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Tucson Electric Power Environmental Portfolio Standard Program Summary - PowerPoint PPT Presentation


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Tucson Electric Power Environmental Portfolio Standard Program Summary. TEP EPS Historic Performance:. TEP EPS Historic Solar Production by Source Type:. 2003 Annual Solar Energy Production: Type: Installed Capacity Annual Energy Energy %

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TEP EPS Historic Solar Production by Source Type:

2003 Annual Solar Energy Production:

Type: Installed Capacity Annual Energy Energy %

SunShare Systems 127 kWDCp 128 MWh 2.25%

TEP Solar Partnering 43 kWDCp 70 MWh 1.23%

TEP Customer Sited 34 kWDCp 57 MWh 1.00%

TEP Utility Scale 4,102 kWDCp 5,440 MWh 95.52%

Total Solar Generation 4,306 kWDCp 5,695 MWh 100.00%

tep eps financing attributes
TEP EPS Financing Attributes:
  • Utility Scale PV Financial Opportunities
    • Up Front Financing matches schedule of incremental building blocks.
    • Minimum funding level of at least $5 M per year to achieve minimum cost scenarios.
    • No finance charges for high capital cost, rapidly declining cost electricity generation technology taking advantage of minimum module size available with PV.
    • Leverage of 10% of initial cost through Investment Tax Credits
    • Possible additional 18% leverage through Production Tax Credits
    • Double declining balance accelerated depreciation leverage
    • No loss of revenue from customer self generation; instead
  • Energy revenue from sale of solar energy is leveraged through investing in future PV at lower per unit cost as PV prices decline over time.
  • All energy consumers benefit in the long term.
eps future directions
EPS Future Directions:
  • 2005:
    • Customer Solar expands to 600 kWDC, SGSSS expands to 5.4 MWDC.
    • Continue wind survey data monitoring and analysis for all future years.
  • 2006:
    • Customer Solar expands to 800 kWDC, no expansion at SGSSS.
    • Expand landfill capacity to 15 MW.
  • 2007:
    • Customer Solar expands to 1,200 kWDC, SGSSS expands to 6,400 kWDC.
  • 2008:
    • Customer Solar expands to 1,600 kWDC, SGSSS expands to 7,500 kWDC.
  • 2009:
    • Customer Solar expands to 2,000 kWDC, SGSSS expands to 8,600 kWDC – final size.
  • 2010:
    • Customer Solar expands to 2,500 kWDC.
    • Initial 5 MW wind development startup
  • 2011:
    • Customer Solar expands to 3,600 kWDC.
    • Second phase 5 MW wind development startup
  • 2012:
    • Customer Solar expands to 5,000 kWDC.
    • Final phase 5 MW wind development startup
solar future improvements
Solar Future Improvements:
  • Reduce Module costs
    • Thin Film Technology Development and Reliability Improvements.
    • Better efficiencies of c-si cells through new treatment and coating processes.
    • Increased annual PV module production through investment in automation.
    • Development of low cost PV grade silicon stock.
    • Development of lower cost alternate packaging materials.
    • Experience.
  • Reduce Balance of System Costs
    • Continue inverter cost reductions to or below $0.20 per Watt AC.
    • Integrated module, support and electrical design.
    • Development of USSPV size PV modules (750 W DC) – can reduce BOS costs by 33%.
  • Reduce Transaction Costs
    • Larger PV system size.
    • Sited with other utility assets to share cost of common functions.
    • Coupled with optimally sized energy storage (SMES or CAES).
    • Reduced industry overhead as experience is gained with the technology.
    • Improve system performance, reliability and longevity.
  • Reductions in all three cost factors must be achieved in a sustainable manner through balanced market growth.
tep solar accomplishments
TEP Solar Accomplishments:
  • Implementation of a Successful Customer Focused PV Support Program
  • Inverter Interaction with the Electric Grid as it Affects Reliability
    • IEEE-929 qualification conservative trip points
    • Grid event experience
    • RMR generation voltage support
    • NREL, Sandia and IEEE coordination
  • PV System Cost Reductions & Performance Improvements
  • Intermittent Renewable Resource Forecasting
  • Evaluation of Capacity Value of Intermittent Renewables
  • Developing a Library of Standardized PV System Data
    • Large Fixed Plane and with APS, Large Tracking Array PV Annual Energy Production Performance.
    • Evaluation of the annual energy production performance of a multitude of PV Module Technologies.
    • Evaluation of the performance of a wide Variety of Different Inverter Topologies and Manufacturers.
    • Initial and Operating Cost Data for a wide range of PV systems.
  • Identification and Resolution of Arizona Specific PV System Issues