By Barbara Kessler

In 2006, the U.S. Environmental Protection Agency challenged Fortune 500 companies to increase their use of green power and compete to be the biggest users in the year 2007. The results give a glimpse of the powerbrokers who are getting into green power – titans like Intel Corp., PepsiCo, IBM and Citi Corp — though they don’t answer the question of how much power consumption the companies been able to cut back on.

Still, the list shows that big business has greenlighted (we can’t resist that one) the switch to renewable sources. And that’s a big start, on a big scale. The EPA hintel.gifas calculated that the 53 Fortune 500 companies on this particular “green list” (led by Santa Clara, Calif.-based Intel) are now collectively purchasing more than six billion kilowatt-hours (kWh) of green power annually. That translates to avoided carbon dioxide emissions of more than 570 million gallons of gasoline each year, or, figured another way, the electricity savings could power nearly 670,000 average American homes annually.

Read on to see the Top 20 winners of the EPA’s Green Power Partnership challenge:

Company Green Power
(kilowatt–hours/year)

1 – Intel Corporation 1,300,000,000
2 – PepsiCo 1,105,045,154
3 – Wells Fargo & Company 550,000,000
4 – Whole Foods Mark 509,104,786
5 – The Pepsi Bottling Group, Inc. 457,851,838
6 – Johnson & Johnson 400,702,978
7 – Cisco Systems, Inc. 373,500,000
8 – Kohl’s Department Stores 236,017,000
9 – Starbucks 185,000,000
10 – DuPont Company 180,063,500
11 – Staples 121,800,000
12 – IBM Corporation 110,103,000
13 – Office Depot 99,529,000
14 – Safeway Inc. 90,000,000
15 – Sprint Nextel 87,600,000
16 – Lowe’s 86,000,000
17 – Nike, Inc. 79,820,000
18 – FedEx Kinko’s 76,312,000
19 – Citi 56,398,000
20 – Advanced Micro Devices (Austin Facilities) 53,518,623

* The EPA counted solar, wind, geothermal, biomass and biogas, as well as low-impact hydropower as renewable power sources. For more information on the EPA’s challenge visit their website.