Message header containing descriptive information about the message. Application level relevant time and date for when this instance of the message was produced. Source system that publishes the message. For CAISO, examples include ADS, ALFS, CAP, CRR, EMS, ETCC, FNM, IFM, MF, PI, RLC, RTM, SaMC, SIBR, SLIC, etc. This class captures group-by attributes used by MPs to retrieve or submit RTDs (Generator or Intertie RTDs) This class represents the inter tie resource MRID stands for master resource identifier which should be globally unique. An identifier of a resource that has a must offer obligation, either due to a RA obligation or through other obligation (ie future capacity market procurement, RCST, etc.) Must Offer Obligation Qualified Flag: Y - Resource is Must Offer N - Resource is not Must Offer R - Resource is eligible for Must Offer based on RA Capacity or RCST designation in any given trading hour An identifier of a resource that is under the Resource Adeqacy (RA) program. Under each major product type, the commodity type can be applied to further specify the type. Possible values are but not limited to: a) Firm Energy ("FIRM") b) Non-Firm Energy ("NFRM") c) Dynamic Interchange ("DYN") d) Wheeling ("WHEEL") e) Unit Contingency ("UCTG") Proposed by the service definition team Represents the maximum number of consecutive Trading Hours that an Intertie resource can be bid in, if a Minimum Hourly Block is specified in the Bid. This class represent the resource certification for a specific product type. For example, a resource is certified for Non-Spinning reserve for RTM. This class model the various capacities of a resource. A resource may have numbers of capacities related to operating, ancillary services, energy trade and so forth. The types are but not limited to: Ancillary Service Regulation Up Regulation Dn Spinning Reserve Non-Spinning Reserve Operating Reserve RUC Energy Trade Y - Resource is Must Offer N - Resource is not Must Offer R - Resource is eligible for Must Offer based on RA Capacity or RCST designation in any given trading hour MRID stands for master resource identifier which should be globally unique. capacity type The types are but not limited to: Regulation Up Regulation Dn Spinning Reserve Non-Spinning Reserve FOO capacity MOO capacity default capacity Product of RMS value of the voltage and the RMS value of the in-phase component of the current (Megawatt)