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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