Caltech Solar Phase I

Fall 2008

Technical

• Location—Holliston Parking Structure
• Capacity—199 KW AC 480 Volts
• Modules—852 Panels (72 cells per panel)
• Dimensions—8’ x 4’ x 2’ thick; weight: 25 Kg
• Output—280 Watts
• Panel Manufacturer—SunTech STP260-24/Vb
• Guaranteed Annual Power Production—321,372 KWH

Avoided Emissions

• CO2—527,050 lbs per year
• NOx—138 lbs per year
• Equivalent in autos removed from service—46 cars

Financials

• Cost of Installation—$1.9 M
• System Owner—Solar Power Partners (SPP)
• Engineer/Installer/Operator—EI Solutions
• Gas Company Rebate—$2.50 per KW installed
• Federal Tax Credit—30% of total cost less rebates
• Contract—15 years

Costs

• Caltech costs—$0.13 per KWH from SPP
• Rate escalates at—3.9% per year for 15 years