North Itasca Electric Co-operative, Inc

Summer 2012 Load Management Plan

The following is a summary of Great River Energy's summer load management plan as presented to the member services managers on March 27. The first day under this control strategy will be Friday, June 1, 2012 and the last day will be Friday, August 31, 2012.

Please note that the control times are not absolute as there will be a window of time around both the shed and restore times to allow for smoothing the impact of load control. GRE may alter these plans in response to drastic temperature variances, unexpected plant outages and/or MISO (Midwest Independent System Operator) emergencies.

  1. Interruptible Commercial and Industrial - with and without gensets

    1. Total estimated summer control = 60 hours
    2. Control limits = Maximum of 10 hours/day (or 6 hours/day without genset)
    3. Predefined load control periods
      1. None
    4. Other load control periods
      1. Potential GRE billing peak
      2. Critical peak pricing periods
      3. High MISO market prices
      4. As needed


  2. Interruptible Irrigation

    1. Total estimated summer control = 65 hours
    2. Control limits = Maximum of 4 hours/day
      1. North and South at 4-8 p.m. or expected GRE billing peak hour
    3. Predefined load control periods
      1. None
    4. Other load control periods
      1. Potential GRE billing peak
      2. Critical peak pricing periods
      3. High MISO market prices
      4. As needed


  3. Interruptible Air Conditioning (formerly Cycled Air Conditioning)

    1. Total estimated summer control = 100 hours
    2. Control limits = Maximum of 6 hours/day
    3. Predefined load control periods
      1. None
    4. Other load control periods
      1. Potential GRE billing peak
      2. Critical peak pricing periods
      3. High MISO market prices
      4. As needed


  4. Interruptible Water Heating - 4 hour (formerly Peak Shave Water Heating)

    1. Total estimated summer control = 100 hours
    2. Control limits = Maximum of 4 hours/day
    3. Other load control periods
      1. Potential GRE billing peak
      2. Critical peak pricing periods
      3. High MISO market prices
      4. As needed


  5. Interruptible Water Heating - 8 hour (formerly Peak Shave Water Heating)

    1. Total estimated summer control = 150 hours
    2. Control limits = Maximum of 8 hours/day
    3. Other load control periods
      1. Potential GRE billing peak
      2. Critical peak pricing periods
      3. High MISO market prices
      4. As needed





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