perveen 9
  10. 10. RATIONAL OF STUDY DEMAND SIDE MANAGEMENT (DSM) DSM can help to overcome this problem!! Demand Side Management (DSM) can play a vital role in reducing electricity demand and is widely implemented throughout the world; DSM is defined as “the planning and implementation of strategies designed to encourage consumers to improve energy efficiency, reduce energy costs, change the time of usage, or promote the use of different energy source Deferring new network investment, Increasing the amount of distributed generation, Relieving voltage-constrained power transfer problems, Relieving congestion in distribution substations, Simplifying outage management and enhancing the quality and security of supply to critical-load customers, Providing corresponding carbon emission reduction Potential Benefit of DSM Author:Shahina Perveen 10
  11. 11. RATIONAL OF STUDY CONT DISTRIBUTED GENERATION (DG) Increasing allocation of distributed generation attributed to the followings: Demand Side Management Rural Electrification Utilization of Renewable Energy Resources Technology improvement, energy market liberalization, and environmental issues has encouraged the growth of distributed generation. Author:Shahina Perveen 11
  12. 12. RATIONAL OF STUDY Issues of DG in Distribution System Centralized Generation and DG Centralized Generation Passive Network Active Network Source: Adaptive intelligent power systems: Active distribution networks, Professor Jim Mcdonald, University of Strathclyde Author:Shahina Perveen 12
  13. 13. RATIONAL OF STUDY Issues of DG in Distribution System “Active” distribution network needs a greater degree of control, including control of distributed generation reactive power; Increasing pressures on distribution networks to cope with new system stability, power-quality and network-operational challenge; The main barriers in distribution system is the voltage rise effect, which reduce the available voltage band and thus limits the capacity, which can be connected. Author:Shahina Perveen 13
  14. 14. RATIONAL OF STUDY Issues of DG in Distribution System “Active” distribution network needs a greater degree of control, including control of distributed generation reactive power; Increasing pressures on distribution networks to cope with new system stability, power-quality and network-operational challenge; The main barriers in distribution system is the voltage rise effect, which reduce the available voltage band and thus limits the capacity, which can be connected. Author:Shahina Perveen 14
  15. 15. RATIONAL OF STUDY DGM & DSM Active management of the distribution networks in the future; The demand side management can help to reduce the voltage rise effects; In this regard, distributed generation and demand side management actions should become options that distributors have to consider in order to solve electric supply problems from distributed generation. Author:Shahina Perveen 15
  16. 16. PROJECT OBJECTIVE OBJECTIVE Identify causes and the need to integrate the demand side management in distributed generation Identify how demand side management policies can be integrated in distributed generation and be implemented as a valid opportunity to facilitate the development of DG ina given distribution system Identify potential benefits of integration the demand side management in distributed generation Recommendation Author:Shahina Perveen 16
  17. 17. METHODOLOGY OF STUDY REVIEW AND ANALYSE INFORMATION DEVELOP BASIC UNDERSTANDING OF THE CONSTRAINTS DEVELOP UNDERSTANDING OF THE impacts on integrating distributed generation in the distribution system EVALUATE AND ANALYSE THE ACHIEVEMENT OF INTERGRATION Author:Shahina Perveen 17
  18. 18. EXPECTED OUTCOME & LIMITATIONS EXPECTED OUTCOMES LIMITATTIONS LIMITED TIME AND MOBILITY LACK OF PRIMARY DATA STUDY IS BASED ON SECONDARY DATA SOURCE Author:Shahina Perveen 18
  19. 19. Reference GoranStrbac (2008). Demand side management: Benefits and challenges. Energy Policy, 36, 4419–4426.   Thomas Ackermann, GoranAndersson, LennartSoder (2001). Distributed generation: a definition. Electric Power Systems Research, 57, 195–204   Sustainable energy regulation and policy making training manual, module 11 distributed generation: options and approaches. Web Site http://www.unido.org/fileadmin/media/documents/pdf/EEU_Training_Package/Module11.pdf   Helfried Brunner, Roland Bruendlinger (2005). Improvement of power quality and capability of connecting distributed generation in distribution network by power- and demand side management. Paper for European conference and cooperation exchange on sustainable energy systems for building and region 2005. Web site http://www.arsenal.ac.at/downloads/Publikationen/2005/121_EET_Improvement%20Power%20Quality_2005.pdf   Jim McDonald, Adaptive intelligent power systems: active distribution networks. Web site http://www.foresight.gov.uk/Energy/adaptive_intelligent_power_systems_active_distribution_networks.pdf Author:Shahina Perveen 19
  20. 20. Thank You Author:Shahina Perveen 20

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