Versioning of MV90 Master Files

Versioning of Master Files• Critical change is deemed when one of the following

parameters are changed in the MV90 Master file:– # of Channels

– UOM per Channel

– Direction of Power Flow

– Intervals per Hour

– Pulse Multiplier

– Meter Multiplier

• NEW registration process designed to handle pulse multiplier and meter multiplier changes

• Applicable only for Compliant Meter Installations

Versioning of Master Files• Meter ki changes (pulse multiplier) and CT tap changes

(meter multiplier) nolonger require re-registration of the meter installation

• Process involves IMO versioning of the master file - master file history is maintained

• MPID is maintained for the life of the installation

• First 3 weeks of historical estimated data is lost - occurs everytime the masterfile is versioned

• Savings of approx. $10k per meter point registration

• Market Manual 3.2 will be updated at next baseline