See BPM attached to this PRR
In the 2018 June release, A fix was put in place to accommodate NCPA MSS LF resources that were coming from zero DA position who then are dispatched by the ISO in RTM. In this equation we would simply consider the ADS SUPP quantity to be the total IIE. Since the MSS Resources are coming from a 0 DA Position it was assumed that the SUPP Quantity will always be a positive value.
After this fix was introduced, New disputes were created. It has been found out that Negative SUPP quantity is being passed on from the Market to the Settlements system. To account for these scenarios the proposed solution is to add a Max function to this formula to suppress negative values from the SUPP quantity. These negative values are due to the State Estimator Solution.
BPM – MSS Deviation Penalty Quantity Precalculation 5.3.2 BPM – MSS Deviation Penalty Quantity Precalculation 5.4.1
We apply both changes to the above mentioned BPMs. The planned production deployment date is 3/27/2019, and the effective dates are as follows: 5.3.2 – 10/1/2014 – 11/1/2018 5.4.1 – 11/1/2018 – Open