Petition for PRC-006-SERC-03

UNITED STATES OF AMERICA
BEFORE THE
FEDERAL ENERGY REGULATORY COMMISSION
North American Electric Reliability
Corporation

)
)

Docket No. ______

JOINT PETITION OF THE NORTH AMERICAN ELECTRIC RELIABILITY
CORPORATION AND SERC RELIABILITY CORPORATION FOR APPROVAL OF
PROPOSED REGIONAL RELIABILITY STANDARD PRC-006-SERC-03 AND
REQUEST FOR EXPEDITED ACTION
Lauren Perotti
Senior Counsel
North American Electric Reliability Corporation
1325 G Street, N.W., Suite 600
Washington, D.C. 20005
202-400-3000
lauren.perotti@nerc.net
Counsel for the North American Electric Reliability
Corporation
Holly A. Hawkins
Vice President, General Counsel, and Corporate
Secretary
Courtney Ballard, Legal Counsel
SERC Reliability Corporation
3701 Arco Corporate Drive, Suite 300
Charlotte, NC 28273
(704) 357-7372
hhawkins@serc1.org
cballard@serc1.org
Counsel for the SERC Reliability Corporation

DECEMBER 14, 2021

i

TABLE OF CONTENTS

I.

EXECUTIVE SUMMARY ................................................................................................ 2

II.

REQUEST FOR EXPEDITED COMMISSION ACTION ................................................ 3

III.

NOTICES AND COMMUNICATIONS ............................................................................ 4

IV.

BACKGROUND ................................................................................................................ 4

V.

JUSTIFICATION FOR APPROVAL................................................................................. 7

VI.

EFFECTIVE DATE .......................................................................................................... 12

VII.

CONCLUSION ................................................................................................................. 13

ATTACHMENTS
Exhibit A

Proposed Regional Reliability Standard, PRC-006-SERC-03- Automatic
Underfrequency Load Shedding Requirements
Exhibit A-1: Clean
Exhibit A-2: Redline to PRC-006-SERC-02

Exhibit B

Implementation Plan

Exhibit C

Order No. 672 Criteria for Proposed Regional Reliability Standard PRC006-SERC-03

Exhibit D

Summary of Development History and Complete Record of Development

Exhibit E

Standard Drafting Team Roster for PRC-006-SERC-03- Automatic
Underfrequency Load Shedding

ii

UNITED STATES OF AMERICA
BEFORE THE
FEDERAL ENERGY REGULATORY COMMISSION

North American Electric Reliability
Corporation

)
)

Docket No. ________

JOINT PETITION OF THE NORTH AMERICAN ELECTRIC RELIABILITY
CORPORATION AND SERC RELIABILITY CORPORATION FOR APPROVAL OF
PROPOSED REGIONAL RELIABILITY STANDARD PRC-006-SERC-03 AND
REQUEST FOR EXPEDITED ACTION
Pursuant to Section 215(d)(1) of the Federal Power Act (“FPA”) 1 and 18 C.F.R. § 39.5
(2021), the North American Electric Reliability Corporation (“NERC”) 2 and SERC Reliability
Corporation (“SERC”) respectfully request the Federal Energy Regulatory Commission’s
(“Commission”) approval of proposed regional Reliability Standard PRC-006-SERC-03Automatic Underfrequency Load Shedding (“UFLS”) 3 Requirements. Proposed regional
Reliability Standard PR-006-SERC-03 establishes consistent and coordinated requirements for the
design, implementation, and analysis of automatic UFLS programs among all SERC applicable
entities.
NERC requests that the Commission approve proposed regional Reliability Standard PRC006-SERC-03 (Exhibit A) as just, reasonable, not unduly discriminatory or preferential, and in
the public interest. NERC also requests approval of: (i) the proposed Effective Date, as set forth
in the proposed regional Reliability Standard and associated implementation plan (Exhibits A and
B); (ii) the associated Violation Risk Factors (“VRFs”) and Violation Severity Levels (“VSLs”)

1

16 U.S.C. § 824o (2018).
The Commission certified NERC as the electric reliability organization (“ERO”) in accordance with Section 215 of
the FPA on July 20, 2006. N. Am. Elec. Reliability Corp., 116 FERC ¶ 61,062 (2006) (“ERO Certification Order”).
3
Unless otherwise designated, all capitalized terms shall have the meaning set forth in the Glossary of Terms Used
in NERC Reliability Standards, available at
https://www.nerc.com/pa/Stand/Glossary%20of%20Terms/Glossary_of_Terms.pdf
2

1

(Exhibit A); and (iii) the retirement of regional Reliability Standard PRC-006-SERC-02. The
NERC Board of Trustees adopted proposed regional Reliability Standard PRC-006-SERC-03 on
November 4, 2021.
As required by Section 39.5(a) 4 of the Commission’s regulations, this petition presents the
technical basis and purpose of proposed regional Reliability Standard PRC-006-SERC-03; a
demonstration that the proposed regional Reliability Standard meets the criteria identified by the
Commission in Order No. 672 5 (Exhibit C); and a summary of the development history (Exhibit
D).
I.

EXECUTIVE SUMMARY
The purpose of proposed regional Reliability Standard PRC-006-SERC-03 is to establish

consistent and coordinated requirements for the design, implementation, and analysis of automatic
UFLS programs among all SERC applicable entities. Proposed regional Reliability Standard PRC006-SERC-03 incorporates revisions to: (i) provide more flexibility for Planning Coordinators to
adjust island boundaries in order to perform more accurate and complete studies; (ii) address the
transition of Florida Reliability Coordinating Council (“FRCC”) registered entities to SERC
following the dissolution of FRCC as a regional entity on July 1, 2019; 6 (iii) clarify a technical
term used in the regional Reliability Standard;and (iv) align requirement language with the current
continent-wide NERC Reliability Standard, PRC-006-5.
Currently effective regional Reliability Standard PRC-006-SERC-02 was approved by the

4

18 C.F.R. § 39.5(a).
The Commission specified in Order No. 672 certain general factors it would consider when assessing whether a
particular Reliability Standard is just and reasonable. See Rules Concerning Certification of the Electric Reliability
Organization; and Procedures for the Establishment, Approval, and Enforcement of Electric Reliability Standards,
Order No. 672, 114 FERC ¶ 61,104, at P 262, 321-37, order on reh’g, Order No. 672-A, 114 FERC ¶ 61,328 (2006)
(“Order No. 672”).
6
Letter Order Approving the Joint Petition Requesting Certain Approvals in connection with the Dissolution of FRCC,
167 FERC ¶ 61,095, (2019).
5

2

Commission on October 16, 20177 and became effective on registered entities in the SERC region
on January 1, 2018. Following the addition of FRCC’s registered entities to SERC in 2019, SERC
initiated a project to review PRC-006-SERC-02. SERC’s Dynamics Working Group identified the
need to revise the regional Reliability Standard to account for UFLS settings that are unique to the
Florida peninsula. As part of this project, SERC also identified other opportunities to enhance the
regional standard.
For the reasons discussed herein, NERC and SERC respectfully request the Commission
approve proposed regional Reliability Standard PRC-006-SERC-03, the associated VRFs and
VSLs, the proposed Effective Date as set forth in the implementation plan, and the retirement of
currently effective regional Reliability Standard PRC-006-SERC-02. The following petition
presents the justification for approval and supporting documentation.
II.

