Special Meeting of Rochester Public Utility Board July 22, 2026: Mt. Simon Generator Interconnection Agreement Approval
Special Meeting of Rochester Public Utility Board - July 22, 2026
This special meeting of the Rochester Public Utility Board was held on July 22, 2026, at 4:00 p.m. to discuss and approve the Mt. Simon Generator Interconnection Agreement (GIA) with the Midcontinent Independent System Operator (MISO). The board unanimously approved the resolution authorizing the agreement and expenditures up to $5.5 million for local system upgrades.
Public Comments & Testimony
- No members of the public provided comments.
Discussion Items
- Director of Power Resources Bill Bullock presented the GIA, which allows the Mt. Simon Generating Station to interconnect with MISO's transmission system. The agreement is a 30-year contract with an evergreen renewal clause and provides Network Resource Interconnection Service (NRIS), enabling firm capacity exports.
- Bullock highlighted that the expedited resource addition study (ERIS) process saved approximately $14.5 million compared to the original $20 million estimate for interconnection costs, with the total now at about $5.4 million. The city will also receive a refund of prior DPP queue fees (minus $40,000–$50,000).
- Key risks identified include permitting and construction delays, but mitigation measures include early ordering of long-lead equipment and the self-funded nature of the project (both interconnection customer and transmission owner are RPU).
- Board member Patrick Keane asked about local generation and transmission routing; Bullock confirmed the energy will feed into the existing 161 kV line at Westside Substation and that the turbines will operate less frequently than the current reciprocating engines due to lower efficiency.
- Staff acknowledged contributions from Anna Baswamovic, Tom Conlin, and others who managed the application and technical work internally after a large engineering firm declined due to workload.
Key Outcomes
- The board unanimously approved a resolution authorizing the General Manager and City Attorney to execute the Generator Interconnection Agreement with MISO for the Mt. Simon Generating Station.
- Expenditures of up to $5.5 million for local system upgrades were authorized.
- The General Manager or their designee is authorized to perform all acts necessary to administer the project and implement the agreement within the approved expenditure scope.
- The meeting adjourned at 4:14 p.m.
Meeting Transcript
Well, good afternoon, everyone. Um it's four o'clock, and uh the special meeting of the Rochester Public Utility Board to discuss approval and authorization for the Mount Simon Generator Interconnection Agreement with MISO is now called to order. As a reminder, uh this meeting is going to be recorded and recording is available on the city website. The first item on the agenda is the approval of the agenda. And may I have a motion to approve the agenda as presented. I'll make a motion. Second. We have a motion and a second. All in favor, please signify by saying aye. Aye. Aye. Any opposed. The agenda is approved. Next, we'll move to the open public comment period of our meeting. Total comment period is limited to 20 minutes. Each person having two minutes to speak, and any speakers not having the opportunity to be heard tonight or this afternoon, we'll be the first to present at the next board meeting. Is there anyone signed up to make a public comment? There isn't anyone signed up. Thank you so much. Moving next to the regular agenda on our regular agenda, we have item 2A, which is the approval and authorization of the Mount Simon Generator Interconnection Agreement with MISO. And this item will be presented by Director of Power Resources, Bill Bullock. Okay. Thank you, Malikai. Um, so yes, we're here to uh to get your authorization to enter into the generator interconnection agreement for Mount Simon. Um we did, as you may remember, uh a little less than a year ago, got approval to enter the ERIS process, which is the expedited resource addition study. And when they say expedited, they do mean expedited. They gave us exactly a week to comment and return the signed agreement back to them. So it has been reviewed by outside council who gave their approval. Um, but I just wanted to run through just a brief overview of what the agreement provides. Um it is uh an interconnection agreement between the Mount Simon Station and the MISO transmission system. The parties to the agreement are uh as the interconnection customer, Rochester Public Utilities. And on the other side of the table is the transmission owner, which is also Rochester Public Utilities. Um and the transmission service provider is MISO itself, so they're standing in the middle. Um and it establishes responsibilities for design and construction of the interconnection facilities, whatever upgrades are needed to accommodate the additional uh power flows from the uh from the asset. Um, the cost responsibility who bears the cost of what, um, whether it's RPU or RPU. Um, and then the long-term operation and maintenance of the facilities. Um and it is a 30-year agreement with uh kind of an evergreen clause for annual renewals. Um currently um the the agreement also provides network resource interconnection service or NRIS. Um this enables uh the asset to to provide firm capacity. Um the the alternative to NRIS is ERIS, which is energy resource integrate interconnection service. Um and so it's it's much better to have NRIS than ERIS, especially if you're using it for capacity, which we will be. Um so it does define the point of interconnection, um, the uh interconnection facilities themselves, uh the network upgrade required, uh, whatever system protection and then metering and communications. So basically all of the technical details uh of the interconnect. Um it doesn't provide transmission service. We'll still have to pay for transmission service um for our load, um, but this does allow um the the uh capacity to be um to be sold even outside the system. Um so uh the the project responsibilities for for the interconnection customer that's RPU. Um we do have to fund the interconnection um facilities and require network upgrades um that we're causing by installing this. Um we need to meet project milestones and commercial operation dates. Uh we need to provide security and financial guarantees, of course, to the counterparty, which is ourselves, um, which is not hard to do, um, and design construct and operate and maintain the generator side of the facilities. And the transmission owner, which is also RPU, is needs to design and construct the transmission facilities required.
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