MISO provides safe, reliable, equal and non-discriminatory access to the electric transmission system for generator interconnection projects.MISO commits to help current and future interconnection customers navigate the interconnection study process.
Contact us regarding questions not addressed on this page.
Once compete and submitted, generator interconnection requests enter MISO’s Generator Interconnection Queue. Requests within the queue go through three more steps: the Definitive Planning Phase, Optional Studies and Provisional Studies.
Within the DPP, there are three phases and two Decision Points; however, customers must provide M1 and M2 milestones and D1 and D2 study deposits no later than the application deadline published on the Transmission Provider website. MISO will utilize reasonable efforts to complete the DPP System Impact studies and the Facility study in ~355 calendar days.
You may request an optional study to get sensitivity analysis and cost estimates for providing transmission service or interconnection service. The study will identify all of a transmission owner’s interconnection facilities, system protection facilities, distribution upgrades, generator upgrades, common-use upgrades and network upgrades.
MISO conducts optional studies in parallel with interconnection requests or on a stand-alone basis. To initiate an optional study, please provide MISO with:
You may request a Provisional Study for Interconnection Request submission through Interconnection Customer Decision Point II or at any time the Interconnection Facility Study for Network Upgrades becomes delayed by more than 60 calendar days. (see PGIA study application form)
MISO conducts Provisional Studies to offer conditional ERIS to the customer prior to the completion on the Network Upgrades.