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Solar Projects and Energy Management

Solar Projects and Energy Management. Governing Board Study Session August 17, 2012. Michael E Finn. Solar Energy. Solar Electric Power. Only targeting APS powered campuses due to larger rebate offers Targeted campuses with the highest cost per kilowatt hour.

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Solar Projects and Energy Management

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  1. Solar Projects and Energy Management Governing Board Study Session August 17, 2012 Michael E Finn

  2. Solar Energy

  3. Solar Electric Power • Only targeting APS powered campuses due to larger rebate offers • Targeted campuses with the highest costper kilowatt hour. • Looked for campuses with significant amounts of shadow free southern exposure • Target kWDC is 1 mega watt and above • Three sites needed to generate full 1mWDC

  4. Sites Identified • Primary • Cheyenne Elementary • Santa Fe Elementary • Desert Harbor Elementary • Alternates • Zuni Hills Elementary • Coyote Hills Elementary

  5. Financial Overview • Zero cost to the District • Financial agreement that company would build the structures and the District would pay company for power based on agreed upon scaling of cost per kWh • Company would also be responsible for maintenance, design, engineering, and system operation • Term of agreement to be 20 years • District would have ability to purchase structures during the 20 year period

  6. Specifications • Estimated output of 2.47mWh per year • Cost per kWh $.09-$.11 with a 0.0% to 3.0% escalation (negotiable) • Estimated annual degradation factor of 0.5% • Estimated install cost of $5.6M • Estimated Federal Tax Credit of $1.69M • Estimate State Tax Credit up to $75K • Estimated Renewable Energy Credits of $.112kWh-$.123kWh or up to 40% of total project cost

  7. Next Steps • Would need to apply for rebates prior to the end of August, 2012 • DOES NOT commit District to anything • DOES allow the District to confirm rebate financials and begin procurement due diligence • Bring recommendations and proposal to Board no later than mid-October

  8. Energy Audit

  9. Energy Audit • In depth audit completed to determine energy efficiency of the entire District • EMC2 analysis did not address efficiencies • Recommendations made to make changes which would conserve energy and reduce operating expenses • T-12 fixtures (no longer make T-12 lamps) • Aged HVAC systems (Ironwood and Alta Loma) • Energy management systems • Cost Benefit Analysis performed and recommendations prioritized by cost metrics

  10. Energy Audit Funding • Zero cost to the District • Much like solar, the projects are funded by outside entity and payments are structured so that energy and operating savings pay for improvements • Limited “net savings” to District, however, operations are improved and carbon footprint reduced • Structured in way that Bond monies could be used to pay off projects to create net M&O savings

  11. Questions and Discussion

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