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New Mexico Renewable Energy Transmission Authority Santa Fe, NM – October 10, 2007

Transmission to Enable Renewables Development Jerry Vaninetti, VP Western Development Denver, Colorado Trans-Elect Development Company, LLC. New Mexico Renewable Energy Transmission Authority Santa Fe, NM – October 10, 2007. Background. Trans-Elect ( www.trans-elect.com ):

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New Mexico Renewable Energy Transmission Authority Santa Fe, NM – October 10, 2007

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  1. Transmission to Enable Renewables DevelopmentJerry Vaninetti, VP Western DevelopmentDenver, ColoradoTrans-Elect Development Company, LLC New Mexico Renewable Energy Transmission Authority Santa Fe, NM – October 10, 2007

  2. Background • Trans-Elect (www.trans-elect.com): • Independent Transmission company funded by AES • Sole focus is transmission • Path 15 developer: 83 mile $250 MM CA project • Public/private partnership with WAPA & PG&E • Largely focused on greenfield transmission projects to enable renewables • High Plains Express & Wyoming-Colorado Intertie • Jerry Vaninetti, VP Western Development • Interim Executive Director of Wyoming Infrastructure Authority • Former Power Project Developer

  3. National Transmission Grid

  4. Power Flow Capacities between WECC Control AreasMost paths are fully subscribed

  5. Western Wind Power Map

  6. Developable Solar

  7. RTO Coverage

  8. Sub-Regional Transmission Planning Groups NTAC NorthwestTransmissionAssessmentCommittee Columbia Grid NTTG WECC Western Electricity Coordinating Council Northern Tier Transmission Group Sierra CCPG ColoradoCoordinatedPlanningGroup CSPG CaliforniaSub-Regional Planaing Group SWAT Activities under WestConnect umbrella SouthwestAreaTransmission STEP SouthwestTransmissionExpansionPlanning

  9. Transmission Development • Transmission Line Costs (excluding substations) • $1.5 MM/mi for 500 kV for 1,500 MW = $1,000/kW • $1.0 MM/mi for 345 kV for ~750 MW = $1,333/kW • $0.75 MM/mi for 230 kV for ~400 MW = $1,870/kW • Transmission Development • Design, economics, permitting, routing & customers • 5-7 Year Timetable • Typical development costs: ~$10 million/project • Risky proposition not suited to traditional utilities • State Transmission Authorities • Seeding transmission development for economic and power generation development, focused on renewables

  10. Line Utilization Dictates Transmission Rates(Sold as Capacity, not Energy) WIND-ONLY LINE MULTI-RESOURCE LINE TRANSMISSION RATE ($/MWH) UTILIZATION LEVEL

  11. Disclaimer: this map is for study purposes only and is not meant to imply any specific project routing High Plains Express (HPX) Project Note: Conceptual Routing • Initial Feasibility Studies • Master Plan for Local Projects • WCI, EPTP & SunZia • Integrated AC System • Improved connections between states/systems • Improved Reliability • 2- 500 kV lines; 3,000 MW • 1,200 Miles • Renewables “firmed” with other resources • Power Imports/Exports • Stakeholder Process • Project Participants • Xcel, Tri-State, WAPA, PRPA, CSU, PNM, SRP & Trans-Elect • WIA, NM-RETA & CEDA? • http://www.rmao.com/wtpp/HPX_Studies.html

  12. Wind Resources & Installations(from NREL & Interwest Energy Alliance) Generation Capacity (MW) Developable*Installed (‘07) • Wyoming 257,650 319 • Colorado 73,130 1,066 • New Mexico 73,040 496 • Arizona 2,310 0 TOTALS 406,130 1,881 Note: Current WECC peak demand ~ 175,000 MW WECC RPS requirement in 2020 ~ 23,000 MW * Class 4 +; excludes unsuitable land; 5 MW per km2

  13. Geographic Diversity of Wind SE Wyoming 48% CAPACITY FACTOR New Mexico 40% Lamar, CO 43% Source: NREL wind performance projections

  14. New Mexico Transmission

  15. New Mexico Wind & Transmission Indian Reservation or Pueblo 26

  16. RETA Considerations • Congratulations – RETA Exists! • RETA’s Scope • Project Specific: Generator Leads • State Focus: Collector Systems & Integration • Regional: Linkage to Adjoining States • Complementary wind resources & improved reliability • 30% Energy Requirement • Transmission Development • Assistance to generators & local utilities? • Public/Private Partnerships? • Serving Native Load vs. Import/Export Markets • Cost Recovery: PRC rate based vs. merchant markets

  17. Recommended RMATS Projects TOT 3 Project $318 mm - 250 miles 750 MW - Coal & Wind Wind Wyoming-Colorado Intertie Example

  18. Questions? Jerry Vaninetti jvaninetti@trans-elect.com (303) 790-0513

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