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June 2010

WECC PCC Committee. June 2010. Black Forest Partners, LP. www.southline-pcrg.com. Agenda. Introductions Project Overview PCRG Strategy Questions. Introductions. Black Forest p rivate investment & development firm Western Renewable Transmission Development ( WRTD)

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June 2010

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  1. WECC PCC Committee June 2010 Black Forest Partners, LP www.southline-pcrg.com

  2. Agenda • Introductions • Project Overview • PCRG Strategy • Questions

  3. Introductions Black Forest • private investment & development firm Western Renewable Transmission Development (WRTD) • formed to access renewable resources The Southline Transmission Project • will enable development of renewable energy in the Desert Southwest in a faster, cheaper, greener way than alternatives

  4. Project Principles Principles: • Siting First: minimize environmental disruption, development costs and public opposition • Access the best resources • Connect both ends to load areas for bi-directional benefits • Get to the trading hub • Right commercial size, with room to grow • Partner with franchised utilities and find common solutions

  5. The Southline • UPGRADE • Western Saguaro-Apache • 130 miles • Direct, efficient means for solving Tucson bottleneck • Heart of joint study with TEP, SWTC, WAPA, and others • Helps regional utilities with reliability and load serving issues • NEW BUILD • Afton-Apache • 220 miles • More than 85% Federal and State land • Route parallels abandoned Railroad ROW, minimizing impact • Interconnects with existing 345 KV system • Excellent solar and geothermal resource • No forests, wilderness study areas, riparian zones, etc… Palo Verde CALIFORNIA Pinal West Pinal Central • COUNTERSCHEDULE & • PARTICIPATION • Saguaro – Palo Verde • 125 miles • 500 KV system into Phoenix Metro area & central trading hub • Potential to use existing capacity and participate in new expansion • Capacity from hub into California being expanded Saguaro/Tortolita Afton Hidalgo Columbus Apache South Existing Lines 500 kV 500 kV 345 kV 230kV 115kV Alt. route 345kV 230kV

  6. New Build • Route is 85%+ on BLM and State lands • Spares forest areas, riparian zones, wilderness study areas • Recycles rail lines and other ROWs Las Cruces New Mexico Arizona Primary Route

  7. Resource - Solar • Southline intersects four of the largest WREZ solar resource zones • Solar resource potential exceeds 25,000 MW 9,322 MW 6,149 MW 4,347 MW 6,623 MW Solar resource map: WestGov.org CONFIDENTIAL

  8. Resource - Geothermal • Accesses large ‘stranded’ Geothermal resources • Development stage projects in New Mexico and Southern AZ >250 ⁰C @ 7,500 meters • Animas Geothermal Resource Map: Google.org

  9. Resource--Wind • Southline represents a key link in delivering wind to Western loads • Most feasible route Source: NREL

  10. Overview of Benefits • Siting: Utilizes recycled Rights of Way (abandoned rail lines and upgrade-ready existing transmission lines); primarily State & BLM land for new build • Resources: transects some of the best solar and geothermal resources, and enables path for wind • Load Connecting: bi-directional flows and markets in four states • Trading hub terminus: Exploits new upgrades from Palo Verde to CA markets • Commercial: proposed size is economic, can be phased and staged with room for growth • Ratepayers: significantly improves reliability & load serving abilities while minimizing costs • Economic: create local permanent jobs; make region center for renewable industry • Flexible: generation, technology, sizing, timing • Advances renewables: enables timely development of utility scale projects with ecologically- and economically-sensitive facility siting

  11. Planning: Progress and Next Steps • May 13, 2010 – SATS Southline Study Group kickoff. www.southline-pcrg.com • June 3-4, 2010 – ACC BTA Workshop • June 9-11, 2010 – WECC PCC overview • Mid/End July – Preliminary Study Results & PCRG Review Meeting; begin sensitivities • Early August -- Review sensitivity studies. • Mid August -- Begin WECC comprehensive report • October -- Finalize WECC Comprehensive report • Oct 20-22 -- WECC PCC meeting • Sep or Nov -- Potential TEPPC presentation • 2008/2009 — internal siting & market studies • Fall 2009 — introduced Southline concept to WestConnect • New Build Afton-Apache • Sought guidance on upgrade options to Palo Verde • Dec 2009 — initial technical studies • Afton-Apache-Bicknell-PW-PV • Jan 2010 – initial study results presented to SATS • Feb/Mar 2010 – individual transmission owner meetings • Coordinate with other upgrade plans • Afton-Apache-Saguaro-PC-PW-PV • Apr 2010 – proposed SATS Southline Study Group (Project Coordination Review Group). • Open access. Information on WestConnect SATS website, invitations to SATS and SWAT members.

