Download Stakeholder Comment and Rationale Form AESO AUTHORITATIVE DOCUMENT PROCESS Stakeholder Consultation Draft

Stakeholder Comment and Replies Matrix
AESO AUTHORITATIVE DOCUMENT PROCESS
Proposed New, Amended and Removal of Alberta Reliability Standards Definitions (“Reliability Standards Definitions Update”)
Date of Request for Comment [yyyy/mm/dd]:
Period of Consultation [yyyy/mm/dd]:
Definitions – New
Existing
2013-05-16
2013-04-30
through 2013-05-16
Proposed
Rationale
“agent” includes:
(i) a representative of a pool
participant duly appointed
and authorized by the pool
participant under section
201.2 of the ISO rules,
Appointment of Agent to act
on behalf of and bind the
pool participant with
regard to transactions and
other activities on the
Energy Trading System and
the Automated Dispatch
and Messaging System; or
(ii) a representative of a
This defined term is used in BAL002-AB-1 and BAL-STD-002-AB-0.
Stakeholder Comments and/or
Alternate Proposal
AESO Reply
No definition currently exists in
the reliability standards other
than through a reference to the
ISO rules definitions.
agent
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 1 of 48
market participant or a
pool participant, as the
case may be, duly
appointed and authorized to
act on behalf of and bind
that person with regard to
other ISO activities,
procedures and
requirements,
which such appointment is made
under and in accordance with the
applicable ISO rules,
authorizations and procedures.
ancillary services
area control error (ACE)
“ancillary services” as defined
in the Act means those services
required to ensure that the
interconnected electric system
is operated in a manner that
provides a satisfactory level of
service with acceptable levels of
voltage and frequency.
This defined term is used in the
measures in BAL-002-AB-1 and
BAL-STD-002-AB-0.
“area control error” means the
instantaneous difference
between actual interchange and
scheduled interchange, taking
into account the effects of
frequency bias, time error and
unilateral inadvertent
This defined term is used in the
following reliability standards: BAL001-AB-0a; BAL-002-AB-1; BAL003-AB-0a; BAL-004-WECC-AB-1;
EOP-002-AB-2; INT-003-AB-2; INT009-AB-1; and TOP-005-AB1-1.
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 2 of 48
bid
Commission
contingency reserve
interchange if automatic
correction is part of the
automatic generation control of
the interconnected electric
system, and a correction for
metering error.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
“bid” means, in respect of a pool
asset in a settlement interval, a
pool participant submission to
purchase:
(i) electric energy and includes
all of the operating blocks
the pool participant uses
for that submission; or
(ii) operating reserves from
applicable Alberta markets.
This defined term is used in TOP005-AB1-1.
“Commission” as defined in the
Act means the Alberta Utilities
Commission established by the
Alberta Utilities Commission Act.
This defined term is used in
reliability standard FAC-001-AB-0.
“contingency reserve” means
This defined term is used in BAL-
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 3 of 48
day
the operating reserve used to
recover the area control error
according to WECC criteria.
002-AB-1 and BAL-STD-002-AB-0.
“day” means the twenty-four (24)
hour period in Alberta beginning
at 00:00:00 and ending and
23:59:59 but which:
(i) in the case of the day on
which daylight savings
begins, is twenty-three (23)
hours; or
(ii) in the case of the day on
which daylight savings ends,
is twenty-five (25) hours.
This defined term is used in the
following reliability standards: BAL002-AB-1; BAL-004-WECC-AB-1;
BAL-006-AB-1; COM-001-AB-1.1;
COM-002-AB-2a; EOP-002-AB-2;
FAC-002-AB-0; FAC-003-AB1-1;
FAC-010-AB-2.1; MOD-010&012AB-0; MOD-016-AB-1.1; MOD-018AB-0; PRC-001-AB1-1; PRC-004WECC-AB1-1; PRC-018-AB-1;
PRC-021-AB1-1; PRC-022-AB-1;
TOP-005-AB1-1; VAR-002-AB-1.1b;
VAR-002-WECC-AB-1; and VAR501-WECC-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 4 of 48
directive
"directive" means a direction the
ISO gives to a market
participant instructing the
market participant to take any
action the ISO deems necessary
to maintain the reliability of the
interconnected electric
system.
This defined term is used in the
following reliability standards: BAL002-AB-1; BAL-STD-002-AB-0;
COM-002-AB-2a; EOP-002-AB-2;
and EOP-003-AB1-1; PRC-001AB1-1; PRC-004-WECC-AB1-1;
VAR-001-AB-1a; VAR-002-AB-1.1b;
VAR-002-WECC-AB-1; and VAR501-WECC-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
dispatch
disturbance
“dispatch” has the same
meaning as that provided in the
Act, which means a direction
from the ISO to a pool
participant to cause, permit or
alter the exchange of electric
energy or ancillary services.
This defined term is used in BALSTD-002-AB-0 and FAC-010-AB2.1.
“disturbance” means an
This defined term is used in the
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 5 of 48
unplanned event which produces
an abnormal system condition or
the effects experienced by a
power system following a
contingency, such as high or
low frequency, abnormal voltage
or oscillations in the system.
following reliability standards: BAL002-AB-1; BAL-STD-002-AB-0;
BAL-003-AB-0a; EOP-002-AB-2;
EOP-004-AB1-1; PRC-009-AB-0;
PRC-018-AB-1; TPL-001-AB-0;
TPL-002-AB-0; TPL-003-AB-0; and
TPL-004-AB-0.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
disturbance control standard
electric distribution system
“disturbance control standard”
means a performance measure
applied to a balancing authority
or reserve sharing group for
recovering from a disturbance
within fifteen (15) minutes by
restoring area control error to
zero (0) or to its pre-disturbance
level.
This defined term is used in
reliability standard EOP-002-AB-2.
“electric distribution system”
as defined in the Act means the
plant, works, equipment, systems
and services necessary to
distribute electricity in a service
This defined term is used in the
following reliability standards: CIP001-AB1-1; EOP-003-AB1-1 and
EOP-004-AB1-1.
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 6 of 48
emergency assistance
area, but does not include a
generating unit or a
transmission facility.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
“emergency assistance” means
energy provided to a person
experiencing a system
emergency.
This defined term is used in
reliability standard EOP-001-AB-2b
and EOP-002-AB-2.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
e-tag
“e-tag” means an electronic
identifier which contains specific
transactional information,
necessary for scheduling an
interchange transaction.
AESO Replies to Stakeholder Comments: 2013-08-15
ATCO Electric
1. ATCO Electric requests the
AESO to consider revising
the proposed definition to
read as follows:
“Emergency assistance”
means energy provided
during a system emergency.
1. Substantive changes to
definitions are out of the
scope of this particular set
of proposed changes.
The AESO is simply
proposing to reflect the
meaning in the current
reliability standards and
add to the reliability
standards glossary the
definitions which are
incorporated by reference
from the ISO rules. The
AESO has taken note of
ATCO`s suggested
change and will consider it
for a future consultation.
