Dear Market Participants:  Methodology used in developing the NYISO Virtual Bidding Credit Requirements:  Day Ahead Market Hourly Zonal LBMP and Real Time Market Integrated Hourly Zonal LBMP values were used as the data source for developing the NYISO Virtual Bidding Credit Requirements.
These values are available on the NYISO web site.
The time period of June 1, 2001 through August 31, 2001 was used.
Peak hours are defined here as the hours of 6am (06:00) through and including 10pm (22:00).
The absolute value of the difference of the DAM and R/T price was calculated for each peak hour.
The 97th percentile of these series of prices was calculated for each zone.
The maximum of these zonal 97th percentiles was calculated to be $159.33.
The data manipulation and calculation was performed in MS Excel.
The attached spreadsheet contains the data used in the June 2001 to August 2001 calculations.
(See attached file: Virt Bidding Credit Req data.xls)   Please contact the Customer Relations department with any questions.
Regards,

Virtual Bidding - data release
Dear Market Participants: Methodology used in developing the NYISO Virtual Bidding Credit Requirements: Day Ahead Market Hourly Zonal LBMP and Real Time Market Integrated Hourly Zonal LBMP values were used as the data source for developing the NYISO Virtual Bidding Credit Requirements.
These values are available on the NYISO web site.
The time period of June <NUMBER>, <NUMBER> through August <NUMBER>, <NUMBER> was used.
Peak hours are defined here as the hours of 0am (<NUMBER>:<NUMBER>) through and including 00pm (<NUMBER>:<NUMBER>).
The absolute value of the difference of the DAM and R/T price was calculated for each peak hour.
The 00th percentile of these series of prices was calculated for each zone.
The maximum of these zonal 00th percentiles was calculated to be <CUR><NUMBER>.
The data manipulation and calculation was performed in MS Excel.
The attached spreadsheet contains the data used in the June <NUMBER> to August <NUMBER> calculations.
(See attached file: Virt Bidding Credit Req data.xls) Please contact the Customer Relations department with any questions.
Regards,
attached file virt hours 0am contains maximum zonal data source developing nyiso virtual bidding lbmp values credit requirements time period june