Post on 10-Aug-2020
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• Appendix DD 2.4.3
• Cluster is the most common study type
• Delineation within the interconnection process due to size
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• Appendix DD Sections 6-8
• April 1-30 is the only cluster application window each year.
• Study Groups are projects that are electrically related
• Two year period covers Scoping Meeting, two study phases, and deliverability allocation (these elements to be covered in “Interconnection Timeline and Process” session)
• A Study Group is a group of electrically related projects usually located in a certain geographic area.
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• Appendix DD Section 3
• Cluster is the most common study type
• All of the elements (IR, technical data, Study Deposit, Site Exclusivity) constitute an Interconnection Request and must be received during the April 1-30 application window.
• Links to sample IRs can be found at the end of this presentation.
• Requested information needs to be complete and accurate.
• Deposit can be made via Fed Wire transfer or check – ACH is not accepted. Please be sure and reference the project name in the notes area of wire transfer or check for easy matching.
Wells Fargo Bank (LGIP)
ABA 121000248
Acct 4122041825
Federal Tax ID # 94-3274043
CAISO is a Corporation
• Funds must be received no later than April 30th.
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• Link to the Generator Interconnection queue at the end of the presentation
• Includes non-confidential project information (Study Type, size, location POI, COD, current study status, status of the GIA)
• Tab for Active projects (project is study process through GIA execution and build out of project, Completed projects (projects that are commercially available), and Withdrawn projects
• Posted in Excel and pdf formats, Excel allows you to “slice and dice” the data in a manner that is meaningful to you
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Appendix DD Section 4
COD = Commercial Operation Date
IR = Interconnection Request
Important to submit as early as possible before the close of the Cluster window, or you will have to wait until after the Cluster process.
Site Exclusivity can be met via documentation ONLY
Electrical Independence is met by passing flow impact and short circuit test
Scoping Meeting bring engineers together in prep for study work
System Impact Study (Section 4.4) includes short circuit, stability, and power flow analysis
Facilities Study (Section 4.5) specifies and estimates cost of equipment, engineering, and construction work.
ISP Behind-the-meter expansion
Tariff allows existing facility to increase up to 125% of original project capacity. Total project expansion cannot exceed 100 MW.
Expansion is after COD
Expanded capacity needs separate breaker and meter
ISO can trip if project goes above studied capacity
No increase in NQC
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Appendix DD Section 5
EO = Energy Only
No larger than 5MW with Energy Only deliverability; however, it can be an expansion to existing project/resource, but overall size cannot exceed 20MW.
Only documentation can be used to satisfy Site exclusivity for FT projects, just like ISP. No deposit in lieu.
Screens must be met… Screens are detailed in Section 5.3
Customer Options meetings are needed if they fail the screens.
Supplemental Review is meeting based on the outcomes of the Customer Options Meetings (includes a short study process and additional deposit for estimated costs)
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NQC = Net Qualifying Capacity
Deliverability is the difference between a project that is Energy Only and Full Capacity.
EO simply allows the energy to flow on the grid.
FC allows a resource to help meet Resource Adequacy requirements; the incentive is that the resource can receive NQC payments above what they receive for supplying energy.
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Appendix DD Section 9.2
After TP allocation process
EO = Energy Only
TP = Transmission Plan
GIA = Generator Interconnection Agreement
Annual Process follows the Cluster process and actually uses the same IR application.
Payment of study fee does not guarantee of deliverability
Previously studied for EO
Option A not allocated TP Deliverability that converted to EO
Option B which chose Partial Capacity deliverability, now wants additional deliverability
Both Option A and B must have GIAs in good standing.
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Appendix DD Section 9.4
BA = Balancing Authority
IR = Interconnection Request
IFS = Interconnection Financial Security
Rare, since most transmission is on PTO facilities, rather than Non-PTO facilities.
Projects wish to obtain FC or Partial Capacity.
Must submit CAISO IR since we do the Deliverability studies for all study processes.
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Section 40.4.6.3
TPP = Transmission Planning Process
WDAT = Wholesale Distribution Access Tariff
UDC = Utility Distribution Company
BPM = Business Practice Manual
This process is not part of GIDAP (Appendix DD); the process is outlined in CAISO Tariff Section 40.4.6.3
UDC manages the application process and assignment of deliverability subject to the CAISO Tariff.
CAISO reviews the applications and validates assignments.
Only applies to distribution level projects ONLY.
Qualifying Facilities (QF) conversions have grandfathered deliverability.
DG must complete New Resource Implementation Checklist to utilize the assigned deliverability
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• Interconnection Specialists ensure all projects are treated in accordance with the current applicable tariff provisions
• Issuance of reports is going to be through our secure Resource Interconnection Management System database (RIMS). It is imperative that you apply for access at your earliest opportunity following submission of your Interconnection Request.
• There is a demo of the system and information on how to get access in room 1540 today.
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