This defined term is used in the
following reliability standards: COM001-AB-1.1; INT-001-AB-3; INT003-AB-2; INT-006-AB-2; IRO-001AB-1.1 and IRO-006-WECC-AB-1.
Page 7 of 48
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
firm load
“firm load” means the load that
the ISO and system members will
use reasonable best efforts to
supply without interruption.
This defined term is used in the
following reliability standards: COM002-AB-2a; EOP-001-AB-2b; EOP002-AB-2; and EOP-004-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
“forced outage”
“forced outage” means the
unavailability of a facility which is
not anticipated as part of a legal
owner’s regular maintenance
and occurs as a result of an
automatic or accidental action.
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in
reliability standard FAC-003-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
ATCO Electric
2. ATCO Electric requests that
the AESO provide the
definition of “facility” as
related to ARS. NERC
defines “Facility” as “[a] set of
electrical equipment that
operates as a single Bulk
Electric System Element
2. The AESO does not agree
with ATCO Electric that it
is necessary to define
“facility”, particularly as
the term may have a
broader meaning in other
authoritative documents.
Page 8 of 48
for use in the reliability standards.
(e.g., a line, a generator, a
shunt compensator,
transformer, etc.)”.
Amended as: “Forced
outage” should be read as
“the unavailability of a facility
which is not anticipated as
part of a legal owner’s
regular maintenance and
occurs as a result of an
automatic or accidental
action.”
In addition, the AESO
acknowledges that there
is an outstanding
consultation on proposed
updates to the outages
definitions for the ISO
rules. In keeping with the
scope set out in AESO
Reply 1 above, the
proposed outage
definitions were consistent
with the definitions
proposed for the ISO
rules. The AESO will take
ATCO’s comments into
consideration when
finalizing the outage
definitions for the ISO
rules and proposes to
make the revised version
of the outage definitions
for the reliability standards
the same as the versions
for the ISO rules.
EPCOR Distribution &
Transmission Inc.
3. EDTI recommends that the
definition of forced outage
be modified to: “means the
unavailability of a facility
which is not anticipated and
occurs as a result of an
AESO Replies to Stakeholder Comments: 2013-08-15
3. Please see AESO Reply 2
above.
Page 9 of 48
automatic or accidental
action.”
In this recommendation EDTI
has removed the reference to
the legal owner because the
owner of the facility is
generally not the party that
forces an outage to a facility.
EDTI also recommends the
removal of “regular
maintenance” from the
definition due to the fact that
other types of work would
require planned outages to
facilities other than regular
maintenance, such as testing,
construction, or
commissioning activities.
Governor or governor system
Hour ending (HE)
“governor” means automatic
control equipment with speed
droop characteristics to control
generating unit speed and/or
electricity output.
This defined term is used in
reliability standard BAL-002-AB-1
and BAL-003-AB-0a.
“hour ending or HE” means the
This defined term is used in
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 10 of 48
inadvertent interchange
interchange schedule
sixty (60) minute period ending
that hour. For example, HE 24
includes the time between 23:00
and 24:00. For pool price and
dispatch purposes, the hour
starts at hh:00:00 and ends
hh:59:59 for hh+1.
reliability standard BAL-001-AB-0a.
“inadvertent interchange”
means the difference between
the net actual interchange of
the balancing authority and the
net interchange schedule of the
balancing authority.
This defined term is used in the
following reliability standards: BAL
004-WECC-AB-1; BAL-006-AB-1;
and INT-001-AB-3.
“interchange schedule” means,
for a given settlement interval,
the planned interchange of
energy between the ISO and an
adjacent balancing authority
which results from the validation
and scheduling of interchange
transactions.
This defined term is used in the
following reliability standards: BAL002-AB-1; BAL-004-WECC-AB-1;
EOP-002-AB-2; INT-003-AB-2; INT006-AB-2; INT-009-AB-1; INT-010AB-1; MOD-010&012-AB-0; TOP005-AB1-1; and TOP-007-WECCAB-1.
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 11 of 48
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
interchange transaction
“interchange transaction”
means an energy or ancillary
services transaction that crosses
one or more balancing authority
area boundaries.
This defined term is used in the
following reliability standards: BALSTD-002-AB-0; INT-001-AB-3; and
TOP-005-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
intertie
“intertie” as defined in the
Transmission Regulation means
a transmission facility,
including its associated
components, that links one or
more electric systems outside
Alberta to one or more points on
the interconnected electric
system.
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
following reliability standards: BAL001-AB-0a; BAL-003-AB-0a; BAL004-WECC-AB-1; BAL-006-AB-1;
INT-003-AB-2; and INT-009-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
Page 12 of 48
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ISO rules
“ISO rules” as defined in the Act
means the rules made by the
Independent System Operator
under section 19 and 20 of the
Act.
This defined term is used in the
following reliability standards: EOP002-AB-2; EOP-003-AB1-1; EOP004-AB1-1; PRC-021-AB1-1; PRC022-AB-1; TOP-005-AB1-1; TPL001-AB-0; TPL-002-AB-0; TPL-003AB-0; TPL-004-AB-0; VAR-001-AB1a; and VAR-002-AB-1.1b.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ISO tariff
“ISO tariff” as defined in the Act
means the tariff prepared by the
ISO under section 30 of the Act
that has been approved by the
Commission.
This defined term is used in the
following reliability standards: EOP003-AB1-1; EOP-004-AB1-1; FAC010-AB-2.1; and PRC-021-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
AESO Replies to Stakeholder Comments: 2013-08-15
Page 13 of 48
for use in the reliability standards.
meter
month
“meter” means the apparatus
which measures active energy,
reactive power or both, including
any internal recorder, or clock,
which is normally tested as part
of the apparatus.
“month” means a calendar
month.
This defined term is used in the
following reliability standards: BAL001-AB-0a; BAL-004-WECC-AB-1;
BAL-006-AB-1 and FAC-003-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ENMAX Corporation
4. ENMAX recommends that the
AESO use the term “metre”
when referring to
measurement to avoid
confusion.
For example, FAC-003-AB1-1
uses the word “meters”,
however, in that standard, the
term “meters” refers to the
height of vegetation growth,
not the definition listed here.
4. The AESO agrees with
ENMAX, and accordingly,
will make the suggested
change to the final
proposed Reliability
Standards Definitions
Update.
This defined term is used in the
following reliability standards: BAL001-AB-0a; BAL-004-WECC-AB-1;
BAL-006-AB-1; CIP-001-AB1-1;
FAC-001-AB-0; PRC-021-AB1-1;
VAR-002-WECC-AB-1; and VAR501-WECC-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
NERC
“NERC” means the North
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
Page 14 of 48
American Electric Reliability
Corporation.
following reliability standards: BAL001-AB-0a; BAL-002-AB-1; BAL003-AB-0a; EOP-001-AB-2b; and
EOP-004-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
needs identification document
“needs identification
document” means the document
referred to in section (34)(1) of
the Act.
This defined term is used in the
following reliability standards: TPL001-AB-0; TPL-002-AB-0; TPL-003AB-0; and TPL-004-AB-0.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
off peak
“off peak” means those periods
of time which are not on peak.
