Generation of energy requires a physical interconnection between the generator and the existing SCE Transmission/Distribution Grid. SCE will need to study your project and prepare an Interconnection Agreement between SCE and the generator. For projects at lower voltage levels (typically 66kV or less), the Wholesale Distribution Access Tariff will apply. Regardless, your first step is to submit a WDAT Application with technical data and a Distribution Service Application to SCE.
If your project is interconnecting at higher voltage (typically anything higher than 66kV), there is a similar, but distinct, process that is led by the California Independent System Operator who coordinates with SCE for projects in our region. Information for that process can be found in the CAISO’s Tariff.
To sell your generation, or net it against your existing usage (net metering), you’ll need to work with other groups at SCE or other agencies that wish to buy power. For net metering and related programs, click here. For power sales to SCE, click here for SCE Power Purchase Programs and the best Power Purchase Agreement for your project.
Cluster Application Window Schedule Applicable To Generator Interconnection Requests Processed Under The Cluster Study Process
In accordance with SCE's WDAT Generator Interconnection Procedures (GIP), Cluster Application Windows will be opening (and closing) within the following schedule:
Anticipated Queue Schedule
Cluster
Opening Date
Closing Date
Queue Cluster Window 5*
First Cluster Application Window
Mon Oct 17, 2011
Tue November 15, 2011
Second Cluster Application Window
Thu Mar 01, 2012
Apr 02, 2012
Queue Cluster Window 6
First Cluster Application Window
Mon Oct 15, 2012
Thurs Nov 15, 2012
Second Cluster Application Window
Fri Mar 01, 2013
Mon Apr 01, 2013
* Corresponds to the 2012 Interconnection Study Cycle.
Interconnection Requests for processing under a Cluster Process must be submitted during a Cluster Application Window. There will be two Cluster Application Windows associated with each Interconnection Study Cycle. The first Cluster Application Window will open on October 15 and close on November 15 of the year prior to the year in which the Interconnection Studies are performed. The second Cluster Application Window will open on March 1 and close on March 31 of the year in which the Interconnection Studies are performed.
Wholesale Distribution Access Tariff
Under the WDAT, see Attachment I for Generation Interconnection at the Distribution level.
Interconnection Study Reports For SCE-WDAT Generator — Interconnection Requests Greater Than 20 MW (PDFs)
Cluster Application Window Schedule Applicable to Generator Interconnection Requests Processed under the Cluster Study Process
In accordance with SCE's WDAT Generator Interconnection Procedures (GIP), Cluster Application Windows will be opening (and closing) within the following schedule:
Anticipated Queue Schedule
Cluster
Opening Date
Closing Date
Queue Cluster Window 1
Mon Aug 11, 2008
Fri Jul 31, 2009
Queue Cluster Window 2
Thu Oct 01, 2009
Sun Jan 31, 2010
Queue Cluster Window 3
Thu Apr 01, 2010
Sat Jul 31, 2010
Queue Cluster Window 4
Fri Oct 01, 2010
Thu March 31, 2011
Queue Cluster Window 5*
First Cluster Application Window
Mon Oct 17, 2011
Tue November 15, 2011
Second Cluster Application Window
Thu Mar 01, 2012
Apr 02, 2012
* Corresponds to the 2012 Interconnection Study Cycle.
Interconnection Requests for processing under a Cluster Process must be submitted during a Cluster Application Window. There will be two Cluster Application Windows associated with each Interconnection Study Cycle. The first Cluster Application Window will open on October 15 and close on November 15 of the year prior to the year in which the Interconnection Studies are performed. The second Cluster Application Window will open on March 1 and close on March 31 of the year in which the Interconnection Studies are performed.
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