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Lori Singleton Manager, Sustainability Initiatives and Technologies September 15, 2010

SRP’s Sustainability Initiatives and Programs. Lori Singleton Manager, Sustainability Initiatives and Technologies September 15, 2010. Who is SRP?. Established in 1903 105 year steward of the environment Largest water supplier to Valley Third largest public power utility in the Nation

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Lori Singleton Manager, Sustainability Initiatives and Technologies September 15, 2010

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  1. SRP’s Sustainability Initiatives and Programs Lori Singleton Manager, Sustainability Initiatives and Technologies September 15, 2010

  2. Who is SRP? • Established in 1903 • 105 year steward of the environment • Largest water supplier to Valley • Third largest public power utility in the Nation • 935,000 electric customers

  3. Sustainable Portfolio Overview • Established by SRP Board • 2001 – Allocated $29 million; 4 year renewable program • 2004 – Established sustainable portfolio (includes: renewables and energy efficiency measures) with target of 2% of retail sales by 2010 • 2006 – Adopted new target of 15% of retail sales by 2025

  4. Sustainable Portfolio Mix Fiscal Year 2010 All numbers listed are approximate and have not been finalized Total 7.4% of Retail Sales

  5. Renewable Energy Resources Hydrogeneration Low Impact Hydro Geothermal Solar Wind Landfill Gas

  6. EarthWise™ Customer Solar Incentive Programs

  7. Solar Electric Application Submittals

  8. Solar Electric Installations

  9. Solar Program Expenditures

  10. Average Cost for Residential Solar Electric Systems

  11. Residential Solar Incentives • Solar electric • $2.15 per watt, 5 kW or less • Interconnection required • Incentive provided to customer in exchange for green tags / credits • 1,835 systems installed • 678 systems pending • 13.4 MW installed and pending • Solar water heating • $0.50 per kWh energy savings rating • 2,746 systems installed • 479 systems pending

  12. Typical Residential Cost Solar Electric System Solar Water Heating System * Arizona State Tax Credit: 25%, $1,000 cap * Federal Tax Credit: 30%, no cap for solar electric, $2,000 cap for solar water heating

  13. Commercial Solar Energy Program • Incentives paid to customers based on actual energy generation ($ / kWh) versus one-time payment • Solar electric • $2.00 per watt up-front incentive up to 30 kW • $0.147 per kWh for 20 years up to 300 kW • 97 systems installed / 64 systems pending • 13.2 MW installed and pending • Solar water heating • $0.50 per kWh up-front incentive up to $100,000 • $0.08 per kWh incentive for 20 years over $100,000 • 21 systems installed / 33 systems pending • Solar pool heating • $0.25 per kWh up-front incentive up to $100,000 • 19 systems installed / 7 systems pending

  14. Typical Commercial Cost Small Solar Electric System (One Time Incentive) Large Solar Electric System (Performance Based Incentive) * Charts do not include further savings through accelerated depreciation

  15. Typical Commercial Cost Small Water Heating System (One Time Incentive) Large Water Heating System (Performance Based Incentive) * Charts do not include further savings through accelerated depreciation

  16. Small Commercial Customer Systems • Optima • 8 kW system • Body Sculpting Center • 29 kW system • Integrity Building Corp. • 19 kW system • CDC Pools • 9.2 kW system

  17. Gatorade • Located on Gatorade / PepsiCo Distribution Center in Tolleson • Solar electric on distribution center: • 500 kW system contains 2,448 solar panels. Spans 68,000 sq ft • Estimated CO2reductions of approximately 400 metric tons per year • Solar water heating for manufacturing: • Uses sun's light to heat water used in manufacturing process for Gatorade products • 110 kWTH system contains 84 solar panels. Spans 9,600 sq ft

  18. Other Solar Initiatives

  19. Community Solar • 20MW facility to be built in 2011 (Iberdrola) • Energy sold to customers • 18 MW for school districts • $0.09 per kWh • Allocated among interested schools • 2 MW for Residential customers • 1 – 5 kW size options • Price to be determined

  20. EarthWise™ Energy Desert Botanical Gardens • EarthWise Energy™ allows customers to fund solar energy projects in the community • $3 per month • 4,978 residential customers • 81 business customers • New projects: • Liberty Wildlife • Sunshine AcresChildren’s Home Nina Mason Pulliam Rio Salado Audubon Education Center The Phoenix Zoo

  21. Solar for Schools • Grant program to complete installation and ten year maintenance of solar PV systems on Valley schools • Educational materials and educator training related to solar energy • Allows students to monitor energy output and use data for “real-world” math learning and application • 12 schools in Phoenix Metro and 2 schools in Northern Arizona have been awarded 10 kW systems • Projects to be completed by theend of 2010

  22. Tessera Solar / Stirling Energy Systems • Tessera Solar, Independent Global Power Producer, exclusively responsible for the worldwide deployment of the SunCatcher™ Solar Dish • Stirling Energy Systems, Scottsdale-based company, formed in 1996, manufacturer of SunCatcher™ Solar Dish Maricopa Solar Plant

  23. Tessera Solar / Stirling Energy Systems • 1.5 MW Plant (Maricopa Solar) consists of 60 SunCatcher™ Solar Dishes • 38 ft tall, 40 ft wide, 25 kW, 40 mirrors • Dish concentrator tracks, collects and focuses the sun’s rays to produce heat • Stirling Engine converts thermal energy to electricity Maricopa Solar Plant

  24. Maricopa Solar Plant • Dedication and ribbon cutting ceremony on January 22, 2010 • Project provides hands-on access to performance of the technology, grid integration • Local company, economic development, green jobs • Low water use (fraction of acre ft / year) • Project helps establish Arizonaas a solar energy leader Maricopa Solar Plant Ribbon Cutting & Dedication

  25. DMB Solar Demonstration Park • Partner with DMB on 40 − 50 acre solar technology demonstration park • DMB would own site • Solar companies would lease location • SRP would purchase energy and RECs • Targeting 3 − 4 projects, 1 MW each • Select new solar technologies past R&D stage, but not yet demonstrated at MW scale in US • Discussions with numerous solar companies

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