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Integration of Variable Generation Task Force Preliminary Conclusions and Actions. Owners, Operators, and Users. 2005 Energy Policy Act: All users, owners, and operators of the bulk-power system shall comply with reliability standards FERC Rule

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owners operators and users
Owners, Operators, and Users
  • 2005 Energy Policy Act:
    • All users, owners, and operators of the bulk-power system shall comply with reliability standards
  • FERC Rule
    • All entities subject to the Commission’s reliability jurisdiction… (users, owners, and operators of the bulk-power system) shall comply with applicable Reliability Standards …
north american electric reliability corporation nerc
North American Electric Reliability Corporation (NERC)

Mission:“To ensure the reliability of the North American bulk power system”

  • Formed in 1968
  • U.S. Electric Reliability Organization
  • Working to gain similar recognition in Canada
electric reliability organization overview
Electric Reliability Organization Overview


NEB, Alberta, British Columbia, Manitoba, Ontario, New Brunswick, Nova Scotia, Quebec, and Saskatchewan

United States

Federal Energy Regulatory Commission


Comision Reguladora

de Energia



Government Oversight



Electric Reliability




Reliability Assessment

Other ERO Members

Bulk Power System Owners, Operators, Users

integration of variable generation task force ivgtf scope
Integration of Variable Generation Task Force (IVGTF) Scope
  • The Task Force will prepare:
    • A concepts document: philosophical & technical considerations
    • Recommendations: practices, requirements & reliability standards
  • The document will include:
    • Planning timeframe issues
    • Operational Planning and Real-time Operating timeframe issues
    • Review NERC Standards for gaps
    • Review of future developments: i.e. storage, EHV
    • Conclusions and recommendations
ivgtf status report
IVGTF Status Report
  • Draft Summary Report prepared
  • Comments received from the IVGTF members
  • Meeting held in August
    • Finalize recommendations and actions
    • Editorial meeting on Summary Report
  • Coordination with UCTE-EWIS
keeping reliability in the balance
Keeping Reliability in the Balance
  • Bulk power system reliability must be maintained
  • All generation must contribute to system reliability
  • Standards must be fair, transparent & performance-based
  • Planners & operators must understand the challenges of large scale variable generation integration
  • Variable generation integrated into planning & operations
  • New Planning/operating tool requirements described in terms of bulk power system reliability performance
enhancements resource categories
Enhancements: Resource Categories

* This slide is a simulation of the categories and does not reflect actual data

2008 key finding wind substantially increases
2008 Key Finding:Wind Substantially Increases
  • 140,000 MW of wind to be added in coming 10 years
  • Capacity available on peak ranges from 8.7% to 26%
what must change
What Must Change?


  • Consistent methods for energy & capacity
  • Add Probabilistic Expansion Analysis
  • Design Flexibility during Resource & Transmission Planning
  • System Design must consider Variable Distributed Resources
  • PHEVs, storage & demand response provide additional resource flexibility
  • Standard, generic power flow and stability models required
  • Reference Manual for Planners on how to Integrate Variable Generation.
what must change13
What Must Change?


  • Forecasting should be incorporated into operations
  • Larger Balancing Areas impact on Reliability requires Study
  • Enhanced Grid Codes required:
    • Voltage & Frequency Ride-Thru
    • Reactive & Real Power Control
    • Frequency & Inertial Response
  • Balancing Authorities must have Communications and Control of Variable Resources
  • Write a Reference Manual for Operators on how to Integrate into Operations.
detailed recommendations work plan
Detailed Recommendations & Work Plan
  • Specific Activities Outlined
    • Three year plan
    • Suggested Assignments
      • Reports
      • Standards Review/Creation
      • Industry Coordination
  • Sufficient IVGTF Stakeholder Participation to Complete the Activities
  • Draft Report is posted at

emerging issues
Emerging Issues
  • Greenhouse Gas Reductions
  • Increased Demand-Side & Distributed Generation Resources
  • Rising Global Demand for Energy & Equipment
  • Fuel Storage & Transportation

6-10 Years

1-5 Years

Mercury Regulation

Transmission of the 21st Century

Limited Water Availability