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Photovoltaic Electricity- Green Development, Planning and Market Supply

Explore the nature of photovoltaic electricity, from building-based kilowatts to scalable megawatts. Learn about market supply, development, planning, and pricing strategies for this sustainable energy source. Discover how photovoltaic systems can enhance existing infrastructure and provide reliable electricity during peak demand times.

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Photovoltaic Electricity- Green Development, Planning and Market Supply

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  1. Photovoltaic Electricity- Green Development, Planning and Market Supply Mark Burger, Spire Solar ChicagoGreen Energy and Brown Fields:Energy and the EnvironmentInstitute for Regulatory Policy Studies Springfield, Illinois May 14, 2003

  2. Nature of Photovoltaic Electricity • Smaller and scalable • Building-based in kilowatts of capacity • Larger scale in single digit megawatts of capacity • Flexible • Ground-based • Dual-use • On building or part of building • Delivers electricity at high demand times

  3. Nature of Photovoltaic Electricity • Function of surface availability • Crystalline technology 8-10 watts capacity per square foot • Thin film 4-6 watts per square foot • Each 1,000 watts capacity will generate 1,400 to 1,600 kilowatt hours/year

  4. Nature of Photovoltaic Electricity • Market supply has not been scratched yet • <2 MW installed in Illinois at present • World production in 2002 ~ 500 MW capacity, ~ 1,600 MW installed total • 1.5% of IL power capacity, based on nameplate, <1% based on capacity factor • $3.5 Billion industry in 2002

  5. Nature of Photovoltaic Electricity • Development and Planning • Predictable and scalable development • Reduce costs • Institutional acceptance

  6. Interconnection Standards and Pricing • Interconnection primarily below substation level • Pricing reflect value of electricity • Day, summer and peak rates • Addressing small-scale costs of interconnection • Using existing standards of IEEE 929, and UL 1741 • Default standards to reduce metering costs for small (<25 kW) installations

  7. Siting, Zoning and Construction Issues • Low profile/footprint • Solar access • Aesthetics • Zoning minimal for <50-100 kW systems • Construction itself fast (<50 kW) • Installation 1-2 days • Wiring/interconnection 1-2 weeks

  8. Transmission Constraints • Actually can enhance T&D infrastructure • Reduces stress at peak times • Conserves existing equipment in high growth area • Distribution/Substation level • Little/no problem at 5-10% of capacity • Transmission level • Not much impact • Big (1 MW) system at summer peak ~ 900 kV

  9. Dispatchability • Very high Electric Load Carrying Capacity (ELCC) • Even higher day ahead predictability (using weather forecasting) • Can approach 100% with energy storage

  10. ELCC versus Total Energy Source: National Renewable Energy Lab

  11. Thank You! • Spire Solar Chicago • Chicago Center for Green Technology • 445 North Sacramento Boulevard • Chicago, Illinois 60612 • 773-638-8700 8701 fax • www.spiresolarchicago.com

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