1. icfi.com © 2006 ICF International. All rights reserved. Wyoming Collector and Transmission System Project – Status Report Presented to: Wyoming Infrastructure Authority Board of Directors November 10, 2009

2. icfi.com 2 Contents Background Current Status Going Forward

3. icfi.com 3 Background

4. icfi.com 4 Renewable Energy Development State Renewables Portfolio Standard (RPS) –California 33% by 2020 –Potential National RPS Production and Investment Tax Credits GHG Emission Reduction Legislation

5. icfi.com 5 Wyoming Proposed Transmission Lines 7 extra-high voltage Issues: impact, reliability, cost, and spacing of lines Spacing affects BLM ROW application processing

6. icfi.com 6 Transmission Line Separation WIA Board of Directors funds independent study to address issues Published August 2009

7. icfi.com 7 WGA and DOE - Western Renewable Energy Zones (WREZ) WREZ Phase I Report Published June 2009 Includes Hub Map of Renewable Resource Potential

8. icfi.com 8 Western Area Power Administration and the ARRA TIP Purpose: “…constructing, financing, facilitating or studying construction of new or upgraded transmission facilities to deliver or facilitate delivery of renewable resources… Applications submitted April 2009

9. icfi.com 9 Wyoming Wind Collector and Transmission Task Force Develop a coordinated, staged, conceptual plan for a collector system Accommodate the interstate transmission lines and corridors required to collect and export these new resources

10. icfi.com 10 Current Status

11. icfi.com 11 Current Status WIA contracted with ICF to develop a conceptual design of a collector system One meeting and several conference calls held to date Scope of Work is complete and ICF began work in October

12. icfi.com 12 Scope of Work Tasks 1. Technical Analysis* 1.1: Develop Analysis Scenarios* 1.2: Perform Reliability Analyses* 1.3: Update Energy Corridor Map 1.4: Estimate Costs* 1.5: Summarize the Collector System Design Alternatives* 2. Commercial Structure 3. Administrative/Outreach * Funded subtasks Start October 2009 Task 1 Technical Analysis Task 2 Commercial Analysis Task 3 Administrative Support Collector System Design Alternatives

13. icfi.com 13 Current Effort – Subtasks 1.1 and 1.2 1.1 Develop Analysis Scenarios ( in progress ) Examining two wind resource development options Analyzing two collector system design options: radial vs. networked 1.2 Perform Reliability Analysis (start 11/09) Performing engineering feasibility analysis to ensure basic security and reliability of conceptual design for a 15GW system Developing a starting point for evaluating collector system design options from a cost basis

14. icfi.com 14 Going Forward

15. icfi.com 15 Going Forward 1.4 Estimate Cost of Collector Design Options Estimate cost of design options Rank options based on cost 1.5 Summary of Technical Analysis Identify collector system elements common to all scenarios Discuss possible integration with existing grid Discuss possible staged development of the collector system Describe radial and networked design options and discuss trade-offs

16. icfi.com 16 Going Forward (Cont’d.) Considerations Outside Scope of Work Integration of wind generation with other energy sources