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Team Mulberry

Team Mulberry. Andrew Smith, Joseph Entler, Bill Miller . Project Proposal Overview. PV array at Phoenix International Airport Goal: Using savings from current array: Reduce grid consumption by adding arrays Minimize additional space required by additional arrays

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Team Mulberry

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  1. Team Mulberry Andrew Smith, Joseph Entler, Bill Miller

  2. Project Proposal Overview • PV array at Phoenix International Airport • Goal: Using savings from current array: • Reduce grid consumption by adding arrays • Minimize additional space required by additional arrays • Set a 20 year plan to install arrays • Have 100% of power consumption at airport come from solar arrays

  3. Location Specifics • Phoenix, Arizona • Coordinates • 33 degrees 26’ 03 N • 112 degrees 00’ 42 W • Largest Airport in Southwest • 9th largest in United States

  4. Weather • Near ideal climate for solar power • High Irradiance • 85% of Sunshine annually • 211 days of clear skies • Between 10 and 14.5 hours • Clear skies 86% of the time

  5. Weather (cont.)

  6. Solar Data • Direct Nominal- Annual • 2518.6 kWh/m2 • Global Horizontal- Annual • 2117.0 kWh/m2

  7. PV Technology (SunPower E20 Series) • SunPower SPR-435NE-WHT-D • 21.06% Efficiency • 1 x 2.067 meters • Roughly 392 strings of 6 panels

  8. Inverter Technology (Satcon Equinox) • Satcon Technology Corporation • 2 x EQX0500US480T 480V [CEC 2012]

  9. Environmental Considerations • Environmental Impact • Aircraft Emissions • 165,319 lbs CO2/A320 aircraft(full tank) • 2.09 x 108 lbs CO2/A320 aircraft (full tank) • 7.64 x 1010 lbs CO2/year (full tank) • Solar Offset Emissions • 1.2 lbs CO2 / kWh • No noticeable impacts with solar when we compare to alternatives

  10. Long Term Goals • Use the 4.7 million that will be saved from the 2008 array project to build additional arrays • Offset the emissions of the year round aircraft traffic for the future and improve air quality • Have a sustainable energy source that would lower annual energy costs • Provide a project that can be reproduced at similar locations

  11. Building Specifics • Roof of Airport Hangers/Terminals • Horizontal plane • Little to no shade • Large area to build on (Est. 20,000 m2)

  12. Array Details • Current Array • 5.4 MW high efficiency • 16,000 solar panels • Offsets 1000 cars per year of emissions • Array size to be repeated • 1.9 MW high efficiency • 4861.6 square meters • 2352 solar panels

  13. System Cost • Each Array project cost • 4,239,287.29 • Additional project will be based off of savings from previous projects • Increasing in size and payback each year

  14. Life Cycle Analysis • $556,199.51 NPV/LCS at year 20

  15. Payback • Array #1 • $4,239,287.29 • 5.5 years • Array 2-10 • Payback would dramatically decrease with added arrays

  16. Financial Overview • $4,239,287.29 • Analysis Period: 20 years • Discount Rate: 3% • Inflation rate: 2% • Nominal discount rate: 5.06% • Federal Income : 35%/year • State Income: 6.7%/year • Sales tax: 0% (Incentive) • Insurance: 0.5% • Incentives • $0.04/kWh (PTC) • 30% (Fed ITC) • 10% (State ITC) • $1.75/W (CBI) • $0.14/kWh (PTI)

  17. Conclusion • It makes financial and environmental sense to proceed with project • Payback is within a feasible period (5.5 years) • This project fits into the city’s priorities of increasing sustainable energy while savings money • Allows for savings to be spent on more array or sustainable projects

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