Connections to the grid

The transmission system provides a pathway for power among interconnected power producers, or generators, and distribution companies, or load. ATC desires to actively coordinates with MISO and the interconnected entity to develop and implement both new interconnections and modifications to those already existing.

Generator Interconnections

MISO administers all interconnections of new generation directly to the ATC Transmission System. The ATC Generating Facility Interconnection Guide supplements MISO’s requirements and describes ATC’s minimum requirements for the connection of such generation.

While MISO’s Tariff generator interconnection process may not specifically apply to modifications made to existing generators or associated interconnections, ATC requests that generator owners communicate to ATC for review of proposed modifications that are reasonably anticipated to impact the ATC transmission system by completing and attaching the linked form in an email to GIOANotices@atcllc.com.

To communicate a planned change to a generating unit please complete the following form, save, and submit to the email address above. Feel free to include any pertinent documentation that will assist ATC in the evaluation of the proposed modifications.

Generating Facilities Modification Notification

Transmission Interconnections

The ATC Transmission Interconnection Guide supplements MISO Business Practices for transmission interconnections, describing ATC’s role along with specific guidance for design, construction and operational aspects of a transmission interconnection project.

ATC requests that neighboring transmission owners communicate to ATC for review of proposed new interconnections or modifications to existing interconnections that are reasonably anticipated to impact the ATC transmission system by completing and attaching the linked form in an email to GIOANotices@atcllc.com.

Transmission Interconnection Request Form (TIRF)

Load Interconnections

The ATC Load Interconnection Guide describes ATC’s minimum requirements and process for the connection of load to ATC’s transmission system.

ATC requests that distribution companies communicate to ATC for review of proposed new interconnections or modifications to existing interconnections that are reasonably anticipated to impact the ATC transmission system by completing and attaching the linked form in an email to T-DLIRFS@atcllc.com.

To request a new load interconnection or a modification to an existing load interconnection, complete the following form, save, and submit to the email address above.

Load Interconnection Request Form (LIRF)

Queue

Project Commitment Agreement

Joint Best Value Planning White Paper

ATC Generator Modeling Decision Methodology

Asset Modification Form

Related Resources