SHORT DESCRIPTION: Results of the price impact analysis for inclusion of Controllable Load Resources (CLRs) associated with Energy Storage Resources (ESRs) in Load Zone prices

LONG DESCRIPTION: This is an update to Market Notice M-C030923-01, issued on March 9, 2023, regarding the inclusion of CLRs associated with ESRs in Load Zone prices for both the Real-Time Market (RTM) and the Day-Ahead Market (DAM).

ERCOT Protocols Sections 4.5.3(6)(b) and 6.3(7)(b) for the DAM and RTM, respectively, require that the absolute value impact to any single Counter-Party meet one of the following two criteria before seeking price correction approval from the ERCOT Board of Directors (Board).

ERCOT has determined that there were 16 ODs for the DAM that meet the criteria for seeking Board approval for price correction.

The number of Counter-Parties meeting one of the two criteria for significance are shown in the table below for each OD that met the criteria for seeking Board approval for price correction for the DAM:

Operating Day	Counter-Parties meeting criteria in Protocol Section 4.5.3(6)(b)(i)	Counter-Parties meeting criteria in Protocol Section 4.5.3(6)(b)(ii)
2/10/2023	3	2
2/11/2023	2	2
2/13/2023	4	0
2/15/2023	1	2
2/16/2023	5	6
2/18/2023	2	5
2/19/2023	0	1
2/20/2023	2	7
2/22/2023	3	4
2/27/2023	0	1
2/28/2023	1	5
3/1/2023	0	2
3/2/2023	5	3
3/3/2023	1	2
3/5/2023	0	1
3/8/2023	0	1

For each OD that met the criteria for DAM, the table below has the maximum estimated absolute value impact to Counter-Parties:

Operating Day	Maximum Amount ($Thousands)	Maximum Percentage for Criteria (i)*	Maximum Percentage for Criteria (ii)**
2/10/2023	$65.13	8.13%	108.79%
2/11/2023	$36.36	10.29%	99.11%
2/13/2023	$36.84	11.06%	12.12%
2/15/2023	$32.19	2.07%	61.37%
2/16/2023	$117.32	21.27%	56.16%
2/18/2023	$55.08	5.25%	162.41%
2/19/2023	$11.26	NA	29.79%
2/20/2023	$75.20	647.52%	647.52%
2/22/2023	$44.70	4.51%	677.15%
2/27/2023	$9.15	NA	43.15%
2/28/2023	$39.71	2.31%	159.80%
3/1/2023	$15.63	NA	62.96%
3/2/2023	$44.36	16.68%	341.84%
3/3/2023	$21.36	3.35%	51.67%
3/5/2023	$23.90	1.83%	32.84%
3/8/2023	$11.25	NA	22.97%

* The maximum of percentage change to any single Counter-Party with impact more than $20,000 (set as NA when no single Counter-Party has impact more than $20,000)

** The maximum of percentage change to any single Counter-Party with impact more than $2,000 (set as NA when no single Counter-Party has impact more than $2,000)

ERCOT has determined that none of the impacted Operating Days (ODs) for the RTM meet the criteria necessary for seeking Board approval for price correction.

The absolute value impacts across all ODs for the RTM to any single Counter-Party with a dollar impact greater than $2,000 are shown in the table below:

ERCOT intends to seek an approval of correction to DAM prices for the impacted ODs that met the necessary criteria at the Reliability and Market Committee on June 19, 2023, and the Board meeting on June 20, 2023. Additionally, ERCOT staff intends to present on the price correction to the Technical Advisory Committee (TAC) during their meeting scheduled for May 23, 2023.

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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Dollar Impact	Percent Impact
$4,670.87	0.160%
$3,846.93	0.330%
$3,778.90	0.101%
$2,573.72	1.432%