REQUEST FOR EXPEDITED COMMISSION ACTION
NERC and SERC respectfully request that the Commission consider this petition on an

expedited basis, to allow the issuance of an order in this proceeding by July 1, 2022. The requested
timeline will allow Planning Coordinators that are participating in SERC’s Dynamic Working
Group’s UFLS study to incorporate the revisions in proposed regional Reliability Standard PRC006-SERC-03 in adjusting island boundaries. Incorporating the revisions reflected in proposed
PRC-006-SERC-03 into the study will provide more accurate and meaningful results.

7

N. Am. Elec. Reliability Corp., Docket No. RD17-9-000 (Oct. 16, 2017) (delegated letter order).

3

III.

NOTICES AND COMMUNICATIONS
Notices and communications with respect to this filing may be addressed to the following: 8

Holly A. Hawkins*
General Counsel
Courtney Ballard*
Legal Counsel
SERC Reliability Corporation
3701 Arco Corporate Drive, Suite 300
Charlotte, NC 28273
(704) 357-7372
hhawkins@serc1.org
cballard@serc1.org
IV.

Lauren Perotti
Senior Counsel
North American Electric Reliability
Corporation
1325 G Street, N.W., Suite 600
Washington, D.C. 20005
202-400-3000
lauren.perotti@nerc.net

BACKGROUND
The following background information is provided below: (a) an explanation of the

regulatory framework for NERC and regional Reliability Standards; (b) an explanation of the
SERC regional Reliability Standards development process; and (c) the history of development of
PRC-006-SERC-03.
A. Regulatory Framework
By enacting the Energy Policy Act of 2005, 9 Congress entrusted the Commission with the
duties of approving and enforcing rules to ensure the reliability of the Nation’s Bulk-Power
System, and with the duties of certifying an ERO that would be charged with developing and
enforcing mandatory Reliability Standards, subject to Commission approval. Section 215(b)(1) 10
of the FPA states that all users, owners, and operators of the Bulk-Power System in the United

8

Persons to be included in Commission’s official service list. The Petitioners respectfully request a waiver of Rule
203 of the Commission’s regulations, 18 C.F.R. § 385.203, to allow the inclusion of more than two persons on the
service list in this proceeding.
9
16 U.S.C. § 824o.
10
Id. § 824o(b)(1).

4

States will be subject to Commission-approved Reliability Standards. Section 215(d)(5) 11 of the
FPA authorizes the Commission to order the ERO to submit a new or modified Reliability
Standards to the Commission. Section 39.5(a) 12 of the Commission’s regulations requires the ERO
to file with the Commission for its approval each Reliability Standard that the ERO proposes
should become mandatory and enforceable in the United States, and each modification to a
Reliability Standard that the ERO proposes should be made effective.
The Commission has the regulatory responsibility to approve Reliability Standards that
protect the reliability of the Bulk-Power System and to ensure that such Reliability Standards are
just, reasonable, not unduly discriminatory or preferential, and in the public interest. Pursuant to
Section 215(d)(2) of the FPA 13 and Section 39.5(c)(1) 14 of the Commission’s regulations, the
Commission will give due weight to the technical expertise of the ERO with respect to the content
of a Reliability Standard.
Similarly, the Commission approves regional Reliability Standards proposed by Regional
Entities if the regional Reliability Standard is just, reasonable, not unduly discriminatory or
preferential, and in the public interest. 15 In addition, Order No. 672 requires further criteria for
regional Reliability Standards. A regional difference from a continent-wide Reliability Standard
must either be: (1) more stringent than the continent-wide Reliability Standard, including a
regional difference that addresses matters that the continent-wide Reliability Standard does not; or
(2) necessitated by a physical difference in the Bulk-Power System. 16

11

Id. § 824o(d)(5).
18 C.F.R. § 39.5(a).
13
16 U.S.C. § 824o(d)(2).
14
18 C.F.R. § 39.5(c)(1).
15
Section 215(d)(2) of the FPA and 18 C.F.R. §39.5(a).
16
Rules Concerning Certification of the Electric Reliability Organization; and Procedures for the Establishment,
Approval, and Enforcement of the Electric Reliability Standards, Order No. 672, 114 FERC ¶ 61,104, at P 291, order
on reh’g, Order No. 672-A, 114 FERC ¶ 61,328 (2006).
12

5

B. SERC Regional Reliability Standards Development Process
The proposed regional Reliability Standard was developed in an open and fair manner and
in accordance with the Commission-approved SERC Regional Reliability Standards Development
Procedure (“RSDP”). 17 SERC’s RSDP provides for reasonable notice and opportunity for public
comment, due process, openness, and a balance of interests in developing Reliability Standards
and thus addresses the Commission’s criteria for approving Reliability Standards. The
development process is open to any person or entity that is an interested stakeholder. SERC
considers the comments of all stakeholders, and a vote of stakeholders and the SERC Board of
Directors is require to approve a regional Reliability Standard.
In addition, NERC posts each proposed regional Reliability Standard for an additional 45day public comment period. The NERC Board of Trustees must adopt the proposed regional
Reliability Standard before it is submitted to the Commission for approval.
C. The Development History of Proposed PRC-006-SERC-03
As further described in Exhibit D, proposed regional Reliability Standard PRC-006SERC-03 was developed by the SERC Standard Drafting Team in response to a Standard
Authorization Request submitted by SERC Dynamics Working Group on February 27, 2020. On
May 17, 2021, proposed regional Reliability Standard PRC-006-SERC-03 received the requisite
approval from the registered ballot body, with 100 percent affirmative vote. The SERC Board of
Directors approved the proposed regional standard on June 24, 2021. NERC posted the regional
standard for a 45-day comment period from August 25, 2021 through October 8, 2021.
Commenters agreed that the proposed regional standard was developed in a fair and open process

17

The currently effective SERC RSDP was approved by the Commission on June 15, 2021. See N. Am. Elec.
Reliability Corp., Docket No. RR21-2-000 (June 15, 2021) (delegated letter order). The SERC RSDP is available at
https://www.serc1.org/docs/default-source/program-areas/standards-regional-criteria/standards-documents/sercregional-reliability-standards-development-procedure.pdf?sfvrsn=1bc85593_4.

6

using the SERC RSDP, that there were no concerns that should prevent its adoption, and that it
meets at least one of the criteria for approving regional standards. There were no additional
changes to the proposed regional standard after this comment period. The NERC Board of Trustees
subsequently adopted the proposed regional standard on November 4, 2021.
V.

