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IAEC May 17, 2016 Regi Goodale Director of Regulatory Affairs - PowerPoint PPT Presentation

IAEC May 17, 2016 Regi Goodale Director of Regulatory Affairs Rate Design IAEC Role Rate Design Principles & Options Penetration of Synchronous Generators for IAEC Member Cooperatives Solar Generation relative to Electric


  1. IAEC May 17, 2016 Regi Goodale Director of Regulatory Affairs

  2. Rate Design • IAEC Role • Rate Design Principles & Options • Penetration of Synchronous Generators for IAEC Member Cooperatives • Solar Generation relative to Electric Cooperative peaks

  3. IAEC Role • Changing over time • PURPA Rate Making Standards • IUB Recommended Rate Making Standards

  4. Rate Design Principles & Options • PURPA Title 1 • Chapter 20

  5. Penetration of Synchronous Generators for IAEC Member Cooperatives 759 YTD Interconnections (through April 2016)

  6. Penetration of Synchronous Generators for IAEC Member Cooperatives

  7. Penetration of Synchronous Generators for IAEC Member Cooperatives

  8. 3 Part Rate Structures • Applicable to all customers (IPL Approach) • Applicable to only customers with DG- Prospective (MEC Approach)

  9. 85% of electric cooperative system peaks occur outside of the core solar generation window 500 5 450 4.5 Number of Monthly REC System Peaks 400 4 KW Generation Level in KW Typical 350 3.5 Residential 300 3 Customer Load 250 2.5 5 KW DC Solar Generator 200 2 150 1.5 REC Monthly 100 1 Peaks (2011- 2015) 50 0.5 0 0 12:00 AM 1:00 AM 2:00 AM 3:00 AM 4:00 AM 5:00 AM 6:00 AM 7:00 AM 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 1:00 PM 2:00 PM 3:00 PM 4:00 PM 5:00 PM 6:00 PM 7:00 PM 8:00 PM 9:00 PM 10:00 PM 11:00 PM Time of Day Sources: Typical Residential Customer Load Source: Iowa Utilities Board Docket NOI-2014-0001 5 KW DC Solar Generator Source: pvwatts.nrel.gov REC Monthly Peak Source: Iowa Utilities Board Utility Annual Reports

  10. • Questions?

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