©2009 Suntech Power. All rights reserved.

Confidential: Do not distribute.

German-American Business Association“Cleantech Financing for the Future”

Kristina Peterson,

President, Gemini Solar Development Company

Vice President, Suntech America

November 10, 2009

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Suntech Overview

(

Focus on core expertise in PV module production; Cementing relationships with selected upstream and downstream partners

Solar Grade Polysilicon

Ingots and Wafers

Solar Cells

Solar Modules

Suntech’s Core Business

Distribution,System Integration

Milestones Founded — 2001, Wuxi, Jiangsu Province, China IPO Date — December 14, 2005 (NYSE: STP)

Founded — 2001, Wuxi, Jiangsu Province, China IPO Date — December 14, 2005 (NYSE: STP)

Products & Services

Photovoltaic cells, modules including BIPV products and system integration, and thin film PV products in the future

Target of 1GW PV cell production capacity by the end of 2008

Photovoltaic cells, modules including BIPV products and system integration, and thin film PV products in the future

Target of 1GW PV cell production capacity by the end of 2008

Market Capitalization

Market Capitalization — approx. $2 billion Free Float — 66%

Market Capitalization — approx. $2 billion Free Float — 66%

Market Leadership

#1 module producer and #3 PV cell producer in the world in 2008¹ #1 module producer and #3 PV cell producer in the world in 2008¹

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Suntech: Company Snapshot

Company • Suntech Power Holdings Co., Ltd.• $1.9 billion revenues in 2008

Products and Services• Silicon solar cells and modules• Building integrated and off-grid solar systems • Thin film solar products (from 2009)• Residential, commercial, and utility-scale solutions• #1 module producer, #3 cell producer• #1 in Spanish sales, #2 in Germany

People and Offices• 9,000+ employees • Global offices in China, Japan, Germany, Spain, UAE, Australia, North America, South

Korea, Switzerland • International management team

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Leading by Example

Suntech is a member of the Global Roundtable on Climate Change, the Climate Group, and the Copenhagen Climate Council

Our factories are certified to ISO 14001 – Environmental lifecycle management

Continual environmental performance improvement

Continual re-certification

Our new manufacturing facility and corporate headquarters are among the most environmentally friendly in the world

1 MW solar façade and roof system

100,000+ ft2 of offices over seven floors

Geothermal heating, conduit cooling ceiling

Natural light and ventilation

Intelligent lighting system

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Long-Term Industry Leader

International brand recognition for quality and reliability

Worldwide sales reach: #1 module supplier in Spain, #2 module supplier in Germay1

Unmatched manufacturing capacity

25-year module power output warranty enhances customer ROI

2008 Solar Energy Development Company of the Year

“Suntech will be a long term winner post the shake out in solar we expect to occur.”

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- Analyst Report, March 2009

(1) Company estimates, 2007

Levelized Cost of Electricity (LCOE)

LCOE analysis compares the total life cycle costs of generating energy across different technologies

LCOE shifts the industry focus away from upfront investment ($ / W) and towards lifetime cost/benefit of ownership ($ / kWh)

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LCOE = Total Lifetime Cost

Value of Lifetime Energy Production

Total Lifetime Cost generally includes: Initial investment (less any upfront rebates) Annual O&M expenses Land lease expenses

Value of Lifetime Energy Production varies based on: Location – latitude, irradiance, weather patterns, etc. System characteristics – module efficiency, mounting system design,

annual degradation, etc.

Compelling Levelized Cost of Energy

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Suntech LCOE Advantages

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Expanded Production Hoursvs. Thin Film

Compared to fixed-tilt systems, tracking systems produce energy later into the afternoon when electricity is most valuable

Reduced Land Use

Thin film PV systems, because of their low efficiency, require more land to generate the same amount of energy (MWh) as crystalline modules

Tilted single-axis tracking systems (e.g. the SunPower T20) require more land than flat tracking systems

kW h

Low EPC and O&M Costs

All modules are not created equal

Competitively priced Suntech modules offer exceptional value, reliability, and energy output while reducing overall EPC costs

Proprietary manufacturing techniques and quality control reduce maintenance costs

10 MW Power Plant Comparison (2010)

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1-Axis Tracker – 0 Degree Tilt 1-Axis Tracker – 20 Degree Tilt 30 Degree Fixed Tilt

Suntech SunPower First Solar

Assumes yearly average conditions: 237.9 W/m2 irradiance, 19.6° C, and 4.9 m/s wind speed

54 Acres22,700 MWh/year

LCOE Leader

60 Acres24,300 MWh/year

7% more energy, but at a significant capex premium

50 Acres18,900 MWh/year

16.7% less energy with only a small capex discount

Extensive US and Worldwide Experience

United States

China

Spain

United States

JapanSpain

United States

Japan

United States

Module Supply: Alamosa Solar Power Plant

One of the largest systems in the U.S.

Over 27,000 Suntech modules

Single–axis tracking system

Module Supply: Nellis Air Force Base14 MW – Outside Las Vegas, Nevada

Largest installation in Western Hemisphere

Suntech was a top module supplier

Supplies 30% of base’s electric needs

Case Study: Austin Energy 34.2MW DC Project

Austin Energy Goals

Austin Energy was looking for cost-effective, no risk solution to meet their Renewable Portfolio Standard goals

Austin Energy has no ownership or operation risk; purchases power from project over 25 year Power Purchase Agreement (PPA)

Austin contributes the land to project (25 year lease)

Why Suntech?

Competitive price

Track record

Superior solar PV technology and operating experience

Guaranteed module supply

Site Layout

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Webberville 34.2 MWp Solar Array

• Completion target date Dec. 31, 2010

• 130,000 Suntech modules

• Ground mounted 20o trackers

• ~90 Inverters

• 370 acres

Case Study: Austin Energy 34.2MW DC Project

Location Austin, Texas

Owner Gemini Solar Development Company (50% owned by Suntech, 50% owned by Renewable Ventures)

Developer Gemini Solar Development Company

Power Purchaser Austin Energy

Term 25 year PPA

Project Size (MW) 30 MW ac

Significance First large-scale PV project proposed in Texas

Module Supplier Suntech Power Holdings

Target Completion 2010

Project Cost US $210 million (estimate)

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Case Study: Austin Energy 34.2MW DC Project

March 5, 2009 - Suntech’s development joint venture, Gemini Solar Development Company, awarded contract to build, own and operate largest solar project in U.S. by Austin City Council, to sell power to Austin’s municipal electric utility, Austin Energy

August 13, 2009 – Austin Energy signs 25 year power purchase agreement with Gemini

Austin supplies 350+ acre site and all interconnection facilities to Gemini

Project to begin construction late 2009, placed in service by December 31, 2010

Will be largest solar power project in U.S. when complete, and fifth largest PV crystalline solar project in world

Part of Austin’s self-imposed Renewable Portfolio Standard to achieve 200MW solar by 2020

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Suntech Contact Information

Kristina Peterson

President, Gemini Solar Development Company and

Vice President, Project Finance and Business Development, Suntech America

71 Stevenson Street, 10th floor

San Francisco, CA 94105

Tel +1 415 268 8844

kpeterson@suntechamerica.com

www.suntech-power.com

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