This defined term is used in
reliability standard BAL-004-WECCAB-1 and BAL-006-AB-1.
Because the AESO is proposing to
eventually delete the language in
AESO Replies to Stakeholder Comments: 2013-08-15
Page 15 of 48
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
offer
on peak
“offer” means, in respect of a
pool asset in a settlement
interval, a pool participant
submission to sell:
(i) electric energy or dispatch
down service and includes
all of the operating blocks
the pool participant uses
for that submission; or
(ii) operating reserves to
applicable Alberta markets.
This defined term is used in TOP005-AB1-1.
“on peak” means the time:
(i) from 07:00 to 23:00
inclusive, Mountain Time in
Alberta; or
(ii) when dealing with
inadvertent interchange,
that NERC defines with
Saskatchewan being
treated the same as the
western interconnection.
This defined term is used in
reliability standard BAL-004-WECCAB-1 and BAL-006-AB-1.
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 16 of 48
operating reserves
person
“operating reserves” means the
capability above system demand
required to provide for
regulation, load forecasting
errors, equipment forced
outages and scheduled outages
and local area protection. It
consists of spinning reserve
and non-spinning reserve.
“person” as defined in the Act
includes an individual,
unincorporated entity,
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
following reliability standards: EOP002-AB-2; and TOP-005-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ATCO Electric
5. To be consistent with the
NERC definition, ATCO
Electric requests the AESO to
consider revising the
proposed definition of
“operating reserves” by
adding the word “firm”:
“operating reserves” means
the capability above [firm]
system demand required to
provide for regulation, load
forecasting errors, equipment
forced outages and
scheduled outages and local
area protection. It consists of
spinning reserve and nonspinning reserve.
5. Subsequent to this
consultation, the AESO
issued a consultation
respecting new operating
reserve sections of the
ISO rules. As part of that
consultation, the AESO
proposed updates to the
definition of “operating
reserve”, including issuing
a duplicate consultation
for the proposed updates
to the definition in the
reliability standards.
The AESO will take
ATCO’s comments into
consideration when
finalizing the definitions in
those subsequent
consultations, and
proposes to make the
revised version of the
definition of “operating
reserve” for the reliability
standards the same as
the version for the ISO
rules.
This defined term is used in
reliability standard EOP-002-AB-2;
EOP-004-AB1-1; FAC-001-AB-0;
Page 17 of 48
“planned outage”
partnership, association,
corporation, trustee, executor,
administrator or legal
representative.
and IRO-001-AB-1.1.
“planned outage” means the
unavailability of a facility which is
anticipated as part of a legal
owner`s regular maintenance
and occurs as a result of a
deliberate, manual action.
This defined term is used in TPL002-AB-0; TPL-003-AB-0; TPL-004AB-0; VAR-002-WEEC-AB-1; and
VAR-501-WECC-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ATCO Electric
6. ATCO Electric suggests that
the definition of planned
outages also include outages
for conditions found during
normal testing or inspections,
and which can be left in
service for more than 24
hours. ATCO Electric also
requests that the AESO
provide the definition of
“facility” as related to ARS.
6. Please see AESO Reply 2
above.
NERC defines “Facility” as
“[a] set of electrical
equipment that operates as a
single Bulk Electric System
Element (e.g., a line, a
generator, a shunt
compensator, transformer,
etc.)”.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 18 of 48
Amended as: “Forced
outage” reads as; “the
unavailability of a facility
which is anticipated as part of
a legal owner’s regular
maintenance and occurs as a
result of deliberate, manual
action.”
EPCOR Distribution &
Transmission Inc.
7. EDTI notes that not all
planned outages are required
for maintenance purposes,
and recommends that this
definition include outages
required for construction,
testing, and commissioning
activities as well.
7. Please see AESO Reply 2
above.
EDTI also recommends that
the reference to a “legal
owner” be either removed or
modified to “legal operator”.
The operator is the party that
would plan and conduct the
outage.
point of connection
“point of connection” means a
point at which electric energy is
transferred between a
transmission facility that is not
an industrial system, and:
(i) the high voltage side of any
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in
reliability standard FAC-001-AB-0
and VAR-001-AB-1a.
Because the AESO is proposing to
eventually delete the language in
Page 19 of 48
aggregated generating
facilities or generating
unit;
(ii) an electric distribution
system;
(iii) an industrial system that has
been designated as such by
the Commission; or
(iv) a load facility with system
access service under
subsection 101(2) of the
Act.
point of interconnection
pool participant
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
“point of interconnection”
means the point at which
electricity is transferred between
the interconnected electric
system and a neighbouring
jurisdiction and where the
electricity so transferred is
measured.
This defined term is used in BAL006-AB-1.
“pool participant” means a
market participant who is
registered to transact, listed in
the pool participant list.
This defined term is used in the
following reliability standards: INT001-AB-3; and TOP-005-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
AESO Replies to Stakeholder Comments: 2013-08-15
Page 20 of 48
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ramping
reliability
“ramping” means the state of
operation for a pool asset that
begins at the specified effective
time indicated on the most
current energy market dispatch
and continues until the point in
time the pool asset has reached
the quantity, in MW, specified in
the energy market dispatch,
plus or minus the allowable
dispatch variance for that pool
asset.
This defined term is used in
reliability standard INT-006-AB-2.
“reliability” means the
combination of adequacy and
system security.
This defined term is used in the
following reliability standards: BAL003-AB-0a; BAL-004-AB-1; BAL004-WECC-AB-1; BAL-006-AB-1;
COM-001-AB-1.1; EOP-002-AB-2;
FAC-002-AB-0; FAC-003-AB1-1;
FAC-010-AB-2.1; FAC-014-AB-2;
INT-006-AB-2; INT-010-AB-1; MOD016-AB-1.1; MOD-017-AB-0.1;
MOD-018-AB-0; MOD-019-AB-0;
PRC-001-AB1-1; PRC-004-AB1-1;
PRC-004-WECC-AB1-1; TOP-005AB1-1; TPL-001-AB-0; TPL-002-AB0; TPL-003-AB-0; TPL-004-AB-0;
and VAR-501-WECC-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
AESO Replies to Stakeholder Comments: 2013-08-15
EPCOR Distribution &
Transmission Inc.
8. EDTI notes that this definition
of reliability is not sufficiently
complete for all standards
that contain the term. For
example, PRC-001 refers to a
reduction of transmission
system reliability. It is
unclear to EDTI what this
means in the context of the
proposed definition.
8. Please see AESO Reply 1
above.
In the context of PRC-001,
EDTI believes that reliability
refers to the “coordination of
Page 21 of 48
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
reliability standard
remedial action scheme (RAS)
protective devices”. EDTI
suggests that this definition of
reliability also be included in
the Consolidated
Authoritative Document
Glossary pertaining to
standard PRC-001, or that a
new version of PRC-001 is
drafted to replace the word
reliability with “the
coordination of protective
devices”.
“reliability standards” as
defined in the Transmission
Regulation means the reliability
standards under section 19.
This defined term is used in every
reliability standard.
