Resource interconnection related definitions and acronyms

Find definitions and acronyms related to interconnecting a resource with the ISO balancing authority.  They originate from the ISO Tariff and the Business Practice Manual for Definitions and Acronyms.  Please see the Glossary for a complete list of ISO definitions and acronyms. 

 

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Definition
AApproved Project Sponsor Agreement
An agreement between an Approved Project Sponsor and the CAISO establishing the terms and conditions under which the Approved Project Sponsor will complete the siting and construction of the transmission facilities that the Approved Project Sponsor was selected to construct and own under Section 24. Among other terms, the Agreement shall include any binding cost control measures, including cost caps, that the Approved Project Sponsor specified in its proposal.
CCAISOCalifornia Independent System Operator Corporation
The California Independent System Operator Corporation, a state chartered, California non-profit public benefit corporation that operates the transmission facilities of all Participating Tos and dispatches certain Generating Units and Loads. [T]
CCluster Application Window
The time period for submitting Interconnection Requests as set forth in Section 3.3 of Appendix Y. [T]
CClustering
The process whereby a group of Interconnection Requests is studied together, instead of serially, for the purpose of conducting the Interconnection System Impact Study. [T]
CCHP ResourceCombined Heat and Power Resource.
A Generating Unit that produces electric energy and forms of useful thermal energy used by an industrial or commercial host for industrial, commercial, heating or cooling purposes or a Generating Unit that produces electricity from waste heat from an industrial or commercial host. [T]
CCommercial Operation
The status of a Generating Unit or project phase at a Generating Facility that has commenced generating electricity for sale, excluding electricity generated during Trial Operation. [T]
CCODCommercial Operation Date
The date on which a Generating Unit or project phase at a Generating Facility commences Commercial Operation as agreed to by the applicable Participating TO, the CAISO, and the Interconnection Customer pursuant to Appendix E to the Large Generator Interconnection Agreement, and in accordance with the implementation plan agreed to by the Participating TO and the CAISO for multiple individual Generating Units or project phases at a Generating Facility where an Interconnection Customer intends to establish separate Commercial Operation Dates for those Generating Units or project phases. [T]
CConstruction Activities
Actions by a Participating TO that result in irrevocable financial commitments for the purchase of major electrical equipment or land for Participating TO’s Interconnection Facilities or Network Upgrades assigned to the Interconnection Customer that occur after receipt of all appropriate governmental approvals needed for the Participating TO’s Interconnection Facilities or Network Upgrades. [T]
DDeliverability Assessment
An evaluation performed pursuant to the CAISO On-Peak Deliverability Assessment posted on the CAISO website, to determine if a Generating Facility or a group of Generating Facilities could provide Energy to the CAISO Controlled Grid and be delivered to the aggregate of Load on the CAISO Controlled Grid at peak Load, under a variety of severely stressed conditions. [T]
DDERDistributed Energy Resource

​Any resource with a first point of interconnection of a Utility Distribution Company or Metered Subsystem. [T]

DDistributed Energy Resource Provider Agreement

​An agreement between the CAISO and a Distributed Energy Resource Provider, a pro forma version of which is set forth in Appending B.21. [T]

DDistribution System
The distribution assets of an IOU or Local Publicly Owned Electric Utility. [T]
DDynamic Schedule


A telemetered reading or value which is updated in Real-Time and which is used as an Interchange Schedule in the California ISO Energy Management System calculation of Area Control Error and the integrated value of which is treated as an Interchange Schedule for Interchange accounting purposes. [T]



GGenerating Facility
An Interconnection Customer's Generating Unit(s) used for the production and/or storage for later injection of electricity identified in the Interconnection Request, but shall not include the Interconnection Customer's Interconnection Facilities.



GGeneration
Energy delivered from a Generating Unit. [T]
GGIDAPGeneration Interconnection and Deliverability Allocation Procedures
The interconnection procedures applicable to an Interconnection Request pertaining to a Generating Facility processed under Appendix DD. [T]
GGenerator


The seller of Energy or Ancillary Services produced by a Generating Unit. [T]



GGenerator Communication Certification Practice Statement
The statement of practices that the ISO employs in issuing digital public key certificates to facilitate secure electronic transactions and exchanges of information with regard to the systems employed by the ISO for resource telemetry.
GGenerator Downsizing Deposit

​A deposit in the amount of sixty thousand dollars ($60,000) to be submitted as part of the Generator Downsizing Request. [T]

GGenerator Downsizing Process

​The annual process set forth in Section 7.5 of the GIDAP pursuant to which Interconnection Customers can request reductions to the megawatt capacity of their Small or Large Generating Facilities. [T]

Generator Downsizing Request

​A request submitted under Section 7.5 of the GIDAP to reduce the megawatt generating capacity of a Small or Large Generating Facility. [T]

GGenerator Downsizing Request

​A request submitted under Section 7.5 of the GIDAP to reduce the megawatt generating capacity of a Small or Large Generating Facility. [T]

GGenerator Downsizing Request Window

​The annual time period during which Interconnection Customers may submit Generator Downsizing Requests for inclusion in the associated annual Generator Downsizing Process. The Generator Downsizing Request Window will open on October 15 and close on November 15 of each calendar year. [T]

GGIAGenerator Interconnection Agreement
The form of Interconnection Agreement applicable to an Interconnection Request pertaining to a Generating Facility processed under the interconnection procedures set forth in Appendix Y. For a Large Generating Facility, a pro forma version of the Interconnection Agreement is set forth in Appendix CC. For a Small Generating Facility, a pro forma version of the Interconnection Agreement is set forth in Appendix T. [T]
GGenerator Interconnection and Deliverability Allocation Procedures
The Interconnection procedures applicable to an Interconnection Request pertaining to a Generating Facility processed under Appendix DD. [T]
GGIPGenerator Interconnection Procedures
The interconnection procedures applicable to an Interconnection request pertaining to a Generating Facility processed under Appendix Y. [T]
GGenerator Interconnection Study Process Agreement

​The agreement between the CAISO and the Interconnection Customer for conducting the Interconnection Studies for a proposed Generating Facility processed under Appendix Y, a pro forma version of which is accepted by FERC, posted on the CAISO Website, and set forth in Appendix Y. [T]

GGroup Study

​The process whereby more than one Interconnection Request is studied together, instead of individually, for the purpose of conducting one or more of the Interconnection Studies or analyses therein. [T]

GIndependent Study Process
The GIP or GIDAP procedure for evaluating an Interconnection Request for a Generating Facility independently of the process applicable to a Generating Facility assigned to a Queue Cluster or the Fast Track Process. [T]
IIBAAIntegrated Balancing Authority Area
A Balancing Authority Area as provided in Section 27.5.3 that has been determined to have one or more direct interconnections with the California ISO Balancing Authority Area, such that power flows within the IBAA significantly affect power flows within the California ISO Balancing Authority Area, and whose network topology is therefore modeled in further detail in the California ISO’s Full Network Model beyond the simple radial modeling of interconnections between the IBAA and the California ISO Balancing Authority Area. [T]
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