Accumulated Delta

N/A

AccumDelta = (Daily Projection) – (Nomination)

Accumulated Delta Percentage

N/A

AccumDeltaPercentage = (Daily Accumulated / Nomination) * 100

Average Hourly Accumulation

N/A

AvgHourlyAccumulation = Average of Historical Hourly Flows in VHS

Daily Accumulated

If Perform predictive calculations using only complete hours is checked, the Formula has no effect.

DailyAccum = Sum(Hourly Volumes in VHS)

If Perform predictive calculations using only complete hours is not checked and the Formula = Sum Hourly History.

DailyAccum = Sum(Hourly Volumes in VHS) + ((Hours Elapsed Since Beginning of Hour) * (Value of Last Full Hourly Volume in VHS))

If Perform predictive calculations using only complete hours is not checked and the Formula = Sum Hourly History + Current Hour.

DailyAccum = Sum(Hourly Volumes in VHS) + (((Minutes Elapsed Since Beginning of Hour) / (Minutes Represented by CVS Value Timestamp)) * (CVS Value))

Daily Projection

Use Last Hour Accum (from History)

DailyProjection = DailyAccum + ((Last Historical Value in VHS) * (Hours Left in Day))

Use Last Hour Accum (from CVS)

DailyProjection = DailyAccum + ((Last Hour Flow in CVS) * (Hours Left in Day))

Use Current Flow

DailyProjection = Daily Accum + ((Instantaneous Flow Rate) * (Hours Left in Day))

Estimate Hourly Accumulation

Use Flow Rate History

Iterates the history of the instantaneous flow rate point in the VHS, which should contain an entry for each flow rate change. It then sums up the flow per hour and writes an hourly volume to the VHS under the historical volume point. For more information, see Command Parameters.

Use Daily Accum History

Iterates the history of the daily accumulated point in the VHS, which should contain an entry for each value poll. The value should start at zero at the beginning of the day and slowly increase throughout the course of the day. It then breaks out the flow per hour and writes an hourly volume to the VHS under the historical volume point. For more information, see Command Parameters.

Nomination Met Time

Use Last Hour Accum (from History)

AccumPerHour = (Last Historical Value in VHS)

AccumToGo = Nomination – DailyAccum

HoursToGo = AccumToGo / AccumPerHour

NominationMetTime = Now + HoursToGo

Use Last Hour Accum (from CVS)

AccumPerHour = (Last Hour Flow in CVS)

AccumToGo = Nomination – DailyAccum

HoursToGo = AccumToGo / AccumPerHour

NominationMetTime = Now + HoursToGo

Use Current Flow

AccumPerHour = (Instantaneous Flow Rate)

AccumToGo = Nomination – DailyAccum

HoursToGo = AccumToGo / AccumPerHour

NominationMetTime = Now + HoursToGo

Rate Delta

N/A

FlowDelta = (Instantaneous Flow Rate) – (Rate-To-Go)

Rate-To-Go

Linear

RateToGo = (Nomination - DailyAccum) / (Hours Left in Day)