Top Ten Utility Green Pricing Programs

December 2005

Rank	Utility	Resources Used	Sales (kWh/year)	Sales (Avg. MW^a)
Green Power Program Renewable Energy Sales (as of December 2005)
1	Austin Energy	Wind, landfill gas	435,140,739	49.7
2	Portland General Electric^b	Existing geothermal and hydro, wind	339,577,170	38.8
3	PacifiCorp^cd	Wind, biomass, solar	234,163,591	26.7
4	Florida Power & Light	Biomass, wind, solar	224,574,530	25.6
5	Sacramento Municipal Utility District^e	Wind, landfill gas, small hydro, solar	195,081,504	22.3
6	Xcel Energy^ef	Wind	147,674,000	16.9
7	National Grid^ghi	Biomass, wind, small hydro, solar	127,872,457	14.6
8	Basin Electric Power Cooperative	Wind	113,957,000	13.0
9	Puget Sound Energy	Wind, solar, biogas	71,341,000	8.1
10	OG&E Electric Services	Wind	63,591,526	7.3
Source: NREL Notes: ^a An "average megawatt" (aMW) is a measure of continuous capacity equivalent (i.e., operating at a 100% capacity factor). ^b Some products marketed in partnership with Green Mountain Energy Company. ^c Includes Pacific Power and Utah Power. ^d Some Oregon products marketed in partnership with 3 Phases Energy Services. ^e Product is Green-e certified (www.green-e.org). For Xcel Energy, only the Public Service Company of Colorado product is Green-e certified. ^f Includes Northern States Power, Public Service Company of Colorado, and Southwestern Public Service. ^g Includes Niagara Mohawk, Massachusetts Electric, Narragansett Electric, and Nantucket Electric. ^h Marketed in partnership with Community Energy, EnviroGen, Green Mountain Energy Company, Mass Energy, People's Power & Light, and Sterling Planet. ⁱ Some products are certified by Green-e (www.green-e.org) or Environmental Resources Trust (http://www.ert.net).

Rank	Utility	Program Name(s)	Participants
Total Number of Customer Participants (as of December 2005)
1	Xcel Energy^a	WindSource^b Renewable Energy Trust	49,354
2	PacifiCorp^cd	Blue Sky Block Blue Sky Usage Blue Sky Habitat	42,269
3	Portland General Electric^e	Clean Wind Green Source Healthy Habitat	40,570
4	Sacramento Municipal Utility District	Greenergy^b	31,229
5	Los Angeles Department of Water & Power	Green Power for a Green L.A.	24,380
6	Florida Power and Light^f	Sunshine Energy	23,066
7	PECO^g	PECO WIND	22,164
8	National Grid^hi	GreenUp^j	20,986
9	Puget Sound Energy	Green Power Program	15,500
10	We Energies	Energy for Tomorrow^b	12,458
10	Alliant Energy^k	Second Nature^b	12,426
Source: NREL Notes: ^a Includes Northern States Power, Public Service Company of Colorado, and Southwestern Public Service. ^b Product is Green-e certified (www.green-e.org). For Xcel Energy, only the Public Service Company of Colorado product is Green-e certified. For Alliant Energy, Iowa and Minnesota products are Green-e certified. ^c Includes Pacific Power and Utah Power. ^d Some Oregon products marketed in partnership with 3 Phases Energy Services. ^e Some products marketed in partnership with Green Mountain Energy Company. ^f Marketed in partnership with Green Mountain Energy Company. ^g Marketed in partnership with Community Energy, Inc. ^h Includes Niagara Mohawk, Massachusetts Electric, Narragansett Electric, and Nantucket Electric. ⁱ Marketed in partnership with Community Energy, EnviroGen, Green Mountain Energy Company, Mass Energy, People's Power & Light, and Sterling Planet. ^j Some products are certified by Green-e (www.green-e.org) or Environmental Resources Trust (www.ert.net). ^k Includes Interstate Power and Light and Wisconsin Power and Light.

Rank	Utility	Participation Rate	Program Name(s)	Start Date
Customer Participation Rate (as of December 2005)
1	City of Palo Alto Utilities^a	13.6%	Palo Alto Green^b	2003
2	Lenox Municipal Utilities^c	12.6%	Green City Energy	2003
3	Montezuma Municipal Light and Power^c	6.3%	Green City Energy	2003
4	Holy Cross Energy	6.0%	Wind Power Pioneer Local Renewable Energy Pool	1998 2002
5	Sacramento Municipal Utility District	5.5%	Greenergy^b	1997
6	Portland General Electric^d	5.3%	Clean Wind Green Source Healthy Habitat	2002
7	City of Fairbank^c	4.9%	Green City Energy	2003
8	Silicon Valley Power^a	4.8%	Santa Clara Green Power	2004
9	Moorhead Public Service	4.7%	Capture the Wind	1998
10	Central Electric Cooperative^e	4.6%	Green Power	1999
Source: NREL Notes: ^a Marketed in partnership with 3 Phases Energy Services ^b Product is Green-e certified (www.green-e.org). ^c Program offered in association with the Iowa Association of Municipal Utilities. ^d Some products marketed in partnership with Green Mountain Energy Company. ^e Power supplied by PNGC Power.

Rank	Utility	Resources Used	Premium (¢/kWh)
Price Premium Charged for New, Customer-Driven Renewable Power^a (as of December 2005)
1	Xcel Energy^bc	Wind	-0.67
2	Edmond Electric^bd	Wind	-0.45
3	OG&E Electric Services^b	Wind	-0.25
4	Avista Utilities	Wind	0.33
5	Western Farmers Electric Cooperative	Wind	0.50
6	Austin Energy^b	Wind, landfill gas	0.70
6	Clallam County Public Utility District^b	Landfill gas	0.70
8	PacifiCorp^e	Wind, biomass, solar	0.78
9	Wabash Valley Power Association^f	Landfill gas	0.90
10	Eugene Water and Electric Board^b	Wind	0.91
Source: NREL Notes: ^a Includes only programs that have installed or announced firm plans to install or purchase power from 100% new renewable resources. ^b Premium is variable; customers in these programs are exempt or otherwise protected from changes in utility fuel charges. ^c Public Service Company of Colorado only. Product is Green-e certified (www.green-e.org). ^d Power supplied by Oklahoma Municipal Power Authority. ^e Pacific Power Blue Sky Usage product; only available in Oregon. Product marketed in partnership with 3 Phases Energy Services. ^f The premium charged by participating member distribution utilities varies from 0.9¢/kWh to 1.0¢/kWh.

For More Information -

Online Report: Utility Green Pricing Programs: What Defines Success? (PDF Report: 1.1 MB) NREL/TP-620-29831, August 2001.