1. Indiana’s “NowGen” 630 MW IGCC Plant On-line the Summer 2012 Chairman David Lott Hardy

2. Indiana Perspective  A traditionally regulated electric franchise state  A state with significant coal reserves and infrastructure  Indiana’s average retail electric rates were 12 th lowest in the country for 2008

3. IURC Perspective  The Commission’s mission is to assure that utilities and others use adequate planning and resources for the provision of safe and reliable utility services at a reasonable cost.  In fulfilling this aim we attempt to provide the necessary investment security to foster deployment of the long term infrastructure needed to cost effectively provide utility service for our citizenry.

4. Indiana statutes support the continued use of coal for electric generation  CPCN Law (IN Code 8-1-8.5 ) Showing of Need Reasonable Solution  Clean Coal Technology Certificate Law (IN Code 8-1-8.7) CWIP treatment  Generation and CCT Incentives Statute (IN Code 8-1-8.8) Suite of incentives available to encourage qualifying projects 4

5. IGCC Plant Approval, Docket # 43114 General Landscape 5  Indiana’s regulated coal baseload fleet 69% of Indiana’s regulated fleet is Coal Nearly 4,000 MW, more than 23%, of that fleet is over 40 yrs old Nearly 10,000 MW, about 60%, is over 30 yrs old  Plant replaces an existing 1940’s vintage coal fired plant Brownfield site Broad local support  Plant provides the potential to further home grown energy efforts  $450 million in Federal, State & Local tax incentives  Duke Indiana has a strong balance sheet  Duke Indiana has solid technical experience Includes Wabash River Station Gasification experience

6. Ultimate Findings (Order page 42-43)  Edwardsport IGCC is Clean Coal Technology Relative environmental benefits compared to conventional PC  90% Hg capture  30% less water use  50% less solid waste  Superior thermal efficiency  Initial step toward future carbon control requirements  Substantial federal, state and local tax benefits  Local economic benefits  Need for baseload capacity to meet customer needs Adequate consideration of alternatives Consistent with integrated resource plan Consistent with State’s generation expansion plan 6

7. Ratemaking and Incentives (Order pages 57-60) 7  CWIP Tracker provides for timely recovery of costs Financing costs, O&M, depreciation, property taxes, payroll costs, property insurance costs Tax credits amortized over plant life Tracker filed every 6 months  Denied incentive ROE request  Creative Deferred Income Tax (DIT) Treatment Indiana normally includes DIT in regulatory capital structure Allowed exclusion of non-IGCC DIT in determining return revenue requirement Treatment increases rate of return early in the life of the project  In contrast to the denied incentive ROE which increases rate of return over the life of the project  Targeted credit supportive treatment

8. Additional Order Terms 8  Carbon Capture and Sequestration study proposals required (Order page 47) Capture study underway Disposal study proposal before Commission  Ground work for oversight structure (Order page 36) Commission selected Black and Veatch to work with a newly created internal Project Oversight Team  Team attends on-site construction meetings  B&V effectively embedded with construction team

9. Would the decision be different today? (2 yrs later)  Initial cost approved estimate of $1.985 Billion has since been revised and approved to $2.35 Billion DIT treatment incentive not authorized for increment  Economic downturn  Wabash River Station NSR Outcome 265 MW of low cost generation closed  Gallagher Station NSR outcome pending 9