JUNE 18, 2012 CSWG

CRR AUCTION RESULTS FORMAT ISSUE FOR DISCUSSION

AUSTIN ENERGY

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CRR MONTHLY & ANNUAL AUCTION FILES

•Each CRR has a unique ID•CRRs can be broken up & offered for sale•CRRs awarded to sale have only a ORI_CRR_ID•CRRs awarded to buy have only a CRR_ID•When sold a CRR can be broken into multiple offers

•Each bid has the same ORI_CRR_ID as the original CRR_ID before the split•There is no way to tell if the identical ORI_CRR_IDs are due to a system error with the information ERCOT is providing

•Items for discussion:•Did other Market Participant also notice this as an issue?•What solutions are possible?

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EXAMPLECRR_ID ORI_CRR_ID MW PRICE BUY/SELL QSE

N/A 1234 1 $5 SELL XYZ

N/A 1234 1 $5 SELL XYZ

1235 N/A 1 $5 BUY ABC

1236 N/A 1 $5 BUY ABC

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