JUSTIFICATION FOR APPROVAL
As discussed in detail in Exhibit C, proposed regional Reliability Standard PRC-006-

SERC-03 – Automatic Underfrequency Load Shedding Requirements is just, reasonable, not
unduly discriminatory or preferential, and in the public interest. Also, as described more fully
herein and in Exhibit C, the proposed regional Reliability Standard provides reliability benefits
for the Bulk-Power System in the SERC region.
The purpose of proposed regional Reliability Standard PRC-006-SERC-03 is to establish
consistent and coordinated requirements for the design, implementation, and analysis of automatic
UFLS programs among all SERC applicable entities. The provisions of the proposed regional
Reliability Standard provide specific requirements for the development, coordination,
implementation, and analysis of UFLS schemes in the SERC region that are not included in the
continent-wide Reliability Standard that addresses UFLS programs, Reliability Standard PRC006-5. In approving currently effective regional Reliability Standard PRC-006-SERC-02, the
Commission confirmed that the regional standard continues to “work in conjunction with NERC
Reliability Standard PRC-006-1 to mitigate the consequences of an underfrequency event
effectively while accommodating differences in system transmission and distribution topology
among SERC planning coordinator[s] due to historical design criteria, makeup of load demands,
and generation resources.” 18 Proposed PRC-006-SERC-03 provides this same benefit with
18

N. Am. Elec. Reliability Corp., Docket No. RD17-9-000 (October 16, 2017) (delegated letter order) (citing, via

7

additional proposed enhancements. Therefore, the proposed regional Reliability Standard meets a
reliability need for the SERC region, and as discussed below, the proposed modifications provide
additional support for the reliable operation of the Bulk-Power System.
The proposed regional Reliability Standard includes requirements for selecting or
developing a UFLS scheme that meets specified criteria (Requirement R2); conducting simulations
of the UFLS scheme for an imbalance between load and generation when performing design
assessments (Requirement R3); implementing the UFLS scheme in the SERC region for entities
with a load of 100 MW or greater (Requirement R4); implementing the UFLS scheme in the SERC
region for entities with a load of less than 100 MW (Requirement R5); implementing certain
changes to the UFLS scheme within 18 months of notification by the Planning Coordinator
(Requirement R6); and providing information for post-event analysis of frequency disturbances to
SERC or the Planning Coordinator (Requirement R8). Requirements R1 and R7 of the currently
effective standard are proposed for retirement in proposed regional Reliability PRC-006-SERC03, but the numbering for the remaining Requirements is unchanged in the interest of
administrative convenience.
This section of the petition addresses: (a) the justification of the need for the proposed
regional Reliability Standard; (b) the description and technical basis of the proposed revisions; and
(c) the enforceability of the proposed regional Reliability Standard.
A. Justification for the Need for the Proposed Regional Reliability Standard
Proposed regional Reliability Standard PRC-006-SERC-03 meets the criteria for a regional

NERC’s petition, Regional Reliability Standard PRC-006-SERC-01 – Automatic Underfrequency Load Shedding
Requirements, Order No. 772, 141 FERC ¶ 61,243 at P 14 (2012) (“Order No. 772”)). Note that the current version
of the continent-wide Reliability Standard PRC-006 is version 5, although at the time of approval of PRC-006SERC-02 the continent-wide standard was version 2, and at the time of approval of PRC-006-SERC-01 the
continent-wide standard was version 1. Proposed-006-SERC-03 continues to work in conjunction with currentlyeffective Reliability Standard PRC-006-5.

8

Reliability Standard as set forth in Order No. 672 as it is more stringent than the related continentwide NERC Reliability Standard PRC-006-5, which does not include a detailed plan criteria or a
maximum timeframe to implement changes to a UFLS scheme. As noted above, the Commission
previously recognized that the additional specificity in the regional Reliability Standard helps to
mitigate the consequences of an Underfrequency event while accommodating differences in SERC
system transmission and distribution topology. 19 Registered entities that perform the functions to
which the continent-wide Reliability Standard and the proposed regional Reliability Standard
apply need to comply with all applicable Reliability Standards. Therefore, the proposed regional
Reliability Standard provides a level of reliability support to the SERC region in addition to the
continent-wide standard.
B. Description and Technical Basis of Proposed Revisions
First, the proposed revisions provide more flexibility for Planning Coordinators to properly
test the capabilities of UFLS settings. Specifically, by eliminating PRC-006-SERC-02
Requirement R1 from proposed regional Reliability Standard PRC-006-SERC-03, it removes the
more restrictive requirement that each Planning Coordinator must use its SERC sub-region as an
identified island or may only adjust boundaries for the purpose of producing a contiguous subregional island. After removing this requirement, Planning Coordinators will be able to build
islands in accordance with the continent-wide Reliability Standard PRC-006-5 Requirement R2.
As originally proposed as part of PRC-006-SERC-01, 20 the rationale for PRC-006-SERC-02
Requirement R1 was to uncover and fix poorly performing schemes. However, by removing this
requirement, Planning Coordinators will be able to better test the capabilities of the UFLS settings

19

Id.
See Petition for Approval of Regional Reliability Standard PRC-006-SERC-01, Docket No. RM12-9-000 (Feb. 1,
2012).
20

9

as registered entities transition from one Planning Coordinator to another and build islands that
reflect current conditions where SERC sub-regions may not be contiguous. These more
comprehensive studies are more likely to uncover and fix poorly performing schemes. Thus, the
revision to remove PRC-006-SERC-02 Requirement R1 from PRC-006-SERC-03 supports a
reliable Bulk-Power System by allowing Planning Coordinators to adjust island boundaries in
order to perform more accurate and complete studies.
Second, the proposed revisions incorporate the existing frequency set points that FRCC’s
former registered entities have in place and provide a second method for calculating the percent of
load shed based on these entities’ existing practices. Due to the physical nature of the Florida
peninsula, UFLS settings are set differently than the rest of SERC entities. When FRCC was
dissolved and the registered entities located in the Florida peninsula became subject to SERC’s
regional Reliability Standard PRC-006-SERC-02, the existing UFLS settings for Florida were in
violation of the SERC regional standard. These UFLS settings are unique to the Florida peninsula
and have proven to be reliable during several historical events. Thus, the revisions in proposed
regional Reliability Standard PRC-006-SERC-03 Requirement R2, Part 2.3 and Part 2.4
incorporate the settings of the former FRCC registered entities, so that the continued application
of these historically reliable settings by these entities do not now violate the SERC regional
Reliability Standard. Additionally, proposed regional Reliability Standard PRC-006-SERC-03
Requirement R4, Part 4.1 and Requirement R5, Part 5.1 incorporate the former FRCC registered
entities’ use of the forecasted substation or feeder demand (including losses) of the UFLS entities
at the time coincident with the next year’s forecasted Peak Demand in the season to determine the
percent of load shed. Using forecasted load takes into account the previous year’s actual or
estimated value and allows a registered entity to make adjustments based on load growth or

10

decline. The inclusion of the former FRCC’s registered entities’ method is an additional reliable
method in calculating the percent of load shed.
Third, the proposed revision to replace “from frequency reaching the set point to the trip
signal” with “0.1 seconds” in Requirement R2, Part 2.6 clarifies the language of the requirement.
This clarification supports reliability by ensuring that the proposed regional Reliability Standard
language is clear and unambiguous in accordance with Order No. 672 criteria.
Fourth, and lastly, the proposed revisions align requirement language with the current
continent-wide NERC Reliability Standard, PRC-006-5. Specifically, the removal of PRC-006SERC-02 Requirement R7 in proposed regional Reliability Standard PRC-006-SERC-03
eliminates an unnecessary burden on SERC as the custodian of information that is already required
to be maintained by the Planning Coordinator in the continent-wide Reliability Standard PRC-0065 Requirement R6. While originally a SERC UFLS database was believed to be needed to facilitate
data sharing across the SERC region, with other regions, and with NERC, 21 information contained
in the database was not utilized as SERC, NERC, and the regions could request the same
information from the Planning Coordinator. As a result, this requirement created an unnecessary
burden on SERC to maintain custody of duplicative information. The removal of this requirement
does not create a reliability gap, as continent-wide Reliability Standard PRC-006-5 Requirement
6 still requires the Planning Coordinator to maintain this information in the event it is requested.
Additionally, the inclusion of “or Planning Coordinator” in proposed regional Reliability Standard
PRC-006-SERC-03 Requirement R8 reflects a Planning Coordinator’s ability to collect necessary
information on disturbances in the continent-wide Reliability Standard PRC-006-5 Requirements
R11 and R13. With the language alignment to the continent-wide standard, proposed regional

21

See id.

