Polar/Alliant – RFP for MISO Capacity

Alliant Energy, through its agent Polar Consulting, has issued this Request for Proposals (RFP) to procure electric capacity supply within the Midcontinent Independent System Operator (MISO) footprint. The procurement covers MISO Planning Years 2027-28 through 2028-29, targeting both fixed and as-accredited quantities of Zonal Resource Credits (ZRCs). ZRCs must be derived from electric generation projects operating under Network Resource Interconnection Service (NRIS) within MISO Local Resource Zones 1 through 7. Additionally, Alliant will accept offers for to-be-converted Seasonal Accredited Capacity (SAC) from projects operating under Energy Resource Interconnection Service (ERIS) within the same zones. The RFP also invites non-conforming, alternative constructs that bidders may propose to help meet Alliant's capacity procurement targets, though bidders are encouraged to submit conforming offers as well.

The scope of this RFP is limited to electric generation resources capable of delivering capacity to MISO's planning reserve margin. Eligible resources include existing and new generation, provided they meet the interconnection service requirements. Alliant is seeking capacity for the two consecutive planning years, with offers evaluated on a portfolio basis. The RFP does not specify a minimum or maximum quantity of capacity to be procured, but bidders should refer to the attached detailed document for specific submission parameters.

Key dates and deadlines are not provided in this summary; interested parties must access the full RFP document via the link below. The RFP document contains complete instructions for submission, evaluation criteria, and any applicable terms and conditions. Alliant reserves the right to accept or reject any and all proposals, and to negotiate with individual bidders. Non-conforming proposals will be evaluated on a case-by-case basis.

Bidders should note that this procurement is exclusively for capacity products within MISO, with no energy or ancillary services included. The RFP is issued by Alliant Energy, a utility holding company serving portions of the Midwest. For full details, including submission deadlines, required forms, and contact information, vendors must download the complete RFP package.