“remedial action scheme”
means protection schemes
designed to perform pre-planned
corrective measures following a
disturbance to provide for
acceptable interconnected
electric system performance or
equipment protection.
ATCO Electric
This defined term is used in the
following reliability standards: EOP004-AB1-1; FAC-010-AB-2.1; PRC9. ATCO Electric would be fine
001-AB1-1; PRC-004-WECC-AB1-1;
with the NERC definition of
PRC-021-AB1-1; TOP-005-AB1-1;
RAS. We find the AESO
TPL-001-AB-0; TPL-002-AB-0; TPLdefinition unclear in regards
003-AB-0; and TPL-004-AB-0.
to the delineation between
normal automatic fault
Because the AESO is proposing to
clearing protection schemes
eventually delete the language in
versus RAS. We also wish to
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
9. Subsequent to this
consultation, the AESO
issued a consultation
respecting a new
definition for “remedial
action scheme” which
more closely mimics the
current NERC version.
Page 22 of 48
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ensure that apparatus
overvoltage protection such
as our 240 kV overvoltage
Direct Transfer Tripping
(DTT) are excluded from
consideration as RAS by
proper definition as well as
ensure we are not required to
document for ARS other
schemes such as those
developed for Distributed
Generation (DG) connections
when they do not impact the
transmission network.
Hence, ATCO Electric
requests the AESO to
consider the revised
proposed definition of
“remedial action scheme”:
Accordingly, the AESO
proposes to remove
“remedial action scheme”
from this older
consultation.
“remedial action scheme”
means protection schemes
(excluding those defined
within ISO Rule 502.3)
designed to perform preplanned prescribed corrective
measures following an AIES
network disturbance to
provide for acceptable
interconnected electric
system performance that
may include transmission
thermal mitigation schemes
and anti-islanding schemes.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 23 of 48
or equipment protection. A
“remedial action scheme”
covered by this definition will
not include distribution
generator anti-islanding
schemes where no STS
contract exists,
underfrequency load shed
schemes (UFLS), or
apparatus overvoltages
protection schemes applied
selectively by a “legal
owner” of a “transmission
facility”.
ATCO Power
10. ATCO Power notes that
NERC’s definition of “Special
Protection System” (NERC’s
terminology for remedial
action scheme), includes a
number of exclusions,
whereas the proposed AESO
definition is more general in
nature. This generality
makes the AESO definition
more comprehensive than the
NERC definition. This goes
against of the AESO’s
Guiding Principles for drafting
ARS: “ARS will be consistent
where possible with NERC
and WECC standards…” and
AESO Replies to Stakeholder Comments: 2013-08-15
10. Please see AESO Reply 9
above.
Page 24 of 48
“ARS will be no more
stringent than NERC and
WECC standards…”
ATCO’s suggestion is that for
the purposes of ARS the
AESO adopt the NERC
definition for special
protection system as, in our
view, ISO rules capture the
aspects of protection systems
(such as UVLS) that would no
longer be captured in the
ARS definition. Therefore,
there would be no risk of a
reliability gap if the NERC
definition is adopted.
EPCOR Distribution &
Transmission Inc.
11. EDTI recommends that the
definition of RAS be modified
to exclude underfrequency
and undervoltage load
shedding. This would better
align the definition used in
Alberta Reliability Standards
with those used in North
American Electric Reliability
Corporation (NERC)
Reliability Standards.
11. Please see AESO Reply 9
above.
Also, rules and requirements
pertaining to UFLS and UVLS
AESO Replies to Stakeholder Comments: 2013-08-15
Page 25 of 48
programs currently exist
(OPP 804, EOP-003-AB1-1,
PRC-009-AB-0, EOP-004AB1-1, PRC-010-AB-0, PRC021-AB1-1, and PRC-022AB-1) that are separate from
Alberta Reliability Standards
that pertain to Remedial
Action Schemes. Including
UFLS and UVLS in the
definitions of RAS is unduly
unnecessary and poses the
potential risk of double
jeopardy.
spinning reserve
total transfer capability (TTC)
“spinning reserve” means the
amount of unloaded generation
that is synchronized to the
interconnected electric system
and ready to serve additional
demand.
This defined term is used in BALSTD-002-AB-0 and EOP-002-AB-2.
“total transfer capability”
means the amount of real power
the ISO determines can be
reliably transferred over the
interconnected transmission
network under specified system
conditions.
This defined term is used in
reliability standard EOP-002-AB-2.
AESO Replies to Stakeholder Comments: 2013-08-15
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
Page 26 of 48
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
transmission facility
“transmission facility” as
defined in the Act means an
arrangement of conductors and
transformation equipment that
transmits electricity from the high
voltage terminal of the generation
transformer to the low voltage
terminal of the step down
transformer operating phase to
phase at a nominal high voltage
level of more than 25 000 volts to
a nominal low voltage level of
25000 volts or less, and includes:
(i) transmission lines
energized in excess of
25000 volts,
(ii) insulating and supporting
structures,
(iii) substations, transformers
and switchgear,
(iv) operational,
telecommunication and
control devices,
(v) all property of any kind
used for the purpose of, or
in connection with, the
operation of the
transmission facility,
including all equipment in a
substation used to transmit
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
following reliability standards: CIP001-AB1-1; COM-001-AB-1.1;
COM-002-AB-2; EOP-001-AB-2b;
EOP-003-AB1-1; EOP-004-AB1-1;
FAC-001-AB-0; FAC-002-AB-0;
FAC-003-AB1-1; FAC-501-WECCAB1-1; MOD-010&012-AB-0; PRC001-AB1-1; PRC-004-AB1-1; PRC004-WECC-AB1-1; PRC-018-AB-1;
PRC-021-AB1-1; TOP-005-AB1-1;
TPL-001-AB-0; TPL-002-AB-0; TPL003-AB-0; TPL-004-AB-0; VAR-001AB-1a; VAR-002-AB-1.1b; VAR002-WECC-AB-1; .
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Page 27 of 48
electric energy from (A) the
low voltage terminal, to (B)
electric distribution
system lines that exit the
substation and are
energized at 25 000 volts
or less, and
(vi) connections with electric
systems in jurisdictions
bordering Alberta,
but does not include a
generating unit or an electric
distribution system.
underfrequency load shedding
(UFLS)
“underfrequency load
shedding” means the automatic
or manual actions required to
shed system load when the
system frequency falls below the
normal system operating
frequency of sixty (60) Hz in
order to allow for the return to a
secure state.
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
following reliability standards: EOP003-AB1-1; PRC-009-AB-0 and
PRC-021-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ATCO Electric
12. ATCO Electric requests the
AESO to consider replacing
the term “to allow for the
return to a secure state” with
“to arrest a frequency
decline” as referred by
Electric Power Research
Institute (EPRI).
12. Please see AESO Reply 1
above.
Proposed: “underfrequency
load shedding” means the
automatic or manual actions
required to shed system load
when the system frequency
falls below the normal system
operating frequency of sixty
(60) Hz in order to arrest a
frequency decline and return
Page 28 of 48
to schedule.
under voltage load shed (UVLS)
“under voltage load shed”
means a protection scheme that
enables pre-configured devices
to automatically shed load to
stabilize voltage when voltage
falls below predetermined limits.
