See BPM attached to this PRR
The proposed change involves five (5) existing versions of the Pre-calculation RTM Net Amount configuration that relate to five (5) distinct Trading Day Ranges, as indicated in the following table:
Version Title
Trading Day Range
Pre-calculation RTM Net Amount Version 5.22
05/01/2014 – 09/30/2014
Pre-calculation RTM Net Amount Version 5.23
10/01/2014 – 06/30/2015
Pre-calculation RTM Net Amount Version 5.24
07/01/2015 – 11/03/2015
Pre-calculation RTM Net Amount Version 5.25
11/04/2015 – 10/31/2016
Pre-calculation RTM Net Amount Version 5.26
11/01/2016 - Open
The proposed change introduces five (5) new versions of the Pre-calculation RTM Net Amount configuration that govern the same five (5) Trading Day Ranges listed in the prior section. The new versions are presented in the following table:
Pre-calculation RTM Net Amount Version 5.27
Pre-calculation RTM Net Amount Version 5.28
Pre-calculation RTM Net Amount Version 5.29
Pre-calculation RTM Net Amount Version 5.30
Pre-calculation RTM Net Amount Version 5.31
A market participant has entered a CIDI ticket that, upon ISO investigation, reveals that the current settlement configuration is incorrectly calculating the bid cost recovery-applicable energy bid cost for a given settlement Interval in the case where a resource is detected by means of the persistent deviation metric (PDM) to have been persistently deviating from its dispatch instructions over the twenty four (24) settlement Intervals of the two-hour PDM evaluation window for the given settlement Interval. For a deviating resource the configuration should determine and apply the energy bid cost as the minimum of the three (3) energy bid costs based on the Final Bid price, Default Energy Bid (DEB) price and the Locational Marginal Price (LMP). The configuration is overstating the LMP-based energy bid cost.
The reason for this is that the configuration is not excluding the minimum load energy in determining the LMP-based cost that is associated with the bid energy.
Unrelated to the above-mentioned configuration defect, another CIDI ticket points to an issue with the pricing of energy from a resource belonging to a net-settled metered subsystem (MSS) entity (i.e., a MSS that has selected the net settlement option) for a case where the bid price is missing for the energy. The configuration software is leaving the bid price as missing, effectively using a default value of zero (0) for bid cost calculations in which the bid price is applied. However, under certain conditions the MSS LMP should be used instead of 0.
The proposed revision specified by this PRR for the pre-calculation real-time market net amount BPM guide should allow the configuration to rectify the two (2) above-described defects concerning PDM-related bid cost minimization for BCR and a net-settled MSS entity’s missing bid price.
Calculations of successor pre-calculation or charge codes of the updated configuration are not impacted by the changes suggested herein. However, the results (data) of successor calculations will change due to differences between the output values of the current and proposed versions of the configurations.
It is proposed that the changes to resolve the two (2) identified defects be implemented and applied as follows:
PDM-related Defect:
Retroactively, effective starting with trading Ddy May 1, 2014 to capture all trading days over which the defect applies.
Net-settled MSS Missing Bid Price Defect:
Retroactively, effective starting with trading day November 1, 2016 to only correct configuration software that becomes effective on or subsequent to Trading Day November 1, 2016.