11

Reliability Standard PRC-006-SERC-03 still meets the criteria under Order No. 672, as the
remainder of Requirement R8 is unchanged and continues to be more stringent than the continentwide Reliability Standard.
C. Enforceability of Proposed Regional Reliability Standard PRC-006-SERC-03
The proposed regional Reliability Standard includes VRFs and VSLs for each requirement.
The VRFs remain unchanged from PRC-006-SERC-02, and the only proposed change to the VSLs
is a conforming change (changing “to SERC” to “to SERC or Planning Coordinator” to match the
proposed language in Requirement R8) that does not alter the substance of the VSLs. The VSLs
provide guidance on the way that NERC will enforce the requirements of the proposed regional
Reliability Standard. The VRFs are one of several elements used to determine an appropriate
sanction when the associated requirement is violations. The VRFs assess the impact to reliability
of violating a specific requirement. The VRFs and VSLs for the proposed regional Reliability
Standard comport with NERC and Commission guidelines related to their assignment.
The proposed regional Reliability Standard also includes measures that support each
requirement by clearly identifying what is required and how the requirement will be enforced.
These measures help ensure that the requirements will be enforced in a clear, consistent, and nonpreferential manner and without prejudice to any party. 22 The measures remain unchanged from
PRC-006-SERC-02.
VI.

EFFECTIVE DATE
NERC respectfully requests that the Commission approve the proposed regional Reliability

Standard PRC-006-SERC-03 and the retirement of PRC-006-SERC-02 to become effective as set

22

Order No. 672 at P 327 (“There should be a clear criterion or measure of whether an entity is in compliance with a
proposed Reliability Standard. It should contain or be accompanied by an objective measure of compliance so that it
can be enforced and so that enforcement can be applied in a consistent and non-preferential manner.”).

12

forth in the proposed regional Reliability Standard and associated implementation plan (Exhibits
A and B). SERC and NERC propose that regional Reliability Standard PRC-006-SERC-03
become effective on the first day of the first calendar quarter after approval by the Commission.
VII.

CONCLUSION
For the reasons set forth above, NERC and SERC respectively request that the Commission

approve:
•

the proposed regional Reliability Standard PRC-006-SERC-03 in Exhibit A;

•

the other associated elements in the Reliability Standard in Exhibit A, including
the VRFs and VSLs (Exhibits A and C);

•

the retirement of existing regional Reliability Standard PRC-006-SERC-02; and

•

the Effective Date, included in Exhibit A and the associated implementation plan
(Exhibit B).

Respectfully submitted,

/s/Courtney Ballard
Holly A. Hawkins
General Counsel
Courtney Ballard
Legal Counsel
SERC Reliability Corporation
3701 Arco Corporate Drive, Suite 300
Charlotte, NC 28273
(704) 357-7372
hhawkins@serc1.org
cballard@serc1.org

/s/ Lauren A. Perotti
Lauren Perotti
Senior Counsel
North American Electric Reliability
Corporation
1325 G Street, N.W., Suite 600
Washington, D.C. 20005
202-400-3000
lauren.perotti@nerc.net

Counsel for the SERC Reliability Corporation Counsel for the North American Electric
Reliability Corporation
Date: December 14, 2021
13

Exhibit A-1
Proposed Regional Reliability Standard, PRC-006-SERC-03 – Automatic Underfrequency Load Shedding
Requirements and Effective Date
Clean

RELIABILITY | RESILIENCE | SECURITY

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Exhibit B
Implementation Plan

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Exhibit C
Order No. 672 Criteria for Proposed Regional Reliability Standard PRC-006-SERC-03

RELIABILITY | RESILIENCE | SECURITY

Exhibit C
Order No. 672 Criteria for Proposed PRC-006-SERC-03
In Order No. 672, 1 the Commission identified a number of criteria it will use to analyze
Reliability Standards proposed for approval to ensure they are just, reasonable, not unduly
discriminatory or preferential, and in the public interest. The discussion below identifies these
factors and explains how the proposed regional Reliability Standard has met or exceeded the
criteria:
1. Proposed Reliability Standards must be designed to achieve a specified reliability goal
and must contain a technically sound means to achieve that goal. 2
The purpose of proposed regional Reliability Standard PRC-006-SERC-03 is to establish
consistent and coordinated requirements for the design, implementation, and analysis of automatic
UFLS programs among all SERC applicable entities. The proposed PRC-006-SERC-03 regional
Reliability Standard is technically sound and improves upon the currently effective regional
standard by: i) providing more flexibility for Planning Coordinators to adjust island boundaries in
order to perform more accurate and complete studies; (ii) addressing the transition of Florida
Reliability Coordinating Council’s (“FRCC”) registered entities to SERC following FRCC’s July
1, 2019, dissolution as a regional entity; (iii) clarifying a technical term used in the regional
Reliability Standard; and (iv) aligning requirement language with the current continent-wide
NERC Reliability Standard, PRC-006-5. 3 Proposed PRC-006-SERC-03 is more stringent than the
related continent-wide NERC Reliability Standard PRC-006-5, which does not include detailed
plan criteria or a maximum timeframe to implement changes to a UFLS scheme.
1
Rules Concerning Certification of the Electric Reliability Organization; and Procedures for the Establishment,
Approval, and Enforcement of Electric Reliability Standards, Order No. 672, 114 FERC 61,104, order on reh’g,
Order No. 672-A, 114 FERC 61,328 (2006) (“Order No. 672”).
2
Order No. 672 at P 321. See also, Id. at P 324.
3
PRC-006-SERC-02 was approved by the Commission on October 16, 2017. See N. Am. Elec. Reliability Corp.,
Docket No. RD17-9-000 (October 16, 2017) (delegated letter order)

2. Proposed Reliability Standards must be applicable only to users, owners and
operators of the Bulk-Power System, and must be clear and unambiguous as to what
is required to comply. 4
Proposed PRC-006-SERC-03 does not change the existing Applicability section of PRC006-SERC-02, which states that the Reliability Standard is only applicable to Planning
Coordinators, UFLS entities, and Generator Owners within the SERC region. It is clear and
unambiguous as to what is required to comply.
3. Proposed Reliability Standards must include clear and understandable consequences
and a range of penalties (monetary and/or non-monetary) for a violation. 5
Proposed PRC-006-SERC-03 does not have any material changes to the VRFs and VSLs
approved for PRC-006-SERC-02. The only proposed change to the VSLs is a conforming change
(changing “to SERC” to “to SERC or Planning Coordinator” to match the proposed language in
Requirement 8) that does not alter the substance of the VSLs. The VSLs assigned for each
Requirement ensure uniformity and consistency in the determination of penalties. The VSLs do
not use any ambiguous terminology. For these reasons, the proposed regional Reliability Standard
includes clear and understandable consequences in accordance with Order No. 672. Upon approval
by the Commission, the ranges of penalties for violations will continue to be based on the
applicable VRF and VSL in accordance with the sanctions table and the supporting penalty
determination process described in the Commission-approved NERC Sanction Guidelines,
Appendix 4B to the NERC Rules of Procedure.

