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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

Team Mulberry

Andrew Smith, Joseph Entler, Bill Miller


Project proposal overview
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


Location specifics
Location Specifics

  • Phoenix, Arizona

  • Coordinates

    • 33 degrees 26’ 03 N

    • 112 degrees 00’ 42 W

  • Largest Airport in Southwest

    • 9th largest in United States


Weather
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



Solar data
Solar Data

  • Direct Nominal- Annual

    • 2518.6 kWh/m2

  • Global Horizontal- Annual

    • 2117.0 kWh/m2


Pv technology sunpower e20 series
PV Technology (SunPower E20 Series)

  • SunPower SPR-435NE-WHT-D

  • 21.06% Efficiency

  • 1 x 2.067 meters

  • Roughly 392 strings of 6 panels


Inverter technology satcon equinox
Inverter Technology (Satcon Equinox)

  • Satcon Technology Corporation

  • 2 x EQX0500US480T 480V [CEC 2012]


Environmental considerations
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


Long term goals
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


Building specifics
Building Specifics

  • Roof of Airport Hangers/Terminals

  • Horizontal plane

  • Little to no shade

  • Large area to build on (Est. 20,000 m2)


Array details
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


System cost
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


Life cycle analysis
Life Cycle Analysis

  • $556,199.51 NPV/LCS at year 20


Payback
Payback

  • Array #1

    • $4,239,287.29

    • 5.5 years

  • Array 2-10

    • Payback would dramatically decrease with added arrays


Financial overview
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)


Conclusion
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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