This document discusses extrapolation in consumption registers. It defines key terminology used in extrapolation like weighting procedures, weighting keys, and weighting units. It explains how the system determines if a period is representative for extrapolation based on minimum portion percentage and period length. If a period is not representative, extrapolation is based on periodic consumption rather than meter readings. The document provides an example of forecasting from previous periods with minimum portions, and demonstrates how estimated meter readings are calculated and can change based on actual readings or consumption changes.

1. DM : Extrapolation for Consumption Registers
Presented By : Rakesh Dasgupta
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2. Agenda
1.Terminologies
2.Extrapolation in Consumption Registers
3.Screenshots
4.Demo
5.Questions .

3. Terminology
Weighting Procedure : Internal System procedures that are applied to existing meter
reading results ,period consumption/demand values for determining expected
values for extrapolation/proration.
Weighing Key : User Defined weighting keys are allocated to predefined weighting
procedures. Used in Operands and Register Groups
Weighing Unit : Is ia fixed Value. The periods for the distribution of weighting units
are always indicated by the month or day and is year independent
Ex. Weighting Unit for the month of Jan = 200
Weighting Units for the whole Year = 1000
Weighting Portion (%)for the month of Jan = (Weighting Porting of Jan/ Weighting Units for whole Year)*100
= (200/1000)*100 = 20%
Period Length of Portion : defines the interval for billing the associated contracts.
Defined in Portion
Minimum portion in Percent : This is multiplied by the period length to determine
the period for which the meter reading results should be available for the system to
extrapolate based on existing meter reading results.
Base Period Category : This is present in the Installation.
This helps to control whether to extrapolate the expected values based on the
previous period or the previous year.

4. Determination whether a Period is Representative
For determining whether a Period is representative :
Minimum portion in percent * Length of meter reading period
= Minimum length of base period
Or
Weighing Portion of Period = Minimum Portion
Lets say the Minimum Portion is 30%
The Period length for Meter Reading is 365 days.
So the Minimum length of base period = 30% of 365 = 109.5 days
So if the period between the two MR is less than 109.5 days then the Period is
not representative. If the weighing portion for the period between the two MR
is less than the Minimum Portion then also the period is not representative.
When the period is not representative ,extrapolation is based on the periodic
consumption rather than on Meter Reading results.

5. Extrapolation for Consumption Registers
Here I shall only be discussing the scenario of “Forecast from pervious periods
with minimum portion”
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6. Period Consumption : 100 units for 10 days

7. Weighting Units for Used Defined Weighting Procedure

8. Register Group : Weighting Key defined

9. Operand Used with Weighting Key

10. Minimum Portion in % : Defined in Rate

11. Base Period Category : Installation

12. First Meter Reading Entered : 160 units on 31012011

13. Meter Reading Estimated 408 units on 30042011

14. Meter Reading Estimated 336 units for 31032011

15. Meter Reading Estimated for 30042011

16. Meter Reading Estimated for 30062011 = 514 units

17. Change of Periodic Consumption

18. Estimated MR for 30062011 changes

19. Demo

20. Questions