This defined term is used in the
following reliability standards: EOP003-AB1-1; EOP-004-AB1-1; PRC010-AB-0; PRC-021-AB1-1; and
PRC-022-AB-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
“unplanned outage”
“unplanned outage” means the
unavailability of a facility which is
not anticipated as part of a legal
owner`s regular maintenance
and occurs as a result of a
deliberate, manual action.
AESO Replies to Stakeholder Comments: 2013-08-15
The defined term is used in FAC003-AB1-1.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
ATCO Electric
13. ATCO Electric requests that
the AESO provide the
definition of “facility” as
related to ARS. NERC
defines “Facility” as “[a] set of
electrical equipment that
operates as a single Bulk
Electric System Element
(e.g., a line, a generator, a
shunt compensator,
transformer, etc.)”.
13. Please see AESO Reply 2
above.
Page 29 of 48
EPCOR Distribution &
Transmission Inc.
14. EDTI recommends that this
definition is modified to the
following:
“unplanned outage” means
the unavailability of a facility
which is not anticipated and
occurs as a result of a
deliberate, manual action.
14. Please see AESO Reply 2
above.
In this recommendation EDTI
has removed the reference to
the legal owner because the
owner of the facility is
generally not the party that
conducts regular
maintenance and schedules
planned outage to a facility.
EDTI also recommends the
removal of “regular
maintenance” from the
definition due to the fact that
other types of work would
require planned outages to
facilities other than regular
maintenance, such as testing,
construction, or
commissioning activities.
WECC
“WECC” means the Western
Electricity Coordinating Council.
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
following reliability standards: BAL001-AB-0a; BAL-004-AB-1; BALPage 30 of 48
004-WECC-AB-1; BAL-006-AB-1;
COM-001-AB-1.1; COM-002-AB-2a;
EOP-001-AB-2b; EOP-002-AB-2;
EOP-003-AB1-1; EOP-004-AB1-1;
FAC-002-AB-0; FAC-003-AB1-1;
FAC-010-AB-2.1; FAC-014-AB-2;
FAC-501-WECC-AB1-1; IRO-001AB-1.1; IRO-006-WECC-AB-1;
MOD-010&012-AB-0; MOD-017-AB0.1; MOD-018-AB-0; MOD-019-AB0; PRC-001-AB1-1; PRC-004-AB11; PRC-004-WECC-AB1-1; PRC009-AB-0; PRC-010-AB-0; PRC018-AB-1; PRC-021-AB1-1; PRC022-AB-1; TOP-005-AB1-1; TPL001-AB-0; TPL-002-AB-0; TPL-003AB-0; and TPL-004-AB-0.
Because the AESO is proposing to
eventually delete the language in
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
western interconnection
“western interconnection”
means the area comprised of
those portions of western
Canada, northern Mexico and the
western United States in which
members of the WECC operate
synchronously connected
AESO Replies to Stakeholder Comments: 2013-08-15
This defined term is used in the
following reliability standards:
BAL-STD-002-AB-0; BAL-004-AB-1;
BAL-004-WECC-AB-1.
Because the AESO is proposing to
eventually delete the language in
Page 31 of 48
transmission systems.
the current reliability standards
which incorporates ISO rules
definitions into the reliability
standards, the AESO proposes this
definition be specifically approved
for use in the reliability standards.
Definitions – Amended
Existing
Proposed
Rationale
“automatic generation control
(AGC)” means equipment that
adjusts a balancing authority’s
generation in a balancing
authority’s area from a central
location to maintain the balancing
authority’s frequency or
interchange schedule plus or
minus frequency bias. AGC may
also accommodate automatic
inadvertent payback and time
error correction.
“automatic generation control
(AGC)” means equipment that
adjusts a balancing authority’s
generation in a balancing
authority’s area from a central
location to maintain the
balancing authority’s frequency
or interchange schedule plus or
minus frequency bias; and .
AGC may also accommodate
automatic inadvertent payback
and time error correction.
The AESO proposes to update this
definition to match the version in the
ISO rules and to reflect current
AESO drafting principles.
“balancing authority or BA”
means a responsible entity that
integrates resource plans ahead
of time, maintains loadinterchange generation balance
within a balancing authority
area.
“balancing authority or BA”
means a responsible entity that
integrates resource plans ahead
of time, maintains loadinterchange generation balance
within a balancing authority
area and supports
Interconnection frequency in
real time.
The AESO proposes to update this
definition to match the version in the
ISO rules and to reflect current
AESO drafting principles.
“balancing authority area”
“balancing authority area”
The AESO proposes to update this
AESO Replies to Stakeholder Comments: 2013-08-15
Stakeholder Comments and/or
Alternate Proposal
AESO Reply
Page 32 of 48
means the collection of
generation, transmission and
loads, within the metered
boundaries of the balancing
authority and for which the
balancing authority maintains
load-resource balance.
means the collection of
generation, transmission and
loads, within the metered
boundaries of the balancing
authority and for which the
balancing authority maintains
load-resource balance.
definition to match the version in the
ISO rules and to reflect current
AESO drafting principles.
“bulk electric system or BES”
as defined by the Regional
Reliability Organization, means
the electrical generation
resources, transmission lines,
interconnections, with
neigbouring systems, and
associated equipment, generally
operated at voltages of 100kV or
higher; radial transmission
facilities serving only load with
one transmission source are
generally not included in this
definition.
“bulk electric system or BES”
as defined by the Regional
Reliability Organization, means
the electrical generation
resources, transmission lines,
interconnections, with
neighbouring systems, and
associated equipment, generally
operated at voltages of one
hundred (100) kV or higher;
radial transmission facilities
serving only load with one (1)
transmission source are
generally not included in this
definition.
The AESO proposes to update this
definition to match the version in the
ISO rules and to reflect current
AESO drafting principles.
“cascading” means the
uncontrolled successive loss of
system elements triggered by
an incident at any location;
cascading results in widespread
electric services interruption that
cannot be restrained from
sequentially spreading beyond an
area predetermined by studies.
“cascading” means the
uncontrolled successive loss of
system elements triggered by an
incident at any location, resulting;
cascading results in widespread
electric services interruption that
cannot be restrained from
sequentially spreading beyond an
area predetermined by studies.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 33 of 48
“contingency” means the
unexpected failure or outage of a
system component, such as a
generating unit, transmission
line, circuit breaker, switch or
electrical element.
“contingency” means the
unexpected failure or outage of a
system component, such as a
generating unit, transmission
line, circuit breaker, switch or
electrical element.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“control performance standard
or CPS” means the reliability
standard that sets the limits of a
balancing authority’s ACE over
a specified time period.
“control performance standard”
means the reliability standard
that sets the limits of the area
control error of a balancing
authority’s ACE over a specified
time period.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“dependability-based
misoperation” means the
absence of a protection system
or RAS operation when intended.
Dependability is a component of
reliability and is the measure of
a device’s certainty to operate
when required.
