Download Document 8855363

ISO Rules Definitions Amendments
Final Draft – Clean
September 9, 2013
AMENDED
“abbreviated needs identification approval process” means the abbreviated needs
identification approval process as contemplated in the Transmission Regulation.
“Alberta internal load” means a number in MW:
(i) that represents, in an hour, system load plus load served by on-site generating units,
including those within an industrial system and the City of Medicine Hat; and
(ii) which the ISO, using SCADA data, calculates as the sum of the output of each
generating unit in Alberta and the Fort Nelson area in British Columbia, plus import
volumes and minus export volumes.
“balancing authority” means the responsible entity that integrates resource plans ahead of
time, maintains load-interchange-generation balance within a balancing authority area, and
supports interconnection frequency in real time.
“balancing authority area” 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.
“commercial operation” means the date upon which a load or generating unit begins to
operate on the transmission system in a manner which is acceptable to the ISO and which is
expected to be normal for it to so operate, after energization and commissioning.
“constraint effective factor” means a ratio, based on the results of load flow studies conducted
by the ISO, of the change in the flow of electric energy through a transmission constraint to a
change in energy production, energy consumption or an electric energy flow across an
interconnection.
“downstream constraint side” means, in relation to the transmission elements that comprise
the transmission constraint, those elements of the interconnected electric system more
proximate to the load or consumption side of the transmission constraint than to the supply
side of the transmission constraint.
“electrical islands” means a condition in the electrical system where geographical areas of the
interconnected electric system electrically separate from the interconnected electric
system, resulting from system disturbances, such that there exists both generation and load in
these separated areas.
“generic stacking order” means the ISO’s annual forecast of:
(i) the operational issuing of dispatches to generating units, industrial systems that have
been designated as such by the Commission, Fort Nelson, the City of Medicine Hat, and
their respective operating blocks; and
(ii) the MW output from aggregated generating facilities;
Filed with the Commission: 2013-09-09
Page 1
based on historical data and other information the legal owner provides to the ISO expressed
on a seasonal basis.
“import load remedial action scheme” means a service provided by one (1) or more ancillary
service providers that consists of a transfer tripping scheme between the 500 kV circuit
breakers at Langdon and Cranbrook on the Alberta-British Columbia intertie and one (1) or
more system access customer load breakers which such service is designed so that the
tripping of the intertie causes the load breakers to open automatically, within eight (8) cycles of
the trip initiation of the 500 kV breakers.
“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.
“legal owner” means the person who owns electric industry property including any one or more
of:
(i)
a generating unit;
(ii) an 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.
“load shed service” means an amount of load contracted by the ISO to provide:
(i) instantaneous fifty-nine point five (59.5) Hz underfrequency load shedding; or
(ii) manual load shedding.
“maximum authorized real power” means:
(i) for an aggregated generating facility with one (1) or more collector busses, the sum of
the maximum gross real power that the ISO has authorized the generating units to
deliver to those collector busses;
(ii) for an aggregated generating facility without a collector bus, the maximum gross real
power that the ISO has authorized each generating unit to deliver to its generator
terminal; or
(iii) for a generating unit that is not part of an aggregated generating facility, the maximum
gross real power that the ISO authorizes the generating unit to deliver to its generator
terminal.
“operator” means a person given expressed authority by a 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) an 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;
and includes the legal owner, if no such other person has been so authorized.
“point of connection” means a point at which electric energy is transferred between a
Filed with the Commission: 2013-09-09
Page 2
transmission facility that is not an industrial system, and:
(i) the high voltage side of any 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.
“reliability standards” as defined in the Transmission Regulation means the reliability
standards under section 19.
“settlement interval” means a period beginning on the hour and ending sixty (60) minutes later
and is the time increment for which:
(i) the ISO financially settles energy amounts; and
(ii) the load settlement system calculates distinct load estimates.
“system emergency” is a situation in which there is systemic equipment malfunctions, including
widespread transmission or generation outages and derates, a complete loss of communication
with the ISO system controller, or a loss of the ISO system controller’s market management
tools.
“transmission constraint” means a limitation imposed by one (1) or more transmission
elements to normal economic merit operation of generation, load and interchange
transactions or to the flow of electrical energy from one part of the interconnected electric
system to the other.
“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.
“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.
“upstream constraint side” means, in relation to the transmission elements that comprise the
transmission constraint, those elements of the interconnected electric system more
proximate to the supply side of the transmission constraint than to the load or consumption
side of the transmission constraint.
REMOVED
“alert” means a communication issued by the system controller requesting readiness of the
market participants to take urgent and timely actions to maintain the Alberta balancing authority
area in a secure state with regard to energy balance. The alert also serves as information to
interconnected balancing authorities regarding the increased risk of the AIES to require
obligation energy and its limitations in delivering such energy to others.
“AIES” means Alberta’s “Interconnected Electric System” as that term is defined in the Act.
