W. Shannon Black
Manager, Standards Processes
(503) 307-5782
sblack@wecc.biz
MEMO
Date:
February 4, 2015
To:
WECC Standards Committee (WSC)
Subject:
Retirement of MOD-001-WECC-CRT-0 (MOD)
WECC Criterion MOD-001-WECC-CRT-0 (AKA: EMSWG-ST-001-1)
Reliability Data Exchange
The WECC Standards Committee (WSC) is being asked to forward the MOD to the WECC Board of
Directors with a request to retire the document.
On October 13, 2013, the WECC Operating Committee (OP) reviewed the MOD and unanimously
accepted a recommendation from the Energy Management System Work Group (EMSWG) and the
Critical Infrastructure and Information Management Subcommittee (CIIMS) to retire the document.
(See Attachments A and B)
The review concluded the document was last updated in 2006 and its substance is either covered in
NERC Standards or is no longer essential for reliability.
In accordance with the Step 13 of the Reliability Standards Development Procedures, “Upon
determining that the subject matter [of a WECC Criterion] is duplicated in a NERC Reliability Standard,
and that retirement of the [document] will not cause a reliability gap…the WSC may retire [the
document] on its own initiative without further due process.”
WECC staff is asking for a motion to forward MOD-001-WECC-CRT-0 (MOD), Reliability Data Exchange,
a WECC Criterion, to the WECC Board of Directors (Board) with a request for retirement.
Best regards,
W. Shannon Black
WECC Manager, Standards Processes
WESTERN ELECTRICITY COORDINATING COUNCIL
155 North 400 West, Suite 200
Salt Lake City, Utah 84103-1114
Request to Retire MOD-001 – a WECC Criterion
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Attachment A
Operating Committee Determination to Retire
Minutes Excerpt
October 13, 2013, Operating Committee Meeting Minutes
Item 5: MOD-001-WECC-RBP-0
Shannon Black provided a presentation on MOD-01-WECC-RBP-0 (Updated Hyperlink).
Mr. Black has been in the process of reviewing all Regional Business Practices and
Criteria. In previous discussions in several groups, including the Critical Infrastructure and
Information Management Subcommittee (CIIMS), WECC members have wondered what to
do with the ambiguous language contained in the Regional Business Practice (RBP).
Mr. Black presented three possible courses of action for the OC to consider:
1) Redraft the document,
2) Reclassify the document to a guideline,
3) Retire the document.
The EMSWG had previously considered these alternatives and recommended to CIIMS
that the document be retired.
John Tolo asked OC members to participate in a straw poll on which option OC members
preferred. The votes were unanimous for “Retire the document.”
Mr. Black agreed to take the initiative of starting the SAR process to retire MOD-001WECC-RBP-0.
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Attachment B
Crosswalk for Retirement
MOD-001-WECC-CRT-0
Background
In March 2006 prior to the existence of mandatory standards, the Operating Committee (OC) approved
MOD-001-WECC-CRT-0, Reliability Data Exchange to ensure the exchange of data for purposes of
reliability modeling.1
In April 2013, the Critical Infrastructure and Information Management Subcommittee (CIIMS) asked the
Energy Management System Work Group (EMSWG) to review the document and suggest options for
remediation. In June 2013, the CIIMS suggested that retirement of the document would be a viable
alternative. In October 2013, the OC agreed unanimously that the most viable alternative for
remediation was to retire the document. In June 2014, the document changed categorization from a
Regional Business Practice (RBP) to a WECC Regional Criterion (CRT) as a result of WECC Board of
Director action that eliminated the RBP category.
The following is a snapshot of the “requirements” within the CRT and where they are currently
addressed outside of the CRT, rendering those portions of the CRT redundant. As such, it is
recommended that the WSC forward the document to the Board with a request for retirement under
Step 13, of the WECC Reliability Standards Procedures, approved by the Federal Energy Regulatory
Commission on December 23, 2014.
MOD-001 Requirement
Addressed Elsewhere
Upon request, Adjacent Entities shall provide to requesting
Adjacent Entities Network Model Data for Advanced Applications.
Attachment 1-TOP-005-0
This data must include, at a minimum, the network model data
for voltage levels 100 kV and above for their entire system. In
addition, this data must be provided for additional voltage levels
if it affects the stability analysis of the Adjacent Entity’s system.
For adjacent entities
Although its “Version Zero” format identifies it as a “standard” the document has never been a standard as
defined by NERC.
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R1.1. All equipment modeling parameters used by the WECC
power flow program.
Real-time Tools Guideline,
Section I, sub-section B, bullet ii
R1.2. The network connectivity depicted on substation and
system overview one-lines from the SCADA/EMS systems.
This Requirement will be
covered in NERC TOP-003-2
(TOP) once that standard
becomes effective. The WECC
Requirement is more detailed
than the higher level mandate
of the TOP.2
R1.3. Network model information is to be exchanged using the
EPRI CIM/XML
model definition language at the discretion
of the requesting Entity if technically feasible.
Real-time Tools Guideline,
Section I, sub-section B, bullet ii
R1.4. The following information types:
N/A
R1.4.1.All breaker and transfer switch connectivity.
Attachment 1-TOP-005-0
R1.4.1.Transformer connectivity, including number of taps, high
and low
side tap ranges and individual per-unit impedance
arranged as a “PI” model.
