Before You Begin Please note that the following slides require your customization (indicated by carrots < >, or a box with dotted lines ) All agenda slides Slide 2 Slide 4 Slide 9 Slide 12 Slides 16, 17 (right-click on the chart to edit data) Slide 19 Slide 21 Slide 27 Must be printable; build by itself (no clicks required); no animation on pages that dealers will have to customize; indicate “customization required” with starburst?

<COMMUNITY EVENT NAME> DEALER LOGO <COMMUNITY EVENT NAME> September XX, 2008

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

Who is <Dealer Name>? DEALER LOGO Dealer Name Address City, State, Zip Phone www.weburl.com Over xx years experience installing solar systems Specialize in residential solar electric systems etc… Full service solar contractor (Contractor License #xxxxxx) xxxxxx of solar electric systems installed. Better Business Bureau member (other associations?) Other selling points Installation photo 1 Installation photo 2

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

Economic, Environmental and Social Benefits of Solar 1 Reduced carbon footprint & zero emissions — Be part of the solution! 4 Flexible financing options 2 Eliminate or significantly reduce your electricity bills 5 Over 30 years, a 5kW system will benefit the environment equivalent to planting 30 acres of trees or not driving 237,000 miles 3 Hedge against rising and volatile electricity prices

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

Established and Proven Technology Leaders SunPower Overview Over a quarter century of experience Over 500 large-scale systems on 4 continents Publicly traded (NASDAQ) with top-tier financing partners Over 85 patents and 25 years of R&D 4,000 Employees: all we do is solar World record cell efficiency Aesthetically pleasing all-black panels Over 300 dealers and growing rapidly worldwide 25-year warranty on performance 10-year warranty on product Established and Proven Technology Leaders

Vertical Integration Benefits Polysilicon Ingot Solar Cell Wafer Objective: We can ensure you that you will get product. We manufacture our own modules and have control. We own the supply chain. Don’t worry about it, we’ve got it handled. You don’t have to control these pieces, we’ll control it for you. There is value in SunPower’s involvement. Great warranty, monitoring, etc. Margarita’s “after-life” slide? Cust service, etc. Maximum Value High-efficiency modules provide more energy per square foot Leverage Energy Efficiency to maximize peak demand reductions Lowest Risk Worldwide, more than 450 SunPower solar power systems have been constructed or are under contract, rated in aggregate at more than 350 megawatts of peak capacity PV module supply direct from manufacturer; non-penetrating mounting systems SunPower provides O&M and retains ownership – incentive to build high-quality system Reduced Complexity ‘One Throat to Choke’ -- ‘On your staff but not your payroll’ From PV manufacturing to systems installation and maintenance Solar Panel DEALER LOGO Best in Class Dealer Network 9

SunPower Provides Solar Wherever You Need It Residential Commercial Power Plants Largest Largest Largest Residential Install Base in North America Commercial Install Base in North America Solar Power Plants in North America

World’s Most Efficient Solar Products Higher NPV at an equivalent PPA rate or an equivalent NPV at a higher rate. Up to 50% More Higher Efficiency = More Power (kW/ft2 )

Backed by a Name You Can Trust SunPower Authorized Dealers: Are commitment to quality and customer service, so that you get the highest return on your investment. Share SunPower's dedication to providing the most efficient solar systems to homeowners nationwide. Can offer residential customers SunPower's exclusive financing program, which can make solar energy an even more affordable investment. “Insert quote from happy customer” 12 12 12 12

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

How Solar Works

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

Local Utility Rates Electricity is priced by tier & billed by the Kilowatt hour (kWh) Usage above $42/month is in tiers 3 and above

What is time-of-use net metering? Electricity is credited or billed depending on time of day On-peak electric rates are 3+ times off-peak rate Enables system to be sized 35% smaller for same benefit E7 on-peak rates apply noon thru 6 PM, Monday – Friday. All other times are off-peak Summer: May – Oct Winter: Nov – Apr 17

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

State and Federal Incentives Detail State Incentive: California Solar Initiative (CSI) Choose between EPBB (one time rebate) versus PBI (rebate paid on production over 5 years) EPBB is currently at $1.90 per Watt Performance Based Incentive rebate pays 15% premium over EPBB Rebate drops based on the amount of kilowatts installed Federal Tax Credit 30% Disclaimer: Homebuyers should consult with their tax consultant, referencing the Federal Energy Policy Act of 2005, Section 1335. Tax laws are subject to change.

