Proprietary and Confidential Sterling Planet Connecticut’s Energy Future – 12 / 2 /2004 Renewable Energy Projects by Mel Jones President & CEO (404)

Proprietary and Confidential 2 First nationwide green power marketer with 100% green energy choice Founded January 2000 Sold over 1,034,713,682 kWh of green energy –Includes largest transaction in U.S. green energy history Buyer and seller of green energy certificates Customers in 45 states Utility partnership-based enterprise – 18 utilities to date –Most utility partnerships in green industry Infrastructure in place to grow rapidly Endorsed by environmental groups and Gov’t agencies Company Background and Introduction

Proprietary and Confidential 3 Sterling Planet’s Triple Bottom Line Sterling Planet’s 5 Year Goals Follow The Natural Step Philosophy We Believe In the Triple Bottom Line and Manage to It Sterling Planet is a Triple Bottom Line Company Its Environmental Goals over the Next Five Years Includes A 25 Times Goal of Environmental Footprint Over Its Current Environmental Footprint

Proprietary and Confidential 4 Utility partners, not competitors No need to switch electric utilities to buy green energy Flexibility to choose 50% - 100% green energy upgrade Strong focus on Utility Partnering (18 Total) Strong focus on Direct Sales to Businesses Extensive utility experience How We’re Different HARVARD UNIVERSITY

Proprietary and Confidential 5 Sterling Planet Local Utility Companies Solar Project (FL) I Electricity (Null Power) Contracts - PPA Sterling Planet Markets Attributes Solar Project (FL) I Solar Project (FL) I Solar Project (FL) I Solar Project (FL) I Wind Project (MN) I Attribute Contracts Biomass Project (GA) I Geothermal Project (CA) I Small Hydro Project (OR) I Wind Project (MN) I Wind Project (MN) I Biomass Project (GA) I Biomass Project (GA) I Biomass Project (GA) I Small Hydro Project (OR) I Geothermal Project (CA) II Geothermal Project (CA) I Local Utility Companies St. Columba J ohnson & Johnson Wind Project (MN) I Bi-Lateral Attribute Contracts Residential Customers Actual Commercial and Industrial Customers U.S. EPADuPont National Hydrogen Association National Conventions U.S. GSANike Cargill Dow Harvard U.S. IRS NYSERDA Alcoa Staples Pitney Bowes Coca Cola Leveraging EPA Green Partnership Program Connecting the Voluntary Market

Proprietary and Confidential 6 Our Renewable Energy Projects Under Development

Proprietary and Confidential 7 Our Renewable Energy Projects Under Contract

Proprietary and Confidential 8 RECs Markets Voluntary Markets  Customers voluntarily pay more for renewable energy  Participating in 10 utility renewable marketing programs in:  Florida, Massachusetts, New York, Rhode Island Mandated Markets  Sell RECs to utility to satisfy RPS  Manage RECs exchange among utilities  Provide RECs to government agencies Three Markets GHG Emissions Market Greenhouse Gas Emission Markets  Very Early in its Definitions and Rules  More Advanced in:  Europe  Japan

Proprietary and Confidential 9 How Much Can Business Customers Helps? In Comparison Sterling Planet’s 1,034,713,682 kWh Sales Represents: - Approximately 3.5 Times Austin Energy’s Renewable Annual kWh Sales - Approximately 10 Times PacifiCorp Renewable Annual kWh Sales - Approximately 25 Times TVA’s 40,491,000 Annual Renewable kWh Sales (Largest Southeastern Green Power Program – 7 th Largest in U.S.) Source – U.S. Department of Energy, December 2003

Proprietary and Confidential 10 Legend - % of Households Likely to Buy Green Energy 2 States with % of Households Over 35% (includes Hawaii) 11 States with % of Households Between 25-35% 12 States with % of Households Between 15-25% (includes Alaska) 16 States with % of Households Between 5-15% 9 States with % of Households Below 5% NH – 6.0 RI – 32.5 MA – 33.7 CT– 35.5 DE – 24.7 NJ – 34.0 MD – Source: Financial Times Energy, March 2001 FL – 21.6 VT – Target Marketing – Public Support for Green Energy

Proprietary and Confidential 11 State Legislative Status – Mandatory REC Market

Proprietary and Confidential 12 Solar $20 – 175 MWh Wind $2 – 40 MWh Small, low-impact hydro $2 – 4 MWh Geothermal $.50 – 4 MWh Biomass $.80 – 5 MWh Price Range per Tag Price Depends on Customer’s Need, Age of Plant and Region REC Market Prices By Source Type

Proprietary and Confidential 13 Sterling Planet Solar GeothermalBiomassSmall Hydro Wind Electricity Production Value of Technology (i.e. Baseload, Power Firmness, or Peaking Value) Good Average Family of Renewable Technologies Strengths & Weaknesses Infrastructure View of Technology (i.e. Interconnection Issues and Delivery (i.e. Use of T&D Assets) Siting and Location of Technology (i.e. Onsite Generation and Community Support) Cost View of Technology Environmental View of Technology ExcellentTerriblePoor Excellent GoodAverage U.S. Jobs and Local Economic Development View of Technology ExcellentPoor Good Nationwide Coverage Average Terrible ExcellentPoorExcellent Good AverageGood Excellent PoorGood Average PoorGood PoorGoodAverage Poor Average State of Connecticut’s Future Opportunities ExcellentPoorGoodPoor

Proprietary and Confidential 14 State and Federal Rules and Regulations Utility / ESCO … Well Designed Public Policy Our Green Power Partnership … Needs Another Partner

Proprietary and Confidential Sterling Planet Questions? by Mel Jones President & CEO (404)