FAC-008-1 OLD Reliability Standard

Standard FAC-008-1 — Facility Ratings Methodology

A. Introduction
1.

Title:

Facility Ratings Methodology

2.

Number:

FAC-008-1

3.

Purpose:
To ensure that Facility Ratings used in the reliable planning and operation of the
Bulk Electric System (BES) are determined based on an established methodology or
methodologies.

4.

Applicability
4.1. Transmission Owner
4.2. Generator Owner

5.

Effective Date:

August 7, 2006

B. Requirements
R1.

The Transmission Owner and Generator Owner shall each document its current methodology
used for developing Facility Ratings (Facility Ratings Methodology) of its solely and jointly
owned Facilities. The methodology shall include all of the following:
R1.1.

A statement that a Facility Rating shall equal the most limiting applicable Equipment
Rating of the individual equipment that comprises that Facility.

R1.2.

The method by which the Rating (of major BES equipment that comprises a Facility)
is determined.
R1.2.1. The scope of equipment addressed shall include, but not be limited to,
generators, transmission conductors, transformers, relay protective devices,
terminal equipment, and series and shunt compensation devices.
R1.2.2. The scope of Ratings addressed shall include, as a minimum, both Normal
and Emergency Ratings.

R1.3.

Consideration of the following:
R1.3.1. Ratings provided by equipment manufacturers.
R1.3.2. Design criteria (e.g., including applicable references to industry Rating
practices such as manufacturer’s warranty, IEEE, ANSI or other standards).
R1.3.3. Ambient conditions.
R1.3.4. Operating limitations.
R1.3.5. Other assumptions.

R2.

The Transmission Owner and Generator Owner shall each make its Facility Ratings
Methodology available for inspection and technical review by those Reliability Coordinators,
Transmission Operators, Transmission Planners, and Planning Authorities that have
responsibility for the area in which the associated Facilities are located, within 15 business
days of receipt of a request.

R3.

If a Reliability Coordinator, Transmission Operator, Transmission Planner, or Planning
Authority provides written comments on its technical review of a Transmission Owner’s or
Generator Owner’s Facility Ratings Methodology, the Transmission Owner or Generator
Owner shall provide a written response to that commenting entity within 45 calendar days of
receipt of those comments. The response shall indicate whether a change will be made to the

Adopted by Board of Trustees: February 7, 2006
Effective Date: August 7, 2006

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Standard FAC-008-1 — Facility Ratings Methodology

Facility Ratings Methodology and, if no change will be made to that Facility Ratings
Methodology, the reason why.
C. Measures
M1. The Transmission Owner and Generator Owner shall each have a documented Facility Ratings
Methodology that includes all of the items identified in FAC-008 Requirement 1.1 through
FAC-008 Requirement 1.3.5.
M2. The Transmission Owner and Generator Owner shall each have evidence it made its Facility
Ratings Methodology available for inspection within 15 business days of a request as follows:
M2.1

The Reliability Coordinator shall have access to the Facility Ratings Methodologies
used for Rating Facilities in its Reliability Coordinator Area.

M2.2

The Transmission Operator shall have access to the Facility Ratings Methodologies
used for Rating Facilities in its portion of the Reliability Coordinator Area.

M2.3

The Transmission Planner shall have access to the Facility Ratings Methodologies
used for Rating Facilities in its Transmission Planning Area.

M2.4

The Planning Authority shall have access to the Facility Ratings Methodologies used
for Rating Facilities in its Planning Authority Area.

M3. If the Reliability Coordinator, Transmission Operator, Transmission Planner, or Planning
Authority provides documented comments on its technical review of a Transmission Owner’s
or Generator Owner’s Facility Ratings Methodology, the Transmission Owner or Generator
Owner shall have evidence that it provided a written response to that commenting entity within
45 calendar days of receipt of those comments. The response shall indicate whether a change
will be made to the Facility Ratings Methodology and, if no change will be made to that
Facility Ratings Methodology, the reason why.
D. Compliance
1.

Compliance Monitoring Process
1.1. Compliance Monitoring Responsibility
Regional Reliability Organization
1.2. Compliance Monitoring Period and Reset Time Frame
Each Transmission Owner and Generator Owner shall self-certify its compliance to the
Compliance Monitor at least once every three years. New Transmission Owners and
Generator Owners shall each demonstrate compliance through an on-site audit conducted
by the Compliance Monitor within the first year that it commences operation. The
Compliance Monitor shall also conduct an on-site audit once every nine years and an
investigation upon complaint to assess performance.
The Performance-Reset Period shall be 12 months from the last finding of noncompliance.
1.3. Data Retention
The Transmission Owner and Generator Owner shall each keep all superseded portions of
its Facility Ratings Methodology for 12 months beyond the date of the change in that
methodology and shall keep all documented comments on the Facility Ratings
Methodology and associated responses for three years. In addition, entities found noncompliant shall keep information related to the non-compliance until found compliant.

Adopted by Board of Trustees: February 7, 2006
Effective Date: August 7, 2006

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Standard FAC-008-1 — Facility Ratings Methodology

The Compliance Monitor shall keep the last audit and all subsequent compliance records.
1.4. Additional Compliance Information
The Transmission Owner and Generator Owner shall each make the following available
for inspection during an on-site audit by the Compliance Monitor or within 15 business
days of a request as part of an investigation upon complaint:

2.

1.4.1

Facility Ratings Methodology

1.4.2

Superseded portions of its Facility Ratings Methodology that had been replaced,
changed or revised within the past 12 months

1.4.3

Documented comments provided by a Reliability Coordinator, Transmission
Operator, Transmission Planner or Planning Authority on its technical review of
a Transmission Owner’s or Generator Owner’s Facility Ratings methodology,
and the associated responses

Levels of Non-Compliance
2.1. Level 1:
exists:

There shall be a level one non-compliance if any of the following conditions

2.1.1

The Facility Ratings Methodology does not contain a statement that a Facility
Rating shall equal the most limiting applicable Equipment Rating of the
individual equipment that comprises that Facility.

2.1.2

The Facility Ratings Methodology does not address one of the required
equipment types identified in FAC-008 R1.2.1.

2.1.3

No evidence of responses to a Reliability Coordinator’s, Transmission Operator,
Transmission Planner, or Planning Authority’s comments on the Facility Ratings
Methodology.

2.2. Level 2:
The Facility Ratings Methodology is missing the assumptions used to
determine Facility Ratings or does not address two of the required equipment types
identified in FAC-008 R1.2.1.
2.3. Level 3:
The Facility Ratings Methodology does not address three of the required
equipment types identified in FAC-008-1 R1.2.1.
2.4. Level 4:
The Facility Ratings Methodology does not address both Normal and
Emergency Ratings or the Facility Ratings Methodology was not made available for
inspection within 15 business days of receipt of a request.
E. Regional Differences
None Identified.
Version History
Version
1

Date

Action

Change Tracking

01/01/05

1.

01/20/05

2.

3.

Lower cased the word “draft” and
“drafting team” where appropriate.
Changed incorrect use of certain
hyphens (-) to “en dash” (–) and “em
dash (—).”
Changed “Timeframe” to “Time

Adopted by Board of Trustees: February 7, 2006
Effective Date: August 7, 2006

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Standard FAC-008-1 — Facility Ratings Methodology

Frame” and “twelve” to “12” in item
D, 1.2.

Adopted by Board of Trustees: February 7, 2006
Effective Date: August 7, 2006

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