“dependability-based
The AESO proposes to update this
misoperation” means the
definition to reflect current AESO
absence of a protection system drafting principles.
or RAS remedial action scheme
operation when intended.
Dependability is a component of
reliability and is the measure of
a device’s certainty to operate
when required.
“demand” means:
• the rate at which electric energy
is delivered to or by a system or
part of a system, generally
expressed in kilowatts or
megawatts, at a given instant or
averaged over any designated
“demand” means:
(i) • the rate at which electric
energy is delivered to or by
a system or part of a
system, generally expressed
in kilowatts MWmegawatts,
at a given instant or
AESO Replies to Stakeholder Comments: 2013-08-15
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
Page 34 of 48
interval of time; or
• the rate at which electric energy
is being used by the demand
customer.
“disturbance monitoring
equipment” means devices
capable of monitoring and
recording system data pertaining
to a disturbance, including: (i)
sequence of event recorders
which record equipment
response to the disturbance; (ii)
fault recorders, which record
actual waveform data replicating
the system primary voltages and
currents and which may include
protective relays that provide this
functionality; and (iii) dynamic
disturbance recorders which
record incidents that portray
system behaviour during
disturbances, such as lowfrequency (0.1 Hz - 3 Hz)
oscillations, abnormal frequency
or voltage excursions, and which
may include phasor
measurement units.
averaged over any
designated interval of time;
or
(i) •
(ii) the rate at which electric
energy is being used by the
demand customer.
“disturbance monitoring
The AESO proposes to update this
equipment” means devices
definition to reflect current AESO
capable of monitoring and
drafting principles.
recording system data pertaining
to a disturbance, including:
(i) (i) sequence of event
recorders which record
equipment response to the
disturbance;
(ii) (ii) fault recorders, which
record actual waveform
data replicating the system
primary voltages and
currents and which may
include protective relays
that provide this
functionality; and
(i)(iii) (iii) dynamic disturbance
recorders which record
incidents that portray
system behaviour during
disturbances, such as
low-frequency (0.1 Hz - 3
Hz) oscillations, abnormal
frequency or voltage
excursions, and which may
AESO Replies to Stakeholder Comments: 2013-08-15
Page 35 of 48
include phasor
measurement units.
“frequency bias” means a value,
usually expressed in megawatts
per 0.1 Hertz (MW/0.1 Hz),
associated with a balancing
authority area that approximates
the balancing authority area's
response to Interconnection
frequency error.
“frequency bias” means a value,
usually expressed in megawatts
MW per zero point one 0.1 Hertz
Hz (MW/0.1 Hz), associated with
a balancing authority area that
approximates the balancing
authority area's response to the
frequency error of the
Interconnection frequency error.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“frequency bias setting” means
a value, usually expressed in
MW/0.1 Hz, set into a balancing
authority ACE algorithm that
allows the balancing authority to
contribute its frequency response
to the Interconnection.
“frequency bias setting” means
a value, usually expressed in MW
per zero point one Hz (MW/0.1
Hz), set into the area control
error algorithm of a balancing
authority ACE algorithm that
allows the balancing authority
to contribute its frequency
response to the
Interconnection.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“frequency response” means,
for an equipment, the ability of a
system or elements of the system
to react or respond to a change
in system frequency, or for a
system, the sum of the change in
demand, plus the change in
generation, divided by the
change in frequency, expressed
in megawatts per 0.1 Hertz
“frequency response” means:
(i) , for an equipment, the
ability of a system, or
elements of the system, to
react or respond to a
change in system
frequency;, or
(i)(ii) for a system, the sum of
the change in demand,
plus the change in
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 36 of 48
(MW/0.1 Hz).
“functionally equivalent
protection system or FEPS”
means a protection system that
provides performance as follows:
• each protection system can
detect the same faults within the
zone of protection and provide
the clearing times and
coordination needed to comply
with all reliability standards.
• each protection system may
have different components and
operating characteristics.
“functionally equivalent RAS or
FERAS” means a RAS that
provides the same performance
as follows:
• each RAS can detect the same
conditions and provide mitigation
to comply with all reliability
standards.
• each RAS may have different
components and operating
characteristics.
generation, divided by the
change in frequency,
expressed in megawatts
MW per zero point one
Hz0.1 Hertz (MW/0.1 Hz).
“functionally equivalent
protection system or FEPS”
means a protection system that
provides performance as follows:
(i) • each protection system
can detect the same faults
within the zone of
protection and provide the
clearing times and
coordination needed to
comply with all reliability
standards; and.
(i)
(ii) • each protection system
may have different
components and operating
characteristics.
“functionally equivalent RAS or
FERAS” means a remedial
action schemeRAS that
provides the same performance
as follows:
(i) • each RAS remedial
action scheme can detect
the same conditions and
provide mitigation to comply
with all reliability
standards; and.
AESO Replies to Stakeholder Comments: 2013-08-15
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
Page 37 of 48
“interconnection” means the
electrical connection of the AIES
with any electric system in a
jurisdiction bordering Alberta.
When capitalized, it means any
one of the three major electric
system networks in North
America: Eastern, Western, and
ERCOT.
(i) •
(ii) each RAS remedial action
scheme may have different
components and operating
characteristics.
“interconnection” means the
electrical connection of the AIES
interconnected electric system
with any electric system in a
jurisdiction bordering Alberta and
w. When capitalized, it means
any one (1) of the three (3) major
electric system networks in North
America: Eastern, Western, and
ERCOT.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“interconnection reliability
operating limits or IROL” means
a system operating limit, that if
violated, could lead to instability,
uncontrolled separation or
cascading outages that
adversely impact the reliability
of the bulk electric system.
“interconnection reliability
The AESO proposes to update this
operating limits or IROL” means definition to reflect current AESO
a system operating limit, that if drafting principles.
violated, could lead to instability,
uncontrolled separation or
cascading outages that
adversely impact the reliability
of the bulk electric system.
“interruptible demand” means
the demand that the end-use
customer makes available to the
ISO via contract or agreement for
curtailment.
“interruptible demand” means
the demand that a loadthe enduse customer market
participant makes available to
the ISO via contract or
agreement for curtailment.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“legal owner” means the person
“legal owner” means the person
The AESO proposes to update this
AESO Replies to Stakeholder Comments: 2013-08-15
Page 38 of 48
who owns electric industry
property including any one or
more of: (i) a generating unit; (ii)
any aggregated generating
facility;
iii) a transmission facility; (iv)
an electric distribution system;
(v) an industrial system that has
been designated as such by the
Commission; and (vi) a load
facility with system access
service under subsection 101(2)
of the Act.
who owns electric industry
property including any one (1) or
more of:
(i)
a generating unit;
(ii) any aggregated
generating facility;
(iii) a transmission facility;
(iv) an electric distribution
system;
(v) an industrial system that
has been designated as
such by the
Commission; and
(vi) a load facility with system
access service under
subsection 101(2) of the
Act.
definition to match the version in the
ISO rules and to reflect current
AESO drafting principles.
“net actual interchange” means
the algebraic sum of all metered
interchange over all
interconnections between two
physically adjacent balancing
authority areas.
