September 16, 2015

Subject: Great River Energy’s 2016 Projected Formula Rate Presentation Meeting

Date: Friday, October 23, 2015

Time: 1:00 p.m. to 2:30 p.m. CDT

Great River Energy cordially invites you to participate in a discussion of its projected formula rates for the 2016 rate year. The purpose of this meeting is to present information that will clarify and explain Great River Energy’s 2016 projected formula rate information posted on the MISO website and OASIS on September 1, 2015 and allow Interested Parties an opportunity to seek information and clarifications from Great River Energy about the projected formula rates.

Pursuant to the formula rate protocols established in FERC Docket No. ER13-2379, Great River Energy must calculate and post its formula rate calculations, supporting documentation, and work papers for the next rate year by September 1 of each year. In addition, Great River Energy is required to hold an open meeting among Interested Parties by October 31 of each year to discuss this posting. The Great River Energy rate information for the 2016 rate year is posted on the Great River Energy page of the MISO OASIS which can be accessed through the MISO website at:

https://www.misoenergy.org/MarketsOperations/TransmissionSettlements/Pages/TransmissionOwnerRateData.aspx

At your earliest convenience, please RSVP to Mike Saer at or (763) 445-5303 and indicate whether you will be attending via webcast or in person at Great River Energy’s Maple Grove headquarters.

Great River Energy headquarters

12300 Elm Creek Blvd

Maple Grove, MN 55369

Agate conference room (1st floor, SE corner of building)

A webcast will be available using the following link:

https://meetings.grenergy.com/orion/joinmeeting.do?MeetingKey=992421467&PW=BgAAAGuwG6p8Syd7viw0OFRbllAoJvDIjqZlCREnNb39-pbl79kI6TTqjrf96ei_Ue4ddLbgUp-IGlx1smrOq3jtQIiO

Meeting Number: 992 421 467

Meeting Password: 1234

The audio conference information is as follows:

Telephone Number: 763-445-5065

Access Code: 992 421 467

A presentation will be posted on the Great River Energy page of the MISO OASIS in advance of the meeting.

Mike Saer

Transmission Tariff Strategist

Great River Energy