“balancing authority area operator” means the entity that has responsibility for maintaining a
balancing authority's AGC functionality to ensure frequency levels and interchange are
maintained per WECC standards.
Filed with the Commission: 2013-09-09
Page 3
“blackout” a condition where a major portion or all of the AIES is de-energized.
“Commission rules” means rules of the Commission made under the Alberta Utilities
Commission Act.
“commissioning certificate” means the formal document signed by the owner of a project being
constructed under the terms of the ISO request for proposal process (or his representative) and
also by representatives of ISO. The purpose of the document is to certify that all commissioning
tests have been completed and accepted by the ISO, and all deficiencies have been resolved,
or will be resolved by a specified date. Any deficiencies are specifically listed. The date
indicated on this certificate marks the start of commercial operation for the facilities and thus
must be very specific.
“demand customers” are load system access customers and generation system access
customers that consume power, the latter for the purposes of obtaining their back up supply.
“demand opportunity service (DOS)” means service under any one of rate schedules demand
opportunity service (DOS 7 minutes), demand opportunity service (DOS 1 hour), demand
opportunity service (DOS standard).
“demand transmission service (DTS)” means service under rate schedule demand transmission
service.
“dispute” means with respect to an ISO determination, an assertion made by a market
participant to the ISO that it disagrees with such ISO determination.
“emergency limit” means the maximum operating limit of a system element permitted by the
owner of the element for a predefined duration.
“generating facility owner (GFO)” has the meaning as that provided for “owner” in the Act, of a
generating unit.
“import service” means service under rate schedule import service.
“inadvertent interchange or inadvertent energy” means the difference between the balancing
authority’s net actual interchange and net interchange schedule.
“load” means the instantaneous amount of electric energy delivered or required at any specific
point or points on the AIES.
“loss factor methodology” means the detailed methodology for determining loss factors set forth
in Appendix 6.
“meter service provider (MSP)” means an entity that performs installation, removal, repair and
maintenance of meters.
“Mountain Prevailing Time” means Mountain Standard Time when Daylight Saving Time is not
in effect, and Mountain Daylight Saving Time when Daylight Saving Time is in effect.
Filed with the Commission: 2013-09-09
Page 4
“MSA” is the Market Surveillance Administrator and as defined in the Act means the corporation
continued by section 32 of the Alberta Utilities Commission Act.
“net MW” means the megawatt(s) produced by an asset as measured or calculated on the high
voltage side of the unit transformer.
“opportunity service” means system access service offered to any system access customer who
can establish to the ISO’s satisfaction that it would not take system access service pursuant to
rate schedule DTS and with respect to which, therefore, the service requirement presents the
opportunity for incremental revenue with which the ISO can offset transmission costs, subject to
the availability of transmission capacity.
“overfrequency” means the abnormal operating state or system condition that results in a
system frequency above the normal 60-HERTZ.
“owner” has the same meaning as that provided in the Act.
“power system data” means a compilation of electrical characteristics in an integrated format
representative of the physical system.
“power system stabilizer” means automatic control equipment that modulates the generating
unit excitation through an AVR to dampen electric power swings.
“Quarter” means each consecutive three months of a calendar year commencing January 1.
“site” means a unique end-use service delivery point. This is the finest level at which load
settlement recognizes retailer assignments, and receives consumption data.
“system access service agreement” means that contract, entered into between the ISO and a
system access customer, which establishes the specific terms pursuant to which each individual
system access customer obtains system access service.
“system controller” means the ISO scheme to carry out the ISO duty to direct the safe, reliable
and economic operation of the AIES, pursuant to the Act and includes the dispatching of the
energy market merit order and the ancillary services merit order.
“system coordination plan” means the plan which theISO provides to the TFOs and the system
controller three (3) days in advance of the operating week which amalgamates all planned
maintenance outages and commissioning activities that the ISO has been advised of, and which
are scheduled to take place in the next operating week, and have been determined to pose an
acceptable level of risk to system security from an operational planning perspective.
“T-Reg” means the Transmission Regulation, as amended from time to time.
“transmission facility owner (TFO)” has the same meaning as that provided for “owner” and
“transmission facility” in the Act.
“Transmission Operations Coordination Committee (TOCC)” means the committee accountable
Filed with the Commission: 2013-09-09
Page 5
to the ISO, with membership made up of transmission facility owners, charged with ongoing
review and upgrading of all operating standards and guidelines for coordinated operation of the
balancing authority and transmission system.
“transmission system losses” means, for each year, the total of the transmission system losses
on the interconnected electric system.
“underfrequency” means the abnormal operating state or system condition that results in a
system frequency below the normal system operating frequency of 60-HERTZ.
“wire owner (WO)” has the meaning as that provided in the Act for “owner” and “electric
distribution system”. Wire owners maintain the responsibilities as that provided in the Act and
the Roles, Relationships and Responsibilities Regulation.
Filed with the Commission: 2013-09-09
Page 6