Skip Navigation to main content U.S. Department of Energy Energy Efficiency and Renewable Energy
Green Power Network
About the GPNGreen Power MarketsBuying Green PowerOnsite Renewable EnergyCommunity Renewable EnergyInformation ResourcesFinancial OpportunitiesHome
Green Markets

Green Pricing
Top Ten Utility Green Power Programs

Green Power Marketing

Green Certificates

Carbon Offsets

Community Choice Aggregation

Green Pricing

Xcel Energy

February 2013 - On February 22, 2013, Clean Energy Collective broke ground on a 500-kilowatt (kW) community-owned solar array in Xcel Energy's Colorado service area. The array will service roughly 100 residential, commercial, and nonprofit customers. The project is a result of Xcel Energy's Solar Rewards Community program, which is a solar garden initiative bringing renewable energy to customers who are unable to put solar panels on their properties. The Solar Rewards Community program allows any Xcel customer to purchase solar panels in the array; the customer then receives credits directly on their electricity bill for the power produced. The program was made possible by the passing of Rep. Claire Levy's House Bill 10-1342.

News Article -
Boulder County to see groundbreaking on first community solar array

Contact: General Information, 800-646-0323

February 2011 - Colorado State University (CSU), located in Fort Collins, Colorado, has installed a 5.3 megawatt (MW) solar plant that is now producing electricity. The plant is owned and operated by Fotowatio Renewable Ventures and Xcel Energy is buying the renewable energy certificates. According to CSU, the purchase of the RECs helped offset construction costs. CSU will purchase the power from the plant under a fixed rate for the next 20 years.

News Release - One of the largest solar plants at a U.S. university now open on Foothills Campus

Additional Information (video) - Colorado State University Hosts One of Largest Solar Plants at a U.S. University

Contact: Emily Wilmsen, 970-491-2336

September 2010 - The U.S. Mint in Denver, a federal facility that produces coins, purchased enough wind to meet 100% of its electricity use. The facility will purchase nearly 13 million kilowatt-hours (kWh) annually through Xcel Energy's Windsource program.

Additional Information - Xcel Energy's Windsource to provide all electricity to U.S. Mint at Denver

Contact: Guillermo Hernandez, 303-405-4736

May 2010 - Using information provided by utilities, National Renewable Energy Laboratories (NREL) has released new "Top 10" rankings of utility programs for 2009 in the following categories: total sales of renewable energy to program participants, total number of customer participants, the percentage of customer participation, green power sales as a percentage of total utility retail electricity sales, and the lowest price premium charged for a green power program using new renewable resources.

Ranked by renewable energy sales (kWh/year), Austin Energy in Austin, Texas sold the largest amount of renewable energy in the nation through its voluntary green power program. Rounding out the top five are Portland General Electric (Oregon), PacifiCorp (Ore. and five other states), the Sacramento Municipal Utility District (Calif.), and Xcel Energy (Colo., Minn., Wis. and N. Mexico).

Utility green power sales in 2009 exceeded 6 billion kilowatt-hours (kWh), and they represent more than 5 percent of total electricity sales for some of the most popular programs. Wind energy represents approximately two-thirds of electricity generated for green energy programs nationwide.

News Release - NREL Highlights Utility Green Power Leaders

Additional Information - NREL Top 10 Utility Green Power Programs

Contact: Jenny Sumner, 303-275-4366

February 2010 - The Center for Resource Solutions (CRS) launched the Buy Clean Energy 2010 campaign, partnered with a Web site enabling users to research local utility green power programs and buy renewable energy certificates (RECs). The campaign is sponsored by Xcel Energy, Sterling Planet, EcoElectrons, and various supporting organizations. Sterling Planet is offering a 100% wind REC option priced at $5.00 per 1,000 kWh block. The campaign has set a goal of 1 billion kilowatt-hours of new purchases in 2010.

