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Meter Reading Estimation Process (HDD/CDD)

Meter Reading Estimation Process (HDD/CDD)

Meter Reading Estimation Process (HDD/CDD)

At my utility company our current method for estimating utility meters is based on previous history.  For example, if your meter was estimated today the system would retrieve previous 6 months of user consumption to calculate current estimation (average usage between the 6 months).  Consumption would be retrieved from Aug 2010, Aug 2009, Oct 2009, Oct 2008,Sep 2009, and Sep 2008.

Aug 2010 KWH 1800
Aug 2009 KWH 1450
Oct 2009 KWH 520
Oct 2008 KWH 610
Sep 2009 KWH 990
Sep 2008 KWH 850

6,220 / 6 = 1037 KWH (Your Sep estimated consumption)

My Question:  How could I apply HDD/CDD to the estimation process to make estimations closer to accurate?  I have been scrambling different percentages pertaining to HDD/CDD to add/subract KWH per month estimated, but still am not comfortable.


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