“net actual interchange” means
the algebraic sum of all metered
interchange over all
interconnections between the
balancing authority areas of
two (2)physically adjacent
balancing authoritiesy areas.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“net interchange schedule”
means the algebraic sum of all
interchange schedules with each
adjacent balancing authority.
“net interchange schedule”
means the algebraic sum of all
interchange schedules with
each adjacent balancing
authority.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
“operator” means a person given
expressed authority by a legal
“operator” means a person
given expressed authority by a
The AESO proposes to update this
definition to match the version in the
AESO Replies to Stakeholder Comments: 2013-08-15
Page 39 of 48
owner to operate on the legal
owner's behalf any one or more
of its electric industry properties,
including: (i) a generating unit;
(ii) any aggregated generating
facilities; (iii) a transmission
facility; (iv) an electric
distribution system; (v) an
industrial system that has been
designated as such by the
Commission; and (vi) a load
facility with system access
service under subsection 101(2)
of the Act; and includes the legal
owner, if no such other person
has been so authorized.
legal owner to operate on the
legal owner's behalf any one (1)
or more of its electric industry
properties, including:
(i) a generating unit;
(ii) any aggregated
generating facilityies;
(iii) a transmission facility;
(iv) an electric distribution
system;
(v) an industrial system that
has been designated as
such by the Commission;
and
(vi) a load facility with system
access service under
subsection 101(2) of the
Act;
and includes the legal owner, if
no such other person has been
so authorized.
ISO rules and to reflect current
AESO drafting principles.
“protection system” means
protective relays, associated
communication systems, voltage
and current sensing devices,
station batteries and DC control
circuitry.
“protection system” means an
arrangement of equipment
designed to do one or both of
protect equipment and maintain
the reliable operation of the
interconnected electric system
including:
(i) protective relays which
respond to electrical
quantities;
(ii) , associated communication
systems necessary for
The AESO proposes to update this
definition to match the version in the
ISO rules and to reflect current
AESO drafting principles.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 40 of 48
correct operation of
protective functions;,
(iii) voltage-sensing and
current- sensing devices
providing inputs to
protective relays;
(iv) station direct current supply
associated with protective
functions including , station
batteries, battery chargers
and non-battery-based
direct current supply; and
(i)(v) DC control circuitry
associated with protective
functions through the trip
coils of the circuit breakers
or other interrupting
devices.
“sabotage event” means an
occurrence or resulting
circumstance that a responsible
entity suspects or determines to
have been deliberately caused,
and results in, or could result in,
adverse effects upon the function
or operation of any of the
following:
• one or more generating units;
• one or more transmission
facilities;
• one or more electric
distribution systems;
• the operational,
“sabotage event” means an
occurrence or resulting
circumstance that a responsible
entity suspects or determines to
have been deliberately caused,
and results in, or could result in,
adverse effects upon the function
or operation of any of the
following:
(i) • one (1) or more
generating units;
(i)
(ii) • one (1) or more
transmission facilities;
(ii)
AESO Replies to Stakeholder Comments: 2013-08-15
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
Page 41 of 48
telecommunication, or control
devices associated with one or
more generating units,
transmission facilities, or
electric distribution systems.
“security-based misoperation”
means a misoperation caused by
the incorrect operation of a
protection system or RAS.
Security is a component of
reliability and is the measure of a
device’s certainty not to operate
falsely.
“system operating limit or SOL”
means the value (MW, MVar,
amperes, frequency or volts) that
satisfies the most limiting of
prescribed operating criteria for a
specified system configuration to
ensure operation within
acceptable reliability criteria;
system operating limits are
based upon certain operating
criteria: • facility ratings
(applicable pre- and postcontingency equipment or
(iii) • one or more electric
distribution systems; or
(iii)
(iv) • the operational,
telecommunication, or
control devices associated
with one (1) or more
generating units,
transmission facilities, or
electric distribution
systems.
“security-based misoperation”
means a misoperation caused
by the incorrect operation of a
protection system or
RASremedial action scheme.
Security is a component of
reliability and is the measure of a
device’s certainty not to operate
falsely.
“system operating limit or SOL”
means the value (MW, MVar,
amperes, frequency or volts) that
satisfies the most limiting of
prescribed operating criteria for a
specified system configuration to
ensure operation within
acceptable reliability criteria;
system operating limits are
based upon certain operating
criteria:
(i) • facility ratings (applicable
pre- and post-contingency
AESO Replies to Stakeholder Comments: 2013-08-15
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
The AESO proposes to update this
definition to reflect current AESO
drafting principles.
Page 42 of 48
facility ratings); • transient
stability ratings (applicable preand post-contingency stability
limits); • voltage stability
ratings (applicable pre- and
postcontingencyvoltagestability); •
system voltage limits (applicable
pre- and postcontingencyvoltage limits).
equipment or facility
ratings);
(ii) • transient stability ratings
(applicable pre- and postcontingency stability
limits);
(iii) • voltage stability ratings
(applicable pre- and postcontingency voltage
stability); and
(i)(iv) • system voltage limits
(applicable pre- and postcontingency voltage
limits).
Definitions – Deleted
Existing
Proposed
Rationale
“compliance monitor” means
the entity(s) appointed by the
Commission to carry out
compliance monitoring of
reliability standards.
“compliance monitor” means
the entity(s) appointed by the
Commission to carry out
compliance monitoring of
reliability standards.
This term is only used in the
measures in INT-003-AB-2. The
AESO proposes to delete this term
in favour of its plain language
meaning.
“contributing schedule” means
a schedule between a source
balancing authority and a sink
balancing authority that
contributes unscheduled flow
across a qualified transfer path.
“contributing schedule” means
a schedule between a source
balancing authority and a sink
balancing authority that
contributes unscheduled flow
across a qualified transfer path.
This term is only used in the
Appendix of IRO-006-WECC-AB-1.
The AESO proposes to delete this
term from the glossary and embed
its meaning in the reliability
standard.
“element” means any electrical
“element” means any electrical
The AESO proposes to delete this
AESO Replies to Stakeholder Comments: 2013-08-15
Stakeholder Comments and/or
Alternate Proposal
AESO Reply
Page 43 of 48
device, comprised of one or more
components, with terminals that
may be connected to other
electrical devices such as a
generating unit, transformer,
circuit breaker, bus section, or
transmission line.
device, comprised of one or more
components, with terminals that
may be connected to other
electrical devices such as a
generating unit, transformer,
circuit breaker, bus section, or
transmission line.
term in favour of its plain language
meaning.
“flat frequency” means a mode
of automatic generation control
that calculates area control
error to maintain a constant
interconnected electric system
frequency.
“flat frequency” means a mode
of automatic generation control
that calculates area control
error to maintain a constant
interconnected electric system
frequency.
This term is used once in BAL-004WECC-AB-1. The AESO proposes
to delete this term in favour of its
plain language meaning.
“frequency error” means the
difference between the actual
and scheduled frequency.
“frequency error” means the
difference between the actual
and scheduled frequency.
The AESO proposes to delete this
version of the term as “frequency
error” appears twice in the
Consolidated Authoritative
Document Glossary.
