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Western Wind and Solar Integration Study Site Selection Analysis 5/14/2008

Western Wind and Solar Integration Study Site Selection Analysis 5/14/2008. Transmission Zones used in Site Selection. 2017 Load Analysis. “In Area” Sites. “High Capacity Factor” Sites. In Area Scenario. In Area Scenario. High Capacity Factor Scenario. High Capacity Factor Scenario.

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Western Wind and Solar Integration Study Site Selection Analysis 5/14/2008

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  1. Western Wind and Solar Integration Study Site Selection Analysis 5/14/2008

  2. Transmission Zones used in Site Selection

  3. 2017 Load Analysis

  4. “In Area” Sites

  5. “High Capacity Factor” Sites

  6. In Area Scenario

  7. In Area Scenario

  8. High Capacity Factor Scenario

  9. High Capacity Factor Scenario

  10. High Capacity Factor Scenario

  11. Summary Comments • Pre-Selected capacity represents existing and planned sites rounded up to nearest 30 MW. • Ignore “planned” sites in Scenario creation. • How much capacity can be reasonably exported (imported) at each area? • Assume constant energy between scenarios rather than constant number of plants: • Avg Wyoming C.F/Avg Arizona Plant = 49.1/32.0 = 1.53 • ~Roughly 2 MW of wind in Wyoming produces the same energy as 3 MW of wind in Arizona. • Initial Study Scenarios: Baseline (I.e. Pre-Selected Sites) • High Renewables: - In Area • Subsequent Scenarios: High Capacity Factor • “Constrained” High Capacity Factor

  12. Summary Comments • Transmission costs estimated at $1350/MW mile. • New Wind plant costs estimated at $1750/KW. • Therefore saving a MW of wind capacity would pay for roughly 1300 miles of transmission. Phoenix, AZ to central Wyoming is about 650 miles, so a MW of Wind capacity would pay for the cost of 2 MW of transmission.

  13. Summary Comments - Solar • How much existing Solar generation is there? • Can we ignore Solar in the Baseline? • Does existing Solar generation match up with CSP and PV site data?

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