ISO Interconnection agreement and queue management
After a resource has completed the study phases of the interconnection process the interconnection customer must sign contracts, install metering and telemetry equipment and ISO must model the resource in market systems before participation in the wholesale power market is allowed. This also applies to Demand Response resources that have completed the process of registering and requesting a customer resource ID.
Process and requirements
Interconnection business practice manuals
To participate in the market, generators must enter into a Generator Interconnection Agreement (GIA), Participating Generator Agreement (PGA), and a Meter Service Agreement (MSA) with the ISO.
Generator interconnection agreement developmentEach interconnection request must enter into a Generator Interconnection Agreement
Participating generator certification (PGA) and meter service agreements (MSA)To participate in the market, generators must enter into a Participating Generator Agreement (PGA) with the ISO. For additional information on the participating generator certification process, fill out the New Participant Contact Form.
Qualified facilities conversionsExisting qualifying facilities owners entering into interconnection agreements must submit affidavits attesting their capability and that electrical characteristics will remain substantially unchanged.
RepoweringThe ISO may need to perform a repowering assessment pursuant to Tariff Section 25.1.2 to confirm that “total capability and electrical characteristics of the Generating Unit will remain substantially unchanged.”
Information for project development activities pre-Initial Synchronization and Commercial Operation Date (COD), including annual transmission plan deliverability affidavits, requesting changes, and affected systems information.
Queue management status reportsCustomers with effective generator interconnection agreements are required to provide status reports on a quarterly basis until they commence construction, when reports are required monthly.
Affected systemsInterconnection customers must provide documentation to the ISO six months prior to generator initial synchronization date confirming that identified affected system operators have been contacted and that any system reliability impacts have been addressed.
Transmission plan deliverability allocation informationGenerating facilities requesting full or partial capacity deliverability status must submit affidavits annually for the transmission plan deliverability allocation process. Dates and details are provided via market notice.
Modification assessmentsThe ISO evaluates a variety of modification requests for interconnection customers’ generator projects with the Material Modification Assessment process. The modification process is described in the BPM for Generator Management.
Interconnection request and technical data formsTo submit a new interconnection request or update an existing interconnection request, use the Interconnection Request Microsoft Word template. Sample completed templates are available for reference. The supplemental Energy Storage Projects Supplemental Information is only needed for projects that include energy storage.