November 16, 2012 Terry Wolf, Manager of Transmission Services Agenda Meeting Purpose MRES Profile Attachment O Calculation Capital Projects Budget Risks Question/Answer Meeting Purpose To provide an informational forum regarding the MRES forecasted Attachment O for 2013. The forecasted Attachment O for 2013 is calculated using the Midwest ISO’s EIA Form 412 Attachment OMRES template with a projected net revenue requirement and projected load. Rates become effective on January 1, 2013 for joint pricing zone comprised of Otter Tail Power Company, Great River Energy, and MRES. Attachment GG, MM effective January 1, 2013. - 61 Members served - Transmission: ~239 miles - Generation: ~744 MW - Renewable: ~86 MW Missouri River Energy Services Rugby Wind Project Fort Peck Dam ITA Garrison Dam Canyon Ferry Dam Big Horn River CapX Fargo Yellowtail Dam Oahe Dam Irv Simmons Big Bend Dam Fort Randall Dam Laramie River Station Watertown Power Plant CapX Brookings Point Beach Nuclear Plant Marshall Wind Project Gavin’s Point Dam Odin Wind Project Worthington Wind Project MBPP MRES Member MRES Generation Resource Planned MRES Generation Resource Federal Hydroelectric Dam Transmission Projects (MBPP, Irv Simmons, ITA, CapX (Fargo, Brookings) Exira Station Red Rock Hydroelectric Plant MRES FERC Activities Transmission facilities are owned by Western Minnesota Municipal Power Agency (WMMPA) FERC Declaratory Order (EL08-22, 12/08) combines financial statements for ATRR Attachment O effective 6/1/11 Incentive filing (EL11-45, 6/11) CapX; Fargo P2 & P3, and Brookings CWIP, Abandon Plant, Hypothetical cap structure 205 filing (ER12-351, 11/11) FERC Approved ER12-351, and EL 11-45 on January 20, 2012 Forward Looking Attachment O Forward Rate Requirements Rate Base Operating Expenses Revenue Requirement and Rate Network Rate Summary Forward Rate Requirement By June 1 of each year, MRES will post on OASIS all information regarding any Attachment O True-up Adjustments for the prior year. 2012 Forward Looking Attachment O will be true-up info will be posted June 2013. MRES will post on OASIS its projected Net Revenue Requirement including the True-Up Adjustment and load for the following year, and associated work papers in October. MRES will hold a customer meeting to explain its formula rate input projections and cost detail. Total Rate Base Rate Base Item 2013 Projected (Monthly Average) 2012 Projected (Monthly Average) $ Change % Change Explanation Gross Plant in Service $ 71,513,182 $ $67,918,031 $ 3,595,151 The increase is due mainly to the projected 5.3% capitalization of CapX Fargo Phase 2 in December 2013. Accumulated Depreciation $ 36,603,167 $ $35,634,208 2.7% Net Plant in Service CWIP $34,910,016 $ 968,959 $ $32,283,823 $ 2,626,193 Annual Depreciation Expense combined with projected additions and retirements. 8.1% The increase is due to CapX Fargo Phases 2 $ 47,377,921 $ $21,383,316 $ 25,994,605 121.6% and 3 ($15.3M) and CapX Brookings ($10.7M). Working Capital, M&S and Prepayments $ 1,350,564 Total Rate Base $ 83,638,500 $ 1,385,904 $ (35,340) (2.5%) $ 55,053,043 $ 28,585,457 51.9% Net Plant + CWIP + Working Capital Note: The above numbers are transmission only and general and intangible plant allocated to transmission. Rate Base Earning Hypothetical Capital Structure Return Rate Base Item 2013 Projected (Monthly Average) 2012 Projected (Monthly Average) $ Change % Change The increase is due to the projected 100% capitalization of CapX Fargo Phase 2 in December 2013. Gross Plant in Service $ 2,077,329 $- $ 2,077,329 Accumulated Depreciation $- $- $- -% Net Plant in Service $ 2,077,329 $- $ 2,077,329 100% CWIP Projects included in Rate Base Working Capital Rate BaseHypothetical Capital Structure Explanation The increase is due to CapX Fargo $ 47,377,921 $ 21,383,316 $25,994,605 121.6% Phases 2 and 3 ($15.3M) and CapX Brookings ($10.7M). $- $- $- -% $ 49,455,250 $ 21,383,316 $ 28,071,934 131.3% Net Plant + CWIP + Working Capital Note: The above numbers are transmission only and general and intangible plant allocated to transmission. Operating Expenses Expense Item 2013 Projected 2012 Projected $ Change % Change O&M $ 5,133,693 $ 5,124,596 $ 9,097 0.2% Depreciation Expense $1,026,565 $ 975,327 $ 51,238 5.3% Taxes Other than Income $304,013 $ 291,819 $ 12,194 4.2% Operating Expense $6,464,271 $ 6,391,742 $ 72,529 1.1% Explanation Increase in Depreciation Expense due to