Documentation on interconnecting a large industrial load or a generator to the SIPC transmission system or an SIPC member/owner distribution system is provided below.
For generation less than 40 kW in size, Interconnection Customers should communicate directly with SIPC member/owner distribution utilities. Similarly, for generation connecting to 100 kV and above, Interconnection Customers should communicate directly with Midcontinent Independent System Operator, Inc (MISO).

The process for interconnecting generation can be found in the SIPC Generation Interconnection Flow Chart.
SIPC Generation Interconnection Flow Chart

New Load Connections

For new large, industrial loads, applicants will initially communicate directly with SIPC member/owner distribution utilities. Information on the process and data that may be requested is here.

Generation Interconnections > 40 kW and < 100 kV

For generation interconnections greater than 40 kW in size and connecting to < 100 kV, Interconnection Customers should submit an application and any required fees directly to SIPC. Information on the process, system protection requirements, and the application are provided below:

SIPC Application – Interconnection Request
SIPC Interconnection Process
SIPC Generation Interconnection Protection Requirements

Application Processing Fee for sites less than or equal to 5 MW is $5,000, non-refundable.
Application Processing Fee for sites greater than 5 MW and less than 50 MW is $20,000, non-refundable.

SIPC will assess a $1,000/MW/month fee, non-refundable, to hold a queue position if an Interconnection Agreement has not been fully executed within the specified timelines of the SIPC Engineering Studies for Generation Interconnection Process document and the Interconnection Customer wishes to stay in the queue.

All application processing fees will be applied to the total interconnection cost if an Interconnection Agreement is fully executed.

For generation less than or equal to 5 MW, SIPC offers avoided costs for excess generation beyond the usage metered in each billing cycle.

For generation greater than 5 MW, the Interconnection Customer will have to be registered as a MISO Market Participant.

Generation Interconnections Connecting to > 100 kV or sites ≥ 50 MW

For generation interconnections connecting to > 100 kV or sites ≥ 50 MW, Interconnection Customers should proceed through the MISO process, which can be found here.

MISO will establish communication to SIPC. Information on SIPC Facility Interconnection Requirements for these interconnections is located here.