San Diego Community College District Borrego Solar Power Purchase Agreement Presented to The Board of Trustees Thursday, September 24, 2009 David Umstot, PE Vice Chancellor Facilities Management
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Borrego Solar Systems Overview Founded in 1980 Local company headquartered in El Cajon Leading provider of turnkey solar photovoltaic systems 3 US locations with 45 employees Commitment to excellence in solar design and construction
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What is a Power Purchase Agreement? Agreement to purchase power from a third party provider Term 20 years We pay only for what power is generated
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Solar PPA Structure
Turnkey Construction Operation and Maintenance
With a PPA you only pay for the solar energy you use. 4
What Does a PPA Include? Third party provides financing, design, permitting, construction, installation, maintenance and monitoring of system. Net metering is also used to bank power not consumed.
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How Much Power Will be Provided Through a PPA? 2.4 Megawatts (enough to power 650 homes) 26 percent of current peak electrical demand Potential to add more
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Cost PPA: $0.1274 per kWh SDG&E: $0.155 per kWh (blended rate)
Savings: $0.0276 per kWh 18 percent savings from current rates.
$110,400 saved annually Rates increase 4 percent per year. 7
City College LRC (80 kW)
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City College Theater Roof (20 kW)
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City College Harry West Gym (70 kW)
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Mesa College Surface Parking (764 kW)
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Mesa College Parking Structure (169 kW)
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Miramar College Parking (845 kW)
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Mid City Continuing Education (50 kW)
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West City Continuing Education (20 kW)
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West City New Surface Parking (195 kW)
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District Office Building (35 kW)
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District Office South Surface Parking (150 kW)
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Environmental Benefits By installing a solar system, we will be reducing global warming, mitigating natural disasters, and helping to preserve our planet. Over the first 20 years of production: Reduce Carbon Dioxide emissions by 111,747,343 pounds Equivalent to 176,169,816 vehicle miles not traveled Equivalent to planting 260,817 mature trees Conserve 159,751 barrels of oil Reduce Nitrogen Oxide emissions by 28,501 pounds Reduce Nitrogen and Sulfur Oxide emissions by 31,351 pounds
District retains renewable energy credits.
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