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Analysis of the ERCOT IDR Threshold Requirement

Analysis of the ERCOT IDR Threshold Requirement. Presented by Bill Boswell PWG Meeting May 27, 2009. Analysis Methodology. Round 1 load research kWh data was used in the analysis.

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Analysis of the ERCOT IDR Threshold Requirement

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  1. Analysis of the ERCOT IDR Threshold Requirement Presented by Bill Boswell PWG Meeting May 27, 2009

  2. Analysis Methodology • Round 1 load research kWh data was used in the analysis. • The dollars were calculated by multiplying the kWh times the corresponding load weighted average MCPE for the corresponding LRS and profiled interval. • Domains Analysis was used to calculate the mean LRS kWh and dollars and mean profiled kWh and dollars for each domain. • A sample point was assigned to a domain when its 15 minute kWh peak fell in the domain range two times during the study period. The following three (3) domains were defined. • 0 – 300 kW => Domain 1 • 301 – 500 kW => Domain 2 • 501 – 700 kW => Domain 3

  3. Analysis Methodology • The profiled interval data for each sample point is calculated using the following procedure. • Sum the LRS intervals to get the daily kWh usage. • Select the profile such as BUSHILF COAST. • Calculate a scaling factor as : Scaling Factor = daily kWh usage / (total kWh profiled for day) • Scale the BUSHILF COAST profile to the usage for the ESIID by multiplying each interval of the standard BUSHILF COAST profile by the scaling factor.

  4. Analysis Methodology

  5. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 1 - August 8-14, 2005 COAST SOUTH SCENT NCENT

  6. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 1 - November 7-13, 2005 COAST SOUTH SCENT NCENT

  7. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 1 - January 23-29, 2005 COAST SOUTH SCENT NCENT

  8. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 1 - May 22-28, 2005 COAST SOUTH SCENT NCENT

  9. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 2 - August 8-14, 2005 COAST SOUTH SCENT NCENT

  10. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 2 - November 7-13, 2005 COAST SOUTH SCENT NCENT

  11. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 2 - January 23-29, 2005 COAST SOUTH SCENT NCENT

  12. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 2 - May 22-28, 2005 COAST SOUTH SCENT NCENT

  13. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 3 - August 8-14, 2005 COAST SOUTH SCENT NCENT

  14. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 3 - November 7-13, 2005 SOUTH COAST SCENT NCENT

  15. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 3 - January 23-29, 2006 COAST SOUTH SCENT NCENT

  16. 15 Min LRS kWh Means 15 Min Profiled kWh Means LRS kWh Intervals vs Profiled kWh Intervals Domain 3 - May 22-28, 2006 SOUTH COAST SCENT NCENT

  17. 15 Min LRS kWh Means 15 Min Profiled kWh Means Average Day Across the Study Period Domain 1 - COAST

  18. 15 Min LRS kWh Means 15 Min Profiled kWh Means Average Day Across the Study Period Domain 1 - NCENT

  19. 15 Min LRS kWh Means 15 Min Profiled kWh Means Average Day Across the Study PeriodDomain 2 - COAST

  20. 15 Min LRS kWh Means 15 Min Profiled kWh Means Average Day Across the Study Period Domain 2 - NCENT

  21. 15 Min LRS kWh Means 15 Min Profiled kWh Means Average Day Across the Study PeriodDomain 3 - COAST

  22. 15 Min LRS kWh Means 15 Min Profiled kWh Means Average Day Across the Study Period Domain 3 - NCENT

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