A EPA

| GREEN

* POWER

PARTNERSHIP

Top 10 Federal Government Partner List (as of October 8,2008)

The Top 10 Federal Government Partner List represents the largest purchasers
among federal government organizations within the Green Power Partnership,
The combined green power purchases of these organizations amounts to more
than 1.6 billion kilowatt-hours of green power annually, which is the equivalent,
amount of electricity needed to power more than 157,000 average American
homes each year.

Annual Green
Power Usage
(kWh)

GP % of

Total
Electricity

Use

Green Power
Resources

Providers

1. U.S. Air Force

899,143,000

9%

Biogas, Biomass,
Geothermal, Solar,
Wind

SDegrees, Basin Electric Power Cooperative,
Bonneville Power Administration, Colorado
Springs Utilities, Georgia Power, Minnkota Power
Cooperative, Oklahoma Gas & Electric, Rocky
Mountain Generation Cooperative, Sterling
Planet, TransAlta Energy Marketing

2. U.S. Environmental Protection Agency

285,000,000

100%

Biogas, Biomass,
Geothermal, Wind

Various

3. U.S. Department of Energy

157,964,000

3%

Biogas, Biomass,
Geothermal, Small-
hydro, Wind

Calpine, ConEdison Solutions, Mainstay Energy,
Other, Pacificorp, Sterling Planet

4. U.S. Department of Veterans Affairs

110,000,000

4%

Biomass

Sterling Planet

5. U.S. General Services Administration / Region 2

78,930,000

34%

Biogas, Wind

ConEdison Solutions, Constellation NewEnergy,
PEPCO Energy Services

6. U.S. Army / Fort Lewis

48,000,000

20%

Biogas

SDegrees

7. U.S. Army / Fort Carson

40,000,000

29%

Biomass, Wind

Sterling Planet

8. U.S. General Services Administration / Region 7

31,700,000

24%

Various

Gexa Energy, Reliant Energy

9. U.S. National Park Service / Statue of Liberty NM and Ellis Island

9,414,000

100%

Wind

PEPCO Energy Services

10. U.S. Internal Revenue Service

7,500,000

3%

Biomass

Sterling Planet

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