4

Order No. 672 at P 322. See also, Id. at P 325. The proposed Reliability Standard should be clear and unambiguous
regarding what is required and who is required to comply. Users, owners, and operators of the Bulk-Power System
must know what they are required to do to maintain reliability.
5
Id. at P 326. The possible consequences, including range of possible penalties, for violating a proposed Reliability
Standard should be clear and understandable by those who must comply.

4. Proposed Reliability Standards must identify clear and objective criterion or measure
to compliance, so that it can be enforced in a consistent and non-preferential manner. 6
Proposed PRC-006-SERC-03 identifies clear and objective criterion or measure for
compliance so that it can be enforced in a consistent and non-preferential manner. The regional
Reliability Standard contains individual measures that support the Requirements by plainly
identifying how the Requirements will be assessed and enforced. These measures continue to
ensure that the Requirements will be assessed and enforced in a clear, consistent, and nonpreferential manner, without prejudice to any party.
5. Proposed Reliability Standards should achieve a reliability goal effectively and
efficiently- but do not necessarily have to reflect “best practices” without regard to
implementation cost or historical regional infrastructure design. 7
Proposed PRC-006-SERC-03 achieves its reliability goals effectively and efficiently. The
proposed revisions provide greater flexibility and clarity to registered entities responsible for
compliance. The proposed regional Reliability Standard builds on the Bulk-Power System
reliability protections provided by the NERC automatic UFLS standard by adding specificity for
the SERC region.
6. Proposed Reliability Standards cannot be “lowest common denominator,” i.e., cannot
reflect a compromise that does not adequately protect Bulk-Power System reliability.
Proposed Reliability Standards can consider costs to implement for smaller entities,
but not at consequence of less than excellence in operating system reliability.8
Proposed PRC-006-SERC-03 does not reflect a compromise that does not adequately
protect Bulk-Power System reliability.
7. Proposed Reliability Standards must be designed to apply throughout North America
to the maximum extent achievable with a single Reliability Standard while not
favoring one geographic area or regional model. It should take into account regional
variations in the organization and corporate structures of transmission owners and

6

Id. at P 327.
Id. at P 328.
8
Id. at P 329-30.
7

operators, variations in generation fuel type and ownership patterns, and regional
variations in market design if these affect the proposed Reliability Standard. 9
As a regional Reliability Standard, proposed PRC-006-SERC-03 is designed to work in
conjunction with NERC Reliability Standard PRC-006-5 while accommodating differences in
system transmission and distribution topology among SERC Planning Coordinators and will be
enforceable for registered entities within the SERC region.
8. Proposed Reliability Standards should cause no undue negative effect on competition
or restriction of the grid beyond any restriction necessary for reliability. 10
The proposed regional Reliability Standard would not restrict competition or available
transmission capability beyond what is necessary for reliability.
9. The implementation time for the proposed Reliability Standard is reasonable. 11
The implementation time for the proposed regional Reliability Standard is reasonable.
Because proposed PRC-006-SERC-03 provides additional flexibility and clarity rather than
imposing any new obligations on registered entities, an effective date of the first day of the first
calendar quarter after FERC approval is reasonable.
10. The Reliability Standard was developed in an open and fair manner and in
accordance with the Commission-approved Reliability Standard development
process. 12
The proposed regional Reliability Standard was developed in accordance with NERC’s and
SERC’s Commission-approved processes for developing and approving Reliability Standards.
SERC develops regional Reliability Standards in accordance with the SERC regional Reliability
Standards Development Procedure. The development process is open to any person who is an

9

Id. at P 331.
Id. at P 332.
11
Id. at P 333.
12
Id. at P 334.
10

interested stakeholder. For more detail, please see the complete development history included as
Exhibit D.
11. NERC must explain any balancing of vital public interests in the development of
proposed Reliability Standards. 13
NERC and SERC have not identified competing vital public interests with respect to the
request for approval of the proposed regional Reliability Standard, and no comments were received
during the development of the proposed regional Reliability Standard indicating conflicts with
other vital public interests.
12. Proposed Reliability Standards must consider any other appropriate factors. 14
No other factor relevant to whether the proposed regional Reliability Standard is just and
reasonable was identified.

13
14

Id. at P 335.
Id. at P 323.

Exhibit D
Summary of Development History and Complete Record of Development

RELIABILITY | RESILIENCE | SECURITY

Exhibit D
Summary of Development History
The development record for proposed regional Reliability Standard PRC-006-SERC-03 is
summarized below.
I.

Overview of the SERC Standards Drafting Team Review
When evaluating a proposed Reliability Standard, the Commission is expected to give “due

weight” to the technical expertise of the ERO. 1 For proposed regional Reliability Standard PRC006-SERC-03, the technical expertise of the ERO is derived from the SERC Standards Drafting
Team (“SDT”) that reviewed the submitted Standard Authorization Request (“SAR”). A roster of
the SERC SDT is included in Exhibit E.
II.

Standard Development History
A. Standard Authorization Request Development
The submission of the SAR by SERC’s Dynamics Working Group resulted from a review

of PRC-006-SERC-02 after the addition of FRCC’s registered entities to SERC and prior to the
regional Reliability Standard’s periodic five year review. On February 27, 2020, SERC’s
Dynamics Working Group submitted the SAR for modification to PRC-006-SERC-02. The SERC
SDT then reviewed the SAR and recommended the proposed revisions in PRC-006-SERC-03 as a
result.
B. Initial Comment Period and Ballot
SERC posted proposed regional Reliability Standard PRC-006-SERC-03, a draft
implementation plan, and supporting documents for comment from February 19, 2021 through
March 22, 2021. SERC received one set of favorable comments that supported the revisions to the

1

Section 215(d)(2) of the Federal Power Act; 16 U.S.C. §824o(d)(2) (2018).

proposed regional Reliability Standard. The submission also included a minor, non-substantive
comment regarding a typographical error in a headings version numbering and update to Table 1.
The SDT considered and adopted these changes to proposed regional Reliability Standard PRC006-SERC-03.
C. Final Ballot and SERC Board of Directors Approval
On April 21, 2021, notice was provided to SERC’s Registered Ballot Body that voting
would occur electronically from May 6, 2021, through May 17, 2021. On May 17, 2021, proposed
regional Reliability Standard PRC-006-SERC-03 received 100 percent affirmative votes from
SERC stakeholders participating in the final balloting. During the final ballot SERC received three
sets of non-substantive comments. One of the comments was identical to the comment received
during the initial commenting period, in which the SDT considered and adopted. Additionally, one
of the remaining comments was in support of the proposed revisions, and the other was a nonmaterial suggestion regarding the numbering of the Requirements after the retirement of
Requirement R1 and R7. The SDT determined that no further changes were needed in
consideration of the non-substantive comments as they had either previously been incorporated or
the revision would lead to inconsistent NERC Standard drafting practices when Requirements are
removed. The SERC Board of Directors approved the standard on June 24, 2021.
D. NERC Comment Period and Board of Trustees Approval
NERC posted proposed regional Reliability Standard PRC-006-SERC-03 for a 45-day
public comment period from August 25, 2021 to October 8, 2021. Six sets of comments supporting
the proposed regional Reliability Standard were received. The NERC Board of Trustees adopted
proposed regional Reliability Standard PRC-006-SERC-03 on November 4, 2021.