News Release - Buy Clean Energy 2010 Launched

Additional Information - Buy Clean Energy Campaign Web Site

Contact: Jeff Swenerton, 415-561-2119

October 2009 - Xcel Energy customers in Wisconsin can now elect to purchase renewable energy through its Windsource program. Under the program, customers committing to a one-year enrollment can purchase 100 kilowatt-hour (kWh) blocks of wind energy for an additional $1.15 monthly charge, or a rate premium of 1.5¢/kWh. The program will initially be sourced from wind farms in Minnesota, South Dakota and North Dakota.

Collectively, more than 70,000 residential and 1,000 business customers are participating in Xcel's Windsource program, which is also offered in the utility's service territories in Minnesota, Colorado and New Mexico.

News Release - Xcel Energy launches Windsource in Wisconsin

January 2009 - Xcel Energy has proposed a settlement with staff of the Colorado Public Utilities Commission (PUC) and others that would restructure its Windsource program to enable it to grow in Colorado and meet its program obligations. Windsource is the utility’s voluntary renewable energy program through which customers can opt to pay a premium above standard electricity rates to purchase wind energy equivalent to a portion or all of their electricity needs. If the settlement is approved by the Commission, the utility would provide a credit to Windsource customers in the form of lower Windsource rates in 2009 and purchase additional wind energy to meet past program obligations. If the proposal is approved, the Windsource premium would be $1.59 per 100-kilowatt-hours, or 1.59¢/kWh starting in February 2009, and then adjusted annually based on the cost of adding new supplies.

The proposed settlement would also allow Xcel to use its entire portfolio of renewable energy resources, including biomass and solar, to serve its Windsource customers and expand the program beyond its current capacity. To date, the program has been sourced from two relatively small wind farms in Colorado. All Windsource energy would continue to be Green-e certified, or receive an equivalent independent verification, and be acquired in addition to the renewable energy needed to satisfy the state’s renewable energy standard.

News Release - Xcel Energy files settlement to expand Colorado Windsource

News Article - Xcel eyes deal in wind probe

News Article - Judge considers Xcel Energy wind power settlement

August 2008 - Minnesota customers that are signed up for Xcel Energy’s Windsource voluntary renewable energy program found a pleasant surprise in their utility bills for July 2008. Windsource customers in the state actually paid less for wind energy than customers paid for fossil-fuel generated electricity. Windsource customers are exempted from paying a separate fuel cost (known as the energy cost adjustment) because wind energy does not use the fossil fuel paid for by the charge. When the fuel cost to conventional customers exceeds the Windsource premium, savings result for Windsource customers.

A similar situation occurred in Colorado in November 2005, when Xcel’s Colorado Windsource customers saved money relative to conventional energy costs. As a result of the savings, Xcel fully subscribed the Colorado Windsource program within weeks and established a waiting list for interested customers. In the Colorado situation, the effective price of wind power for Windsource customers remained below that of conventional power for six months, until April of 2006. The current savings for Minnesota customers, however, lasted only through July. For August, Windsource customers in Minnesota are again paying an effective premium, although that premium at 0.3¢/kWh is still one of the lowest in the U.S. About 10 other utility green pricing programs offer fixed-price green power products or otherwise exempt their green power customers from some or all fuel cost charges.

News Article - Xcel Wind Power Proved to Be a July Bargain

June 2008 - Wind and solar power will supply 100% of the energy needs for the 2008 Democratic and Republican National Conventions. Because Xcel Energy serves both the Denver and Minneapolis-Saint Paul areas, sites of the Democratic and Republican Conventions respectively, it will provide the renewable power for both events. The Republican and Democratic National Committees will purchase the estimated 3 million kWh that the conventions will use from Xcel's Windsource green pricing program.

The power for the national conventions will come primarily from Xcel Energy's Ponnequin Wind Facility near the Colorado-Wyoming border and from a wind farm on southwestern Minnesota's Buffalo Ridge. Additional power will come from a 10-kilowatt solar installation at the Pepsi Center in Denver, and from a 10-kilowatt solar installation at the High Bridge Generating Station in St. Paul, Minnesota.

