PX credit posting consistency analysis



Attached you will find an analysis of the different posting formats and 
protocols for the UDCs' PX credit rates or weights.  At the Customer 
Data Transaction meeting on May 8, Green Mountain had taken on the 
responsibility of aggregating the information on how each UDC was 
posting this information.  We recommend the following near term changes 
and ask for comments on or additions to them by May 20.  If you are 
interested in customer data transaction issues and have not yet 
subscribed to the CDT exploder, please do so as described at 
http://162.15.5.2/wk-group/dai/.

- Julie Blunden, Green Mountain Energy Resources

Recommended Near Term Changes to Posting of UDC PX Credit Rates

1) All UDCs use a common format of PX credits to the same number of 
significant digits.

2) As a principle, UDCs minimize the degree to which ESPs have to use 
the posted data in additional calculations to prevent calculation or 
protocol errors in replicating the PX credit seen on a customer's bill.

3) All UDCs provide full explanations of all codes used in the PX 
credits posted on their respective websites.


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0514PXcompare.xls