projected plant additions. O&M + Depreciation + Taxes Note: The above numbers are transmission only and A&G expenses, general plant depreciation and taxes allocated to transmission. Return on Rate Base (Actual Capital Structure) 2013 Projected 2012 Projected $ Change % Change Long Term Debt 73% 73% $- -% Proprietary Capital 27% 27% $- -% Total 100.00% 100.00% $- -% Cost of Debt 5.48% 5.63% N/A MISO Equity Return 12.38% 12.38% N/A Rate of Return 7.35% 7.45% N/A Total Rate Base Allowed Return – Actual Capital Structure Explanation Difference is due to benefit of (0.15%) refinancing in late 2012 and projected cost of debt issuance in late 2013. Equity return approved for MISO 0.00% Transmission Owners. (LTD*Cost of Debt) + (Proprietary (0.10%) Capital * MISO Equity Return) $ 83,638,500 $ 55,053,043 $28,585,457 51.9% From Rate Base Calculation $ 6,144,901 $ 4,100,525 $2,044,376 Increase largely due to additional 49.9% transmission investment. See Rate Base slide for additional detail. Return on Rate Base (Hypothetical Capital Structure) 2013 Projected 2012 Projected Long Term Debt 55% 55% Proprietary Capital 45% 45% Total 100.00% 100.00% Weighted Cost of Debt 5.48% 5.63% MISO Equity Return Rate of Return – Hypothetical Capital Structure 12.38% 12.38% 8.58% 8.67% 55% * Cost of Debt plus 45% * 12.38% Rate of Return - Actual Capital Structure 7.35% 7.45% See previous slide. Difference between Hypothetical and Actual Capital Structure 1.238% 1.22% Rate Base - Hypothetical Capital Structure $ 49,455,250 $ 21,383,316 Additional Return – Hypothetical Capital Structure $ 612,157 $ 260,632 Comments Capital Structure approved in docket EL 11-45-000. See previous slide. Hypothetical and actual capital structure difference * Hypothetical Capital Structure Rate Base Revenue Requirements 2013 Projected 2012 Projected $ Change % Change Return - Actual Capital Structure $ 6,144,901 $ 4,100,525 $ 2,044,376 49.9% Additional Return – Hypothetical Capital Structure $ 612,157 $ 260,632 $ 351,525 134.9% Operating Expense $ 6,464,271 $ 6,391,742 $ 72,529 1.1% Total Revenue Requirement $ 13,221,329 $ 10,752,899 $2,468,431 23.0% Attachment GG Adjustments ($ 5,374,066) ($ 2,946,393) $(2,427,673) 82.4% Projected credit for the CapX Fargo Project. Attachment MM Adjustments ($ 1,614,449) ($ 851,343) ($ 763,106) 89.6% Projected credit for the CapX Brookings Project. $ 6,955,163 ($ 722,349) (10.4%) Attachment O Revenue Requirement Before credits $ 6,232,814 Explanation Revenue Credits $ 135,153 $ 135,153 $- -% Revenue credits assumed to remain unchanged from 2012 to 2013. Net Attachment O Revenue Requirement $ 6,097,661 $ 6,820,010 ($ 722,349) (10.4%) Revenue Requirement before credits less Revenue Credits 2013 MRES Annual Transmission Revenue Requirement Distribution MRES Total ATRR Attachment O, GG, MM $13,086,176 Attachment O MISO Attachment GG MISO Attachment MM CapX Fargo CapX Brookings $5,374,066 $ 1,614,449 41% 12% $6,097,661 47% MISO Non-MISO OTP PRICING ZONE IS PRICING ZONE $2,830,518 $3,267,143 46% of Att O 54% of Att O 14 Attachment O Rate Summary $1.00 $0.80 $0.79 $0.75 $0.74 $0.60 $0.40 $0.20 $0.07 $$(0.02) $(0.20) $(0.20) $(0.40) $(0.60) $(0.65) $(0.80) Return- Actual Capital Structure Additional ReturnHypothetical Capital Structure Operating Expenses Attachment GG Adjustment Attachment MM Adjustment Revenue Credits 2012 Projected ATRR Capital Projects: Transmission Line Projects in MISO > $500K Project Brookings – Twins Cities 345 kV Line Fargo – St. Cloud 345 kV Line Estimated Voltage In-Service Date 345 kV 2015 for entire project 345 kV 2015 for entire project Forecasted 2013 Capital Additions by yr end Project Description MTEP Project ID 1203 – Attachment MM $ 12,227,081 Build new 345kV line from SD to SE Twin Cities (250 miles) MTEP Project ID 286 – Attachment GG Build new 345 kV line from St. Cloud $ 19,788,401 (Quarry) to Alexandria to Fargo (Bison) (MN/ND) (190 miles), includes Alexandria substation. Budget Risks Revenue Financing Demand/ Weather Regulatory Findings Tight Budgets Timing of Capital Projects Questions If you have any additional questions after the meeting, please submit via e-mail to Terry Wolf: twolf@mrenergy.com All questions and answers will be distributed by e-mail to all attendees. Additionally, the questions and answers will be posted on the MRES OASIS website (http://oasis.midwestiso.org/OASIS/MRET) within two weeks from the date of inquiry.