  12. SATS-Southline WECC PCRG Objective: Form WECC Project Coordination Review Group (PCRG) to find common denominators among study participants which optimize benefits in the most cost efficient and commercial way. Initial Goals: • Meet WECC PCR requirements • Provide open and transparent communication forum • Improve reliability and load serving capabilities • Collect & deliver renewables to loads and market hub • Reduce congestion • Integrate efforts • Minimize costs • Minimize timeline Open Access: announced to SATS, SWAT, ACC, WECC Participants: Tucson Electric, Southwest Transmission Co-op, Western, El Paso Electric and others

  13. Western Saguaro-Apache 115 kV Line Upgrade Source: SWTC BTA

  14. Integrates Utility Projects Afton

  15. Emerging Renewables Corridor Mead • Integrates regional utility projects into interstate corridor • SMRT and other projects should ensure that the California bottleneck is addressed Parker Devers Palo Verde Blythe Pinal West Pinal Central Midway Saguaro/ Tortolita Afton N. Gila Hidalgo Imperial Valley South Apache Columbus SMRT SE Valley Apache-Saguaro Southline

  16. Communications • Website • www.southline-pcrg.com • Email list • SATS • SWAT • WestConnect • www.westconnect.com

  17. WECC Project Coordination Review Guidelines 1. Take multiple project needs and plans into account, including identified utilities' and non-utilities' future needs, environmental and other stakeholder interests. The findings of the TEPPC, SPG, or other analyses reports may be used to satisfy these requirements; 2. Cooperate with others to look beyond specific end points of the sponsors' project to identify broader regional and subregional needs or opportunities; 3. Address the efficient use of transmission corridors (e.g., rights-of-ways, new projects, optimal line voltage, upgrades, etc.); 4. Identify and show how the project improves efficient use of, or impacts existing and planned resources of the region (e.g., benefits and impacts, transmission congestion mitigation) or addresses specific energy policy initiatives; 5. Cooperate with Project Coordination Review Group members in determining the benefits and impacts due to the project; 6. Identify transmission physical and operational constraints resulting from the project or that are removed by the project; 7. Coordinate project plans with and seek input from all interested members, TEPPC, Subregional Planning Groups, power pools, and region-wide planning group(s); 8. Coordinate project plans with and seek input from other stakeholders including utilities, independent power producers, environmental and land use groups, regulators, and other stakeholders that may have an interest; 9. Review the possibility of using the existing system, upgrades or reasonable alternatives to the project to meet the need (including non-transmission alternatives where appropriate); 10. Indicate that the sponsor’s evaluation of the project has taken into account costs and benefits of the project compared with reasonable alternatives; 11. Coordinate with potentially parallel or competing projects and consolidate projects where practicable. Source: WECC PCC PCR Policies

  18. Contact Information Black Forest Partners, LP Doug Patterson 31 Purchase Street, Ste. 3-1 Rye, NY 10580 doug@blackforestpartners.com 914 305 5511 William Kipp 275 Battery Street, 16th floor San Francisco, CA 94104 bill@blackforestpartners.com 415 735 0415 www.blackforestpartners.com Southline Project Coordination Review Group SATS Joint Study www.southline-pcrg.com Utility Systems Efficiencies, Inc (USE) 2108 Marchita Way Carmichael, CA 95608 www.useconsulting.com Fontana Energy Associates, LLC (FEA) 24 Arbuelo Way Los Altos, California 94022 www.fontanaenergy.com Stoel Rives, LLP 900 SW Fifth Avenue, Ste. 2600 Portland, OR 97204 www.stoel.com

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