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Frequency of OOMC/E for ARRS < 2,500 MW. Examined 1/1 to 8/20/07 22,272 total intervals 793 intervals (3.56%)* with OOMC for ARRS < 2,500 MW. * Due to inconsistencies in ERCOT logs, there may be a small number of intervals with OOMC/E for ARRS < 2,500 that were not
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Frequency of OOMC/E for ARRS < 2,500 MW • Examined 1/1 to 8/20/07 • 22,272 total intervals • 793 intervals (3.56%)* with OOMC for ARRS < 2,500 MW * Due to inconsistencies in ERCOT logs, there may be a small number of intervals with OOMC/E for ARRS < 2,500 that were not captured in this list.
Effect of Administrative PricingJan. 1 – Aug. 20, 2007 • Used original MCPEs with price corrections as base case • Applied $150/MWh floor to intervals with OOMC/E for ARRS < 2,500 and no zonal congestion as change case • MCPEs are zonal load-weighted averages 5% Increase 49% Increase