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Rate Impact Task Force’s Updated Results for it’s Report to the SPP Regional State Committee 11/30/2010 DRAFT

Updates Since Oct 13, 2010 Presentation ATRR Zonal Cost Forecast Updated: New Costs (PP and BP, $327M total increases) Updated In-Service Dates Re-calculated BP Transfers: $64M/yr from $31.2M/yr Costs Updated in Each Zone’s Results 3

Differential Analysis of New v. Old Forecast 2017 Differential = Change - Base 4

Differential Analysis of New v. Old Forecast 2017 Differential = Change - Base 5

New Zonal Results Presented Sunflower Electric Power Corporation City Utilities of Springfield Missouri Mid-Kansas Electric Company Western Farmers Electric Cooperative 6

Rate Impact Task Force Results Four Types of Customers Considered 1.1,000 kWh/mo residential 2.4,000 kWh/mo small commercial 3.Actual average residential 4.Actual average small commercial 7

Rate Impact Task Force Results, cont.  Monthly Incremental Cost Impact of Investment by Customer Rate Type Determined, 3% Straight Line Depreciation and Balancing Transfers Included  Selected Quantitative Monthly Benefits Impact by Customer Rate Type Used to Off-Set Costs  Monthly Rate Incremental Impact by Customer Rate Type Determined  Focus: 2017, Typical Peak Cost Year 8

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Detailed Results by Type For Each Customer Type, “All-In-One” Graphs are Presented:  Monthly Cost Incremental to Current Bill (Red Bar)  Monthly Benefits Offset Cost (Green Bar)  Monthly Net Impact Incremental to Current Bill (Orange Bar with $/Month Value) 11

Summary RITF 2017 Results, 1,000 kWh/mo Residential 12

RITF 2017 Results, 4,000 kWh/mo Small Commercial 13

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RITF 2017 Results, Actual Average Residential 15

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Summary RITF Results, Actual Average Small Commercial 17

Detailed View of Each Result  For Each Customer Type by Zone  1000 kWh/mo Fixed Residential  4000 kWh/mo Fixed Small Commercial  Actual Average Residential  Actual Average Small Commercial  Each Result by Zone  Cost  Benefit  Net 18

Cost Results, 1,000 kWh/mo Residential 19

Benefits Results, 1,000 kWh/mo Residential, Shown as Negative Costs 20

Net Impact Results, 1,000 kWh/mo Residential 21

Cost Results, 4,000 kWh/mo Small Commercial 22

Benefit Results, 4,000 kWh/mo Small Commercial 23

Net Impact Results, 4,000 kWh/mo Small Commercial 24

Cost Results, Average Residential 25

Benefits Results, Average Residential 26

Net Impact Results, Average Residential 27

Cost Results, Average Small Commercial 28

Benefits Results, Average Small Commercial 29

Net Impact, Average Small Commercial 30

Differential Analysis of CWIP v. AFUDC  Base: AFUDC instead of CWIP  Change: CWIP  Differential = Change – Base AFUDC revenue requirement calculated by multiplying the Average Annual CWIP balance by the Weighted Average Cost of Capital CWIP revenue requirement calculated by multiplying the Average Annual CWIP balance by the Weighted Average Cost of Capital plus Taxes on CWIP Note: CWIP is included in the cost forecast but did not effect the 2017 results because the last CWIP payment is scheduled in

Expected Results 32

CWIP Cost Allocation per Year, As Reported by ITC and Prairie Wind 33

Pat Bourne Director - Transmission Policy Dan Jones, PE Lead Regulatory Engineer Dee Edmundson Engineer I