NOTICE DATE: June 22, 2011

NOTICE TYPE: M-A062211-01 NPRR

SHORT DESCRIPTION: Supporting information for NPRR322 related to Day-Ahead Market submission criteria

INTENDED AUDIENCE: ERCOT Market Participants

DAY AFFECTED: June 22, 2011

LONG DESCRIPTION: On June 21, 2011, the ERCOT Board approved Nodal Protocol Revision Request (NPRR) 322, Real-Time PTP Option Modeling, which is effective upon system implementation, except for the following sections which are effective upon Board approval, or June 22, 2011.

· Paragraph (4) of Section 4.4.5, CRR Offers

· Paragraph (4) of Section 4.4.5.1, CRR Offer Criteria

· Paragraph (1) of Section 4.4.5.2, CRR Offer Validation

As described in those sections, effective immediately Congestion Revenue Right (CRR) Offers submitted into the Day-Ahead Market (DAM) on behalf of Non-Opt-In-Entity (NOIE) CRR Account Holders shall only be used for delivery of energy to a NOIE Load or a valid combination of Settlement Points that physically or contractually mitigates risk in supplying the NOIE Load. Further, for each hour, the quantity of the CRR Offer may not exceed 110% of that NOIE’s peak Load forecast or 125% of the NOIE’s hourly Load forecast. The new CRR Offer submission rules will not be subject to validation by the market system.

ADDITIONAL INFORMATION: NPRR322 and associated documents can be found on the ERCOT website, under Market Rules, at http://www.ercot.com/mktrules/issues/nprr/301-325/322/index. Also on the ERCOT website are the revised Protocols to reflect the Board approval http://www.ercot.com/mktrules/nprotocols/current.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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