Complete Record of Development

SERC Reliability Corporation (SERC) 

PRC‐006‐SERC‐03 

Automatic 
Underfrequency 
Load Shedding 

SERC Regional 
Reliability 
Standards 

08/25/21 ‐ 
10/08/21 

Info [1] 
PRC‐006‐SERC‐03 
Clean[2] | Redline[3] 
Summary of 
Changes [4]   
Implementation Plan 
[5] 
Unofficial Comment 
Form (Word) [6] 
Submit Comments 
Comments Received 
[7] 

ÿ

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Unofficial Comment Form
Regional Reliability Standard | PRC-006-SERC-03
DO NOT use this form for submitting comments. Use the Standards Balloting and Commenting System 
(SBS) to submit comments on the Regional Reliability Standard, PRC‐006‐SERC‐03 – Automatic 
Underfrequency Load Shedding by 8 p.m. Eastern, Friday, October 8, 2021.  

Documents and information about this project are available on the SERC Regional Reliability Standards 
page. If you have questions, contact Senior Reliability Standards Analyst, Kimberlin Harris (via email) or at 
(404) 446‐9794.  

Background Information

The revisions to the PRC‐006‐SERC‐02 Automatic Underfrequency Load Shedding (UFLS) include: 
1. Removal of the requirement (Requirement R1) to allow Planning Coordinators to build a 
contiguous island, due to entities moving from one Planning Coordinator to another and no 
longer being contiguous with the existing island; 
2. Modification of UFLS settings to account for the existing settings of the Florida peninsula in 
Requirement R2; 
3. Addition of a second method to calculate the percent of load shed based on existing Florida 
peninsula practices in Requirements R4 and R5; 
4. Removal of the SERC UFLS Database requirement, Requirement R7, to remove an unnecessary 
burden on entities; and 
5. Addition of Planning Coordinator as a requestor in Requirement R8 to facilitate post‐event 
analysis of frequency disturbances. 
NERC Criteria for Developing or Modifying a Regional Reliability Standard

Each regional difference (i.e. Regional Reliability Standard or Variance) shall be: (1) is more stringent than 
the continent‐wide Reliability Standard, including a regional difference that addresses matters that the 
continent‐wide reliability standard does not; or (2) necessitated by a physical difference in the bulk power 
system. Regional Reliability Standards and Variances shall provide for as much uniformity as possible with 
Reliability Standards across the interconnected bulk power system of the North American continent. 
Regional Reliability Standards and Variances, when approved by FERC and applicable authorities in Mexico 
and Canada, shall be made part of the body of NERC Reliability Standards and shall be enforced upon all 
applicable Bulk Power System owners, operators, and users within the applicable area, regardless of 
membership in the region. 

The approval process for a proposed Regional Reliability Standard or Variance, or the retirement of an 
existing standard or Variance, requires NERC to publicly notice and request comment. Comments shall be 

RELIABILITY | RESILIENCE | SECURITY

permitted only on the following criteria (technical aspects of the standard are vetted through the regional 
standards development process): 

Unfair or Closed Process – The Regional Reliability Standard was not developed in a fair and open process 
that provided an opportunity for all interested parties to participate. Although a NERC‐approved Regional 
Reliability Standards development procedure shall be presumed to be fair and open, objections could be 
raised regarding the implementation of the procedure.  

Adverse Reliability or Commercial Impact on Other Interconnections – The Regional Reliability Standard 
would have a significant adverse impact on reliability or commerce in other interconnections.  

Deficient Standard – The Regional Reliability Standard fails to provide a level of reliability of the Bulk 
Power System such that the Regional Reliability Standard would be likely to cause a serious and 
substantial threat to public health, safety, welfare, or national security.  

Adverse Impact on Competitive Markets within the Interconnection – The Regional Reliability Standard 
would create a serious and substantial burden on competitive markets within the interconnection that is 
not necessary for reliability. 

Questions

1. Do you agree the proposed Regional Reliability Standard was developed in a fair and open process, 
using the associated Regional Reliability Standards Development Procedure?  
 Yes  
 No  
Comments:            

2. Does the proposed Regional Reliability Standard pose an adverse impact to reliability or commerce 
in a neighboring region or interconnection?     
 Yes  
 No  
Comments:            

3. Does the proposed Regional Reliability Standard pose a serious and substantial threat to public 
health, safety, welfare, or national security?   
 Yes  
 No  
Comments:            

Unofficial Comment Form  
Regional Reliability Standard PRC‐006‐SERC‐03 | August 25‐October 8, 2021 

2 

4. Does the proposed Regional Reliability Standard pose a serious and substantial burden on 
competitive markets within the interconnection that is not necessary for reliability? 
 Yes  
 No  
Comments:            

5. Does the proposed Regional Reliability Standard meet at least one of the following criteria? 


The proposed Regional Reliability Standard has more specific criteria for the same 
requirements covered in a continent‐wide standard. 



The proposed Regional Reliability Standard has requirements that are not included in the 
corresponding continent‐wide standard. 



The proposed regional difference is necessitated by a physical difference in the Bulk Power 
System. 
 Yes  
 No  

Comments:            

Unofficial Comment Form  
Regional Reliability Standard PRC‐006‐SERC‐03 | August 25‐October 8, 2021 

3 

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February 19, 2021
PRC-006-SERC STANDARD COMMENTS & REGISTERED BALLOT BODY
FROM THE DESK OF: Dave Krueger
TO: Primary & Alternate Compliance Contacts, Engineering Committee, Operating
Committee, and Critical Infrastructure Protection Committee Members
Commenting is now available for the proposed PRC-006-SERC-03 changes. The clean and
red-line standard, Implementation Plan, and Mapping document are accessible from the link
below.
Formation of the Registered Ballot Body is available now through Monday, March, 22, 2021
at 8:00 p.m. Eastern. The Registered Ballot Body form may be accessed from the link below.
Background:
The requested changes address the following three issues:
1. Elimination of the SERC UFLS database. SERC is no longer required to maintain
the database and no entity uses it.
2. The change allows the Planning Coordinators the opportunity to build their study
islands so they are contiguous.
3. With the inclusion of the former Florida Reliability Coordinating Council entities into
SERC, changes are needed to ensure the UFLS settings for Florida entities are not in
violation of the SERC standard.
Link to the Clean and Redlined of the Standard and associated documentation, Commenting
form, and Registered Ballot Body Form.
Please complete and submit to regstd@serc1.org by March 22, 2021.
Questions may be directed to: Dave Krueger / 704-414-5260
All other questions may be directed to SERC Support.
3701 Arco Corporate Drive, Suite 300, Charlotte, NC 28273 • Office: 704-357-7372 • Fax: 704-357-7914 • www.serc1.org

SERC R E L I A B I L I T Y CO R P O R AT I O N
Comment Form for PRC-006-SERC-03
Please use this form to submit comments on the PRC-006-SERC-03 Standard. Comments
must be submitted by March 18, 2021. You must submit the completed form via email to
SERC Regional Standards (regstd@serc1.org) with the words PRC-006-SERC-03 in the
subject line. If you have questions, please contact James (Dave) Krueger,
jkrueger@serc1.org.
DO:

Do use punctuation and capitalization as needed.
Do use more than one form if responses do not fit in the spaces provided.
Do submit any formatted text or markups in a separate WORD file.