“interconnected transmission
operator” means the entity
outside of Alberta responsible for
the reliability of its “local”
transmission system, and that
operates or directs the operations
of the transmission facilities.
“interconnected transmission
operator” means the entity
outside of Alberta responsible for
the reliability of its “local”
transmission system, and that
operates or directs the operations
of the transmission facilities.
The AESO proposes to delete this
term and use the defined term
“transmission operator” as they
have the same meaning.
AESO Replies to Stakeholder Comments: 2013-08-15
Double-check original filing.
ENMAX Corporation
15. Although “interconnected
transmission operator” and
“transmission operator” have
a similar definition, the
“interconnected transmission
operator” adds clarity that the
transmission operator is
outside of Alberta. Removing
this definition appears to
15. The AESO agrees with
ENMAX that a change to
this defined term requires
further consideration as
the definition of
“transmission operator”
and “interconnected
transmission operator”
incorporates the terms
Page 44 of 48
“peak demand” means:
• the highest hourly integrated
net energy for load within a
balancing authority area
occurring within a given period.
• the highest instantaneous
demand within the balancing
authority area.
“peak demand” means:
• the highest hourly integrated
net energy for load within a
balancing authority area
occurring within a given period.
• the highest instantaneous
demand within the balancing
authority area.
The AESO proposes to delete this
term in favour of its plain language
meaning.
“qualified controllable device”
means a controllable device
approved by the WECC
Operating Committee for
controlling the unscheduled flow
on the qualified transfer paths
and installed in the
Interconnection for controlling
energy flow.
“qualified controllable device”
means a controllable device
approved by the WECC
Operating Committee for
controlling the unscheduled flow
on the qualified transfer paths
and installed in the
Interconnection for controlling
energy flow.
This term is only used in the
Appendix of IRO-006-WECC-AB-1.
The AESO proposes to delete this
term from the glossary and embed
its meaning in the reliability
standard.
AESO Replies to Stakeholder Comments: 2013-08-15
remove clarity in the two
standards where this term is
used, EOP-001-AB-2b and
PRC-001-AB1-1.
“transmission facility” and
“transmission system”
which are Alberta-specific
definitions.
If “interconnected” is to be
removed, the wording in the
above two standards is
“adjacent transmission
operator”. Perhaps “adjacent
transmission operator” should
be a defined term, just as
“adjacent balancing authority”
is a defined term.
Accordingly, the AESO
proposes to remove the
term “interconnected
transmission operator”
from this consultation and
to undo the related,
proposed changes to
EOP-001-AB-2b and
PRC-001-AB1-1.
Page 45 of 48
“qualified transfer path” means
a transfer path designated by the
WECC Operating Committee as
being qualified for WECC
unscheduled flow mitigation.
“qualified transfer path” means
a transfer path designated by the
WECC Operating Committee as
being qualified for WECC
unscheduled flow mitigation.
This term is only used in the
Appendix of IRO-006-WECC-AB-1.
The AESO proposes to delete this
term from the glossary and embed
its meaning in the reliability
standard.
“Quarter” means each
consecutive three months of a
calendar year commencing
January 1.
“Quarter” means each
consecutive three months of a
calendar year commencing
January 1.
The AESO proposes to delete this
term in favour of its plain language
meaning.
ENMAX Corporation
16. The meaning of “quarter” as
being 3 months in duration is
clear; however, “quarter” in
itself does not always mean a
calendar quarter starting Jan
1.
16. The AESO agrees with
ENMAX that if the
expectation is that a
requirement relates to a
calendar quarter, the
reliability standard should
be specific in this regard.
For example, FAC-003-AB1-1
R3 says, “Each legal owner
of a transmission facility must
report quarterly to the ISO…”.
The measure MR3 to 3.4.3
says, “Quarterly reports are
submitted to the ISO by the
dates specified by the ISO.”
ENMAX is not certain that
“quarter” in plain language
always refers to quarters
beginning with January 1. If a
plain language approach is
incorporated, ENMAX would
recommend clarity when
AESO Replies to Stakeholder Comments: 2013-08-15
Page 46 of 48
requirements of any kind
require quarterly reporting
outside of the existing
definition of “quarter”.
“receiving balancing authority”
means the balancing authority
importing the interchange.
“receiving balancing authority”
means the balancing authority
importing the interchange.
This term is used twice in INT-003AB-2. The AESO proposes to
delete this term in favour of the plain
language meaning of “receiving
balancing authority”.
“relief requirement” means the
unscheduled flow reduction on a
qualified transfer path that
would result by curtailing each
sink balancing authority’s
contributing schedules by the
percentages listed in the columns
of WECC Unscheduled Flow
Mitigation Summary of Actions
Table in Attachment 1 WECC
IRO-006-WECC-AB-1.
“relief requirement” means the
unscheduled flow reduction on a
qualified transfer path that
would result by curtailing each
sink balancing authority’s
contributing schedules by the
percentages listed in the columns
of WECC Unscheduled Flow
Mitigation Summary of Actions
Table in Attachment 1 WECC
IRO-006-WECC-AB-1.
This term is only used in IRO-006WECC-AB-1. The AESO proposes
to delete this term from the glossary
and embed its meaning in the
reliability standard.
“sending balancing authority
area” means the balancing
authority area exporting the
interchange schedule.
“sending balancing authority
area” means the balancing
authority area exporting the
interchange schedule.
This term is used twice in INT-003AB-2. The AESO proposes to
delete this term in favour of the plain
language meaning of “sending
balancing authority”.
“transfer distribution factor”
means the percentage of
unscheduled flow across a
qualified transfer path when a
contributing schedule is
implemented.
“transfer distribution factor”
means the percentage of
unscheduled flow across a
qualified transfer path when a
contributing schedule is
implemented.
This term is only used in the
Appendix of IRO-006-WECC-AB-1.
The AESO proposes to delete this
term from the glossary and embed
its meaning in the reliability
standard.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 47 of 48
“transmission connected enduse customer” means an entity
purchasing electricity for their
own use that are connected to
the AIES at a high voltage level
above 25 kV.
“transmission connected enduse customer” means an entity
purchasing electricity for their
own use that are connected to
the AIES at a high voltage level
above 25 kV.
This term is only used in FAC-001AB-1. The AESO proposes to
delete this term from the glossary
and embed its meaning in the
reliability standard.
“transmission service provider”
means the entity that administers
the transmission tariff and
provides transmission service to
Transmission Customers under
applicable transmission service
agreements.
“transmission service provider”
means the entity that administers
the transmission tariff and
provides transmission service to
Transmission Customers under
applicable transmission service
agreements.
This term is used once in INT-006AB-2. The AESO proposes to
delete this term from the glossary as
its meaning is clear in the context of
the reliability standard and the
current definition is actually
incorrect.
“VRC” means the Vancouver
Reliability Coordinator.
“VRC” means the Vancouver
Reliability Coordinator.
The AESO proposes to delete this
term and replace it with “the WECC
Reliability Coordinator”.
AESO Replies to Stakeholder Comments: 2013-08-15
Page 48 of 48