Hi Everyone,

Attached is my presentation on KP1.1 Real-Time AS Demand Curves for RTCTF meeting on 9/19/19.

I look forward to discussing this at the meeting.

Regards,

Shams Siddiqi, PhD

President, Crescent Power, Inc.

11412 Bee Caves Rd, Suite 202

Austin, Texas 78738

Tel. +1.512.619.3532

Email: [log in to unmask]

www.crescentpower.net

RTCTF,

ERCOT and market comments have been posted for the Sept 19^th meeting and it will be a full day.  I wanted to highlight the input received and posted on each of these topics below.  (http://www.ercot.com/calendar/2019/9/19/180276-RTCTF)

KP1.1 - Curve Disaggregation into Individual ASDC

• Input from NRG, Luminant, Siddiqi

KP1.2 - KP1.2 - Capping of MCPCs when Energy Price is Capped

• Input from Luminant and Siddiqi

KP 1.3 - RTC Constraints

• Multiple topics within discussion; including AS Re-procurement, Combined Cycle expectations, STEC Hydro issue, Infeasible AS, AS Offer structure and proxies.
• Input from TCPA/LCRA, Siddiqi, Trefny

KP 5 - Day-Ahead Market

• Input from Morgan Stanley

KP 2- Definition of AS Products to align with RTC Framework

• ERCOT proposal

Thank you for the continued support,

Matt

RTCTF,

A reminder that comments/alternatives are due Thursday Sept 12^th (a week ahead of the Sept 19 meeting).

Thanks,

Matt

Matt Mereness

[log in to unmask]

O: 512.248.3089

M: 512.565.8939

RTCTF,

ERCOT has posted the updated Key Principle documents with revisions for the next meeting on Sep 19^th (http://www.ercot.com/calendar/2019/9/19/180276-RTCTF).  Below is a rather long summary of the expectations for each of these items, and reminder that comments/alternative are due a week ahead of time, Thursday Sept 12.

KP 1.1 AS Demand Curves (2) and (5)-

Sep 19^th meeting will be the final RTCTF consideration of this item.

• KP 1.1 (2)- Seeking final market comments on concept of maintaining pricing run to capture the effects of reliability deployments.
• KP 1.1 (5)- Seeking consensus and/or confirming options for TAC regarding the disaggregation of A/S product curves under the ORDC-shaped curve.
• ERCOT and Shams will each present KP language and a brief summary of proposal.
• RTCTF asked for the following to help support this discussion
• Pros/cons for both alternatives
• Examples of impacts for two scenarios (of possible with same data):
• Short duration ramp spike scenario (plenty of capacity, a temporary ramp constraint)
• Scarcity scenario (similar to August peak demand)

KP 1.2 System-Wide Offer Cap and Power Balance Penalty Price (3)-      

      Sep 19^th meeting will be second meeting to review potential options for AS Price Caps (MPs need to bring comments/language/options).

•  KP1.2 (3)- Method of capping A/S prices
• ERCOT proposal to cap AS prices considering amount of energy cap reduction
• Shams proposal to cap AS prices at single value
• Ned alternative, still developing (potentially capping at highest offer selected)

KP 1.3 Offering and Awarding AS in Real-Time (1)-(12)-

      Sep 19^th meeting will be an extra meeting to further understand and review potential options (MPs need to bring comments/language/options).

• KP 1.3  Goal is for any alternatives to be presented as KP language with examples.
• Further discussion of Load Resources, AS Offer structure, AS Proxy Offers and Floors
• ERCOT to provide a year of online RRS Gen capacity available and settlement examples spreadsheet details.

KP 5 Day-Ahead Market (1)-(6)

      Sep 19^th meeting will be second meeting on DAM changes

• Clayton potentially proposing additional item for Virtual AS Offers

Your time and energy are appreciated and ERCOT staff are available to support questions/details on these items,

Matt

Matt Mereness

[log in to unmask]

O: 512.248.3089

M: 512.565.8939

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