DO NOT: Do not submit a response in an unprotected copy of this form.
Commenter Information
Group Name (if applicable):
Contact Name: Dennis Chastain
Organization: Tennessee Valley Authority
Telephone:

423-751-3950

Email:

dwchastain@tva.gov

Background:
The revisions to the PRC-006-SERC-2 Automatic Underfrequency Load Shedding address the
following concerns.
1. Due to entities moving from one Planning Coordinator to another and no longer being
contiguous with the existing island, there is no longer a need for the requirement that
allows PCs to build a contiguous island.
2. Due to the geography of the Florida peninsula, UFLS settings (of Florida peninsula
entities) are different from the rest of the SERC entities. These settings are in violation of
the SERC UFLS standard; modifying the standard will ensure the reliable settings of
Florida peninsula entities do not violate the standard.
3. Elimination of the SERC UFLS Database will remove an unnecessary burden on the
entities.

3701 Arco Corporate Drive, Suite 300, Charlotte, NC 28273 • Office: 704-357-7372 • Fax: 704-357-7914 • www.serc1.org

Page 2

Comment Form for PRC-006-SERC-03
Please Enter All Comments in Simple Text Format.
Insert a “check” mark in the appropriate boxes by double-clicking the gray areas.
1. Do you agree with the revisions to the standard to remove R1, the requirement to make
each island contiguous?
Yes
No
Comments:
2. Do you agree with the revisions to the standard to update R2, R4, and R5 to ensure
Florida peninsula entities’ settings are reliable?
Yes
No
Comments:
3. Do you agree with the revisions to the standard to remove R7 and the SERC UFLS
Database?
Yes
No
Comments:
4. Please identify anything you believe needs to be modified before this revision of the
document can be approved.
Comments:
5. Please provide any other comments on this revision of the document.
Comments: The header on pdf pages 8-17 needs to be updated to show version 03. All the information in the row for Requirement R7 in Table 1 needs to be completely
deleted (see the bottom of pdf page 10). The row for Requirement R8 in Table 1 needs
to be updated to show the changes for R8 – i.e. adding the Planning Coordinator.

April 21, 2021
PRC-006-SERC-03 | NOTICE OF FINAL BALLOT MAY 6, 2021 THROUGH MAY 17, 2021
FROM THE DESK OF: Dave Krueger
TO: SERC Registered Ballot Body
You are receiving this notification as a member of the SERC Registered Ballot Body and in
accordance with SERC’s Regional Reliability Standards Development Procedure. All
interested members of the Registered Ballot Body are invited to join the Ballot Pool and cast a
vote on changes to PRC-006-SERC-03. Voting will take place electronically beginning 8:00
a.m. Eastern, Thursday, May 6, 2021, through 8:00 p.m. Eastern, Monday, May 17, 2021.
The current Registered Ballot Pool can be viewed here. Any member of the Registered Ballot
Body may join or drop out of the Ballot pool until the ballot period begins at 8:00 a.m. Eastern,
Thursday, May 6, 2021.
The changes and associated documents can be found here.
A link to vote on PRC-006-SERC-03 will be sent to the Ballot Pool participates no later than
8:00 a.m. Eastern on Thursday, May 6, 2021.

Questions may be directed to: Dave Krueger / 704-414-5260
All other questions may be directed to SERC Support.
3701 Arco Corporate Drive, Suite 300, Charlotte, NC 28273 • Office: 704-357-7372 • Fax: 704-357-7914 • www.serc1.org

2021 Ballot Body

Q1 What is your name (first and last)?
Answered: 31

Skipped: 0

#

RESPONSES

DATE

1

Tony Kroskey

5/17/2021 5:04 PM

2

Scott Miller

5/17/2021 12:27 PM

3

Scott Brame

5/17/2021 9:12 AM

4

Truong Le

5/14/2021 11:32 AM

5

Lawrence D Hopkins Jr

5/13/2021 11:35 AM

6

Marjorie Parsons

5/13/2021 11:14 AM

7

Dennis Chastain

5/13/2021 10:58 AM

8

Donna Johnson

5/13/2021 10:49 AM

9

Rene' Free

5/13/2021 8:19 AM

10

Larry Watt

5/13/2021 7:15 AM

11

Charles Hill

5/13/2021 6:57 AM

12

Silvia Mitchell

5/12/2021 1:45 PM

13

Eric Lorigan

5/12/2021 9:29 AM

14

Nestor Vega

5/12/2021 7:46 AM

15

Amber Skillern

5/11/2021 10:15 AM

16

David Byrne

5/10/2021 2:14 PM

17

Linn Oelker

5/10/2021 10:02 AM

18

Jay Farrington

5/9/2021 7:27 PM

19

Laura Lee

5/8/2021 2:38 PM

20

Keith Steinmetz

5/7/2021 1:38 PM

21

Dania Colon

5/7/2021 11:51 AM

22

Lee Shuster

5/7/2021 10:39 AM

23

Todd Bennett

5/7/2021 9:46 AM

24

Daniel Fain

5/7/2021 8:49 AM

25

Bryan Garnett

5/7/2021 8:23 AM

26

Joe Spencer

5/6/2021 3:30 PM

27

Thomas Lyons

5/6/2021 3:15 PM

28

John Babik

5/6/2021 9:27 AM

29

Scott McGough

5/6/2021 9:22 AM

30

Greg Davis

5/6/2021 8:46 AM

31

Richard Gilbert

5/6/2021 8:12 AM

1/5

2021 Ballot Body

Q2 What is the name of your company?
Answered: 31

Skipped: 0

#

RESPONSES

DATE

1

Brazos Electric Power Cooperative

5/17/2021 5:04 PM

2

MEAG Power

5/17/2021 12:27 PM

3

North Carolina Electric Membership Corporation

5/17/2021 9:12 AM

4

FMPA

5/14/2021 11:32 AM

5

Piedmont EMC

5/13/2021 11:35 AM

6

Tennessee Valley Authority

5/13/2021 11:14 AM

7

Tennessee Valley Authority

5/13/2021 10:58 AM

8

Oglethorpe Power Corporation

5/13/2021 10:49 AM

9

South Carolina Public Service Authority (Santee Cooper)

5/13/2021 8:19 AM

10

Lakeland Electric

5/13/2021 7:15 AM

11

Washington-St. Tammany Electric Cooperative

5/13/2021 6:57 AM

12

NextEra Energy

5/12/2021 1:45 PM

13

Seminole Electric Cooperative

5/12/2021 9:29 AM

14

City of Bartow

5/12/2021 7:46 AM

15

East Kentucky Power Cooperative

5/11/2021 10:15 AM

16

City of Tallahassee

5/10/2021 2:14 PM

17

LG&E and KU Services Company

5/10/2021 10:02 AM

18

PowerSouth Energy Cooperative

5/9/2021 7:27 PM

19

Duke Energy

5/8/2021 2:38 PM

20

LG&E/KU

5/7/2021 1:38 PM

21

Orlando Utilities Commission

5/7/2021 11:51 AM

22

Duke Energy Florida

5/7/2021 10:39 AM

23

AECI

5/7/2021 9:46 AM

24

Duke Energy Carolinas

5/7/2021 8:49 AM

25

Duke Energy

5/7/2021 8:23 AM

26

ElecriCities

5/6/2021 3:30 PM

27

Owensboro Municipal Utilities

5/6/2021 3:15 PM

28

JEA

5/6/2021 9:27 AM

29

Georgia System Operations Corporation

5/6/2021 9:22 AM

30

Georgia Transmission Corporation (GTC)

5/6/2021 8:46 AM

31

Florida Reliability Coordinating Council, Inc.

