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Colin W. Jack, PE Chief Operating Officer

Dixie Power & City of St. George SunSmart Project. Colin W. Jack, PE Chief Operating Officer. Dixie Power. Headquartered in Beryl Jct. & St. George, Utah 18,000 members in Southern UT & Northern AZ 114MW peak in summer, 420GWh/year All-requirements member of Deseret Power.

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Colin W. Jack, PE Chief Operating Officer

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  1. Dixie Power & City of St. George SunSmart Project Colin W. Jack, PEChief Operating Officer

  2. Dixie Power • Headquartered in Beryl Jct. & St. George, Utah • 18,000 members in Southern UT & Northern AZ • 114MW peak in summer, 420GWh/year • All-requirements member of Deseret Power

  3. Colin W Jack, PE 50 countries

  4. St. George, Utah • Southwestern Utah • Elevation: 2500 ft. • Sunshine 310 days / year • Average annual temperature: 61F • Average high in July: 102F; average low in January: 25F

  5. Customers Demand Solar Option • 2006 Dixie Power received on average a request per day regarding solar power options • 2006 Dixie Power adopted a net metering tariff to accommodate requests for solar installations • 2007 Dixie Power & St George City brain storm the idea of a large scale solar facility that could be sold to customers in lieu of individual roof top units • 2008 Dixie Power & St George City build SunSmart facility

  6. SunSmart characteristics • SunSmart can grow up to 15 acres, which would accommodate 2,000 kilowatts (“kW”) of solar panels. • Single axis tracking adjusted 4 times/year. • Residents can purchase shares in 0.5 or 1.0 kW increments; 1.0 kW of panels produces about 150 kilowatt-hours (“kWh”) per month. • (Typical residence uses 1,500 kWh per month.) • Central facility avoids maintenance hassles, community restrictions, and installation issues

  7. SunSmart – development • $1,000,000 direct materials & labor for 100kW • State Legislature extends 20% tax rebates to SunSmart • St. George City applied for Federal Stimulus • Purchased additional 150kW of solar panels • Total Cost Phase 1 + Phase 2 = • $1,320,000 ÷ 250kW = $5,280/kW • Dixie & St. George set subscription rate at $5,000/kW

  8. Major promotion • Hired high power (high $) PR firm to promote • Multimedia blitz: TV, radio, internet, newspapers • Governor of Utah inaugurated & cut ribbon

  9. Subscription rates • Of potential 45,000 customers: • 25 customers purchased 26.5kW in first year (2008) • 1 additional customer purchased 1kW in 2010

  10. SunSmart costs – total 48% Subsidized* • *Costs don’t include: • 15 acres land • A&G • Overheads • Tax free purchases

  11. SunSmart costs to consumer $ 4,000 net cost or $26.40/month* 150kWh/kW/moavg. output = 18¢ / kWh Cost / kWh for Dixie customer 5.35¢ / kWh 329% premium for solar *Terms: 5% for 20 year panel lifetime

  12. Maintenance Issues: • Monthly cleaning – or loss of production • Wind – unexpected north wind • Manufacturer’s defects – replaced all original panels under warranty

  13. SunSmart relative production

  14. Solar limitations • Power supplied limited to availability of sunlight Probable cloud blockages

  15. Solar’s contributions to peak load Solar output falls off daily just as load in St. George peaks.

  16. Summary • Power delivery to system does not match peak demand • Even with generous subsidies, solar power expensive • Solar power producing 20% equivalent hours • Low subscription rate for SunSmart • Visit: www.sgsunsmart.com or www.dixiepower.com

  17. Dixie Power - City of St. George SunSmart Project Solar Energy – the renewable optioncolinj@dixiepower.com

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