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

<COMMUNITY NAME> Community Program Goal: To bring down the cost of solar with community pricing Timeline: <COMMUNITY NAME> residents must sign a solar agreement between <Date 1> and <Date 2> (2 month period recommended) Community Program Tier Agreements signed by <Date 2> SunPower rebate (cents/watt) Savings (after rebate) on 5kW system Tier 1: 5 – 9 agreements signed $0.20 $1000 Tier 2: 10 – 19 agreements signed $0.30 $1500 Tier 3: 20 + agreements signed $0.40 $2000 21

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

SunPower Smart Financing® 25-year home equity loans that feature: Fixed interest rates that help you keep electricity costs flat for 25 years Lines of credit that are interest-only for the first ten years, minimizing your initial monthly payment Tax-deductible interest Unsecured Loans: 5-year loans with 15 year amortization schedules that are not dependent on home equity Highly competitive interest rates After tax payments, a SunPower system can cost as little as $100* a month. * Based on 3kW AC system in San Jose, CA

Financing Process Getting started: Easy as 1-2-3 Apply online today! Call 1.800.SUNPOWER and ask one of our financing experts to walk you through our financing options Complete a single loan application and submit it to your preferred financing partner The lender will notify you of your approval and help you select the best possible financing plan Apply online today! Visit financing.sunpowercorp.com To determine your personal financial benefits from a SunPower system visit: www.sunpowercorp.com/calculator

Who is <DEALER NAME> ? Benefits of Solar SunPower Overview How Solar Works Understanding your Utility Bill State and Federal Incentives <COMMUNITY NAME> Community Program Financing Q&A / Next Steps

What to Expect Step 1 We will conduct a site visit to assess your roof and electricity bills Step 2 We will provide you with a tailored system proposal Step 3 After you sign a contract we will handle all state rebates and permits that are required Step 4 Materials will be delivered to your home in a safe, secure storage unit Step 5 System is installed

Q&A / Next Steps Speak to any <dealer name> representative here, call <xxx-xxx-xxxx> or visit <www.weburl.com> Set-up a free site evaluation

Thank you for coming!

Appendix

Greater Power from the Same Roof Area 880,395 kWh SunPower 18.4% 644kW Conventional 12.8% 319kW 468,277 kWh Thin Film 4.4% 219kW 205,100 kWh 1,553 Conventional 208 W Panels 25” Fixed Tilt Racking System Thin Film Amorphous Integrated Roof Membrane 2,146 SunPower 300 Panels T10 Commercial Roof Tile

SunPower Produces More Power 1580 Average AC Energy Yield (KWHAC / KWPRATED) BP Mono C-SI Sanyo Hit-SI SunPower Mono-C-SI Solarworld Multi-C-SI Footnote: Department of Electrical and Computer Engineering, University of Cyprus & University of Stuttgart, 2006-2007 in Nicosia, Cyprus.

Solar Cell Efficiency Comparison SunPower Manufactures Highest Efficiency Cells 22.4% In Production Today Lower temperature coefficient enhances operation at high temperature Exceptional low-light performance (add stat) Extremely broad spectral response maximizes yearly energy harvest No Light Induced Degradation (LID) Guaranteed flash tested at +/- 3% 10 year workmanship warranty, in addition to 25 year production warranty = Average production efficiency Thin Film Conventional SunPower A-300 SunPower Gen 2