5/6/2021 8:12 AM

2/5

2021 Ballot Body

Q3 Choose your company's sector from the list.
Answered: 31

Skipped: 0

Cooperative

Federal/State
Investor-Owned
Utility
ISO-RTO

Marketer
Merchant
Electricity...
Municipal
0%

10%

20%

30%

40%

50%

60%

70%

80%

90% 100%

ANSWER CHOICES

RESPONSES

Cooperative

35.48%

11

Federal/State

9.68%

3

Investor-Owned Utility

22.58%

7

ISO-RTO

3.23%

1

Marketer

0.00%

0

Merchant Electricity Generator

0.00%

0

Municipal

29.03%

9

TOTAL

31

3/5

2021 Ballot Body

Q4 Do you approve of the proposed changes in PRC-006-SERC-03?
Answered: 31

Skipped: 0

Yes

No

0%

10%

20%

30%

40%

50%

60%

70%

80%

ANSWER CHOICES

RESPONSES

Yes

100.00%

No

0.00%

Total Respondents: 31

4/5

90% 100%

31
0

2021 Ballot Body

Q5 Please list any comments below.
Answered: 3

Skipped: 28

#

RESPONSES

DATE

1

The header on pdf pages 8-17 needs to be updated to show version -03. All the information in
the row for Requirement R7 in Table 1 needs to be completely deleted (see the bottom of pdf
page 10). The row for Requirement R8 in Table 1 needs to be updated to show the changes for
R8 – i.e. adding the Planning Coordinator. See Dennis Chastain (Federal sector) for further
comments from Tennessee Valley Authority

5/13/2021 11:14 AM

2

I suggest that R1 and R7 be retained in the standard as placeholders with the word “Reserved”
by them (reference FAC-008-5 R4, R5 and R7 as a NERC standard example). Alternatively,
renumber the requirements as R1-R6. Also suggest that the rows formerly addressing R1 and
R7 be removed from Table 1. The row where R1 used to be is blank, and the row where R7
used to be is still partially filled in with Violation Severity Level descriptions for the retired R7.

5/13/2021 10:58 AM

3

Yes, agree with Standard language

5/7/2021 8:49 AM

5/5

Exhibit E
Standard Drafting Team Roster for PRC-006-SERC-03 - Automatic Underfrequency Load Shedding

RELIABILITY | RESILIENCE | SECURITY

PRC-006-SERC Standard Drafting Team Committee Members

Name
Alex Graffeo
Amy Duffield
Andrew Arana
Andrew Underwood
Anthony Noisette
Armin Karabegovic
Austin McLimore
Benjamin Garffie
Brian Bell
Brian Leach
Brian Ulmer
Bryan Garst
Carl Turner
Chris Bradley
Chris Daniels
Darrin Adams
Edin Bajagilovic
Ejovi Ovhori
Eric Worts
Fabio Rodriguez
Hanna Georgos
Hasan Matin
Hugues Balde
Ian Gray
James Simms
James Vermillion
Jason Goar
Jeff Jones
Jennifer Bell
John Lee
John Sullivan
Jonathan Glidewell

Company
Tallahassee, City of
Seminole Electric Cooperative
Florida Power & Light Company
Dominion Energy South Carolina, Inc.
South Carolina Public Service Authority
City of Columbia, MO
Owensboro, KY Municipal Utilities
LG&E and KU Services Company
City of Springfield, IL - CWLP
Owensboro, KY Municipal Utilities
Dominion Energy South Carolina, Inc.
Big Rivers Electric Corporation
City of Ocala Electric Utility
Big Rivers Electric Corporation
City of Springfield, IL - CWLP
Subregion
JEA
Duke Energy Carolinas, LLC
City of Columbia, MO
Duke Energy Florida, LLC
Tampa Electric Company
Orlando Utilities Commission
Tallahassee, City of
Cleco Corporate Holdings LLC
Cleco Corporate Holdings LLC
Associated Electric Cooperative, Inc.
Cooperative Energy
Southern Illinois Power Cooperative
Southern Company Services, Inc. - Trans
Florida Municipal Power Agency
Ameren Services Company
Southern Company Services, Inc. - Trans

Position
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member

Kanchan Saxena
Kayla Allemang
Ken Wofford
Ken Wofford
Khalid Osman
Khalid Osman
Kristy Baksh
Kyle Clifford
Larry Burns
Matthew Fullerton
Michael Norman
Nathan Bradley
Patrick Harwood
Paul Geer
Pranaya Neupane
Rachel Ibuado
Rick Foster
Robbie Bottoms
Robert Bartley
Robert DeMelo
Scott Goodwin
Stephen Lowe
Tao He
Timothy Poole
Tom Cain
Venkat Kolluri
William Quaintance
Yan Xia
Yishan Zhao
Youn Chu
Youn Chu
Zack Stica
Zakia El Omari
Anton Salib

Entergy
Seminole Electric Cooperative
Officer
Georgia Transmission Corporation
Alcoa Power Generating Inc. - Tapoco Division
Cube Hydro Carolinas, LLC
Tampa Electric Company
PJM Interconnection, LLC
Southern Illinois Power Cooperative
Alcoa Power Generating Inc. - Tapoco Division
East Kentucky Power Cooperative
East Kentucky Power Cooperative
Florida Reliability Coordinating Council, Inc.
Florida Power & Light Company
JEA
GridLiance Holdco, LP
Ameren Services Company
Tennessee Valley Authority
Dominion Energy South Carolina, Inc.
Seminole Electric Cooperative
Midcontinent Independent System Operator, Inc.
South Carolina Public Service Authority
PJM Interconnection, LLC
Cube Hydro Carolinas, LLC
Tennessee Valley Authority
Entergy
Duke Energy Progress, LLC
LG&E and KU Services Company
Duke Energy Carolinas, LLC
Officer
Duke Energy Progress, LLC
Associated Electric Cooperative, Inc.
Georgia Transmission Corporation
Midcontinent Independent System Operator, Inc.

Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member
Member

Steven Hataway
Juan Villar
Dennis Fuentes Pedrosa
Dave Krueger
Courtney Ballard
Gaurav Karandikar

Florida Power & Light Company
FERC
FERC
SERC
SERC
SERC

Member
Observer
Observer
SERC Support Staff
SERC Support Staff
SERC Support Staff