Attachment 1-TOP-005-0
R1.4.1Shunt Device connectivity and model data.
Attachment 1-TOP-005-0
R1.4.1Line connectivity and model data.
Attachment 1-TOP-005-0
R1.4.1Series Capacitor connectivity and model data.
Attachment 1-TOP-005-0
R1.4.1Series Reactor connectivity and model data.
Attachment 1-TOP-005-0
R1.4.1 DC Line, phase shifting transformer configuration and
Footnote 1. January 1, 2015.
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April 16, 2013, TOP-003-2 Remanded to NERC - Disposition Pending, RM13-14-000, submitted to FERC for
approval. November 14, 214, NERC approved Revisions approved by NERC on November 14, 2014. November
21, 2013, Remanded November 21 2013. Abeyance until January 2015, Deferred by FERC.
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model data. 1. Analog measurement location.
R1.4.1Generator connectivity and model data.
Attachment 1-TOP-005-0
R1.4.1Load connectivity.
Attachment 1-TOP-005-0
R1.4.1Load profile, if available.
Attachment 1-TOP-005-0
Reliability Coordinator
Upon request, the Reliability Coordinator shall provide to its
Internal Entities and to adjacent, External Entities the Network
Model Information for Advanced Applications. The Reliability
Coordinator shall, at a minimum, provide the Network Model
Information as listed above in R1.1 to R1.4 for voltage levels 230
kV and above for their entire modeled system, including the areas
external to their Reliability Coordinator area.
The WSM is updated every
four-to-six weeks, is exported,
and is made available on
WECCRC.org in various
formats. The RC also shares
Operational Planning Analysis
models and study results in
WECCRC.org daily.
Adjacent Entities shall make available to requesting Adjacent
Entities real-time Advanced Application Data. Entities shall, at a
minimum, make available data for voltage levels 100 kV and
above for their entire system. In addition, this data must be
provided for additional voltage levels if it affects the stability
analysis of the Adjacent Entity’s System
R3.1
The communication protocol used shall be ICCP.
R3.2 The communication network used shall be the WECC
Operational Network (WON).
WON Guidelines
WON Guidelines
R3.3 The provided dynamic data must be updated at least every WON Guidelines
30 seconds. This means that the maximum latency between the
field device and the data presented by the ICCP node is 30
seconds.
R3.4 The Data Retrieval Rate shall be no more frequent than
every 30 seconds, unless otherwise agreed upon. In other words,
the requesting Entity may only scan once every 30 seconds unless
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the providing Entity agrees to allow more frequent scans.
R3.5 The data provider must include data quality along with the WON Guidelines
data. This data
quality shall follow the ICCP Data Quality
Standards as described in the
IEC ICCP User’s Guide (870-6505).
R3.6 Composite breaker positions to indicate the status of
equipment, such as transmission line, transformer, and generator
connectivity, may be supplied at the discretion of the sender.
Not needed, handled in the
ICCP protocol.
R3.7 The data receiver is responsible for any necessary data
conversion, such as sign or bit convention.
Not needed, handled in the
ICCP protocol.
R3.8 The data provider must provide the data in engineering
units and must indicate the units of the measurement so that the
receiver can convert it into the desired units.
No longer needed to be
referenced
R3.9 The following data items, if available from the EMS/SCADA
system, must be provided, whether telemetered or manually
updated:
Not needed, handled in the
ICCP protocol.
TRANSMISSION DATA
R3.9.1 The status or composite status of all switches,
disconnects, and breakers. 1. MW, MVar, voltage and ampere
values.
Attachment 1-TOP-005-0
R3.9.2 MW and MVA dynamic limits.
Attachment 1-TOP-005-0
R3.9.3 Transformer tap position.
Attachment 1-TOP-005-0
R3.9.4 Phase Shifter tap position and phase angle setting.
Attachment 1-TOP-005-0
R3.9.5 Status of automatic voltage control facilities such as static
var compensators and synchronous condensers.
Attachment 1-TOP-005-0
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R3.9.6 Phasor measurements.
Attachment 1-TOP-005-0
R3.9.7 Series Capacitor/Reactor and Shunt Device status and/or
compensation levels.
Attachment 1-TOP-005-0
GENERATOR DATA
R3.9.8 Generator step-up high side net output, per unit or total,
MW and MVar.
Attachment 1-TOP-005-0
Upon request, Reliability Coordinators shall make available to
their Internal Entities and to adjacent External Entities real-time
Advanced Application Data. The Reliability Coordinator shall, at a
minimum, make available the types of data listed above in R3.9
for voltage levels 230 KV and above for their entire modeled
system, including the areas external to their Reliability
Coordinator area. This data must also conform to the
requirements in R3.1 to R3.8.
Attachment 1-TOP-005-0
The transmission outage data to be exchanged among Entities
provides information for outage, load flow and contingency
studies. The data is to be exchanged according to the “WECC
Procedure for Coordination of Scheduled Outages and
Notification of Forced Outages”.
Contained in - WECC Procedure
for Coordination of Scheduled
Outages and Notification of
Forced Outages
Modifications to the network model, SCADA/EMS database or
network topology impacting data provided under this standard,
must be posted on the Grid Alert system.
Not addressed, felt it was not
needed to be included in a
standard
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This standard does not preclude a WECC Entity from providing
and obtaining the data necessary for reliability analysis tools, in
other formats, from other WECC Entities, by mutual consent.
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