To augment the renewable energy purchase for the Democratic Convention, convention organizers announced the Green Delegate Challenge offering recognition and rewards for the delegations with the highest percentage of members offsetting their carbon footprint. For example, any delegate who offsets the carbon emissions associated with his or her travel will receive a unique wearable "green item" for convention week. Through the convention organizers' partnership with NativeEnergy, delegates may participate in the challenge by obtaining carbon offsets from a number of U.S. clean energy projects.

News Release - Democratic and Republican National Conventions to Be Powered by Wind, Sun

Additional Information - Republican Green Fact Sheet (PDF 424 KB) Download Acrobat Reader

June 2008 - The Yampa Valley Electric Association (YVEA), a consumer-owned cooperative utility serving Northwest Colorado and a portion of Wyoming, has lowered the premium for its green pricing program participants, from $3 per 100 kWh block to 60¢ per 100 kWh block (0.6¢/kWh) over the standard rate. The new premium is one-fifth the previous amount. For an average household meeting 100% of their energy needs through the program, the reduction would reduce their annual green energy premium from about $290 to about $57.

YVEA supplies its program with renewable energy credits (RECs) purchased from Xcel Energy. A higher volume purchase of RECs enabled the lower negotiated wholesale price from Xcel. About 300 YVEA households and businesses currently participate in the program, or about 1.2% of their customers.

News Article - Business News And Notes: Another Way To Go Green

YVEA Contact: Jim Chappell, 970-871-2231

March 2006 - Recreational Equipment Inc. (REI), a national cooperative retailer of outdoor gear and apparel, announced that it will purchase 10 million kWh of green power, equivalent to 20% of the company's annual electricity usage. The purchase of wind, landfill gas and solar-generated electricity will provide 100% of the power for 17 of REI's 82 retail stores. REI has entered into renewable energy contracts with seven different utilities and marketers in nine locales, with some of the products being Green-e certified. In several cases, the purchases will reduce the company's exposure to fossil fuel surcharges. The purchases include the following stores and suppliers:

  • Brookfield, WI; We Energies; sources: wind, landfill gas and solar
  • Madison, WI; Alliant Energy/WP&L; sources: wind, landfill gas and solar
  • Eugene, OR; Eugene Water & Electric Board; source: wind
  • Denver, Englewood, Boulder, Grand Junction and Lakewood, CO; Xcel Energy; source: wind
  • Colorado Springs, CO; Community Energy Inc.; source: wind
  • Fort Collins, CO; Fort Collins Utilities; source: wind
  • Bloomington and Roseville, MN; Xcel Energy; source: wind
  • Dallas, Houston (two stores) and Plano, TX; Green Mountain Energy; source: wind
  • Pittsburgh, PA; Community Energy Inc.; source: wind

News Release - REI Steps Up to 20 Percent Green Power

REI Contact: Kevin Hagen, (253) 437-7312

November 2005 - The City of Boulder, Colorado announced that it exceeded its goals for a recent campaign designed to increase the number of residents and businesses purchasing green power. During the roughly two-month "Wind Power Challenge," 1,150 customers signed up to purchase wind power from local renewable energy suppliers, far exceeding the campaign's goal of 500 new subscribers. When combined with the more than 5,700 pre-existing green power customers, about 16% of the city's residents and businesses now purchase green power. Collectively, these purchases represent nearly 5% of the community's total electricity needs.

Due in part to the success of the challenge, which was sponsored by the city and local non-profit Western Resource Advocates, the U.S. Environmental Protection Agency's Green Power Partnership has designation the city a "Green Power Community," making Boulder the first community in Colorado to receive this distinction.

The following local renewable energy suppliers participated in the city's wind power challenge: Clean and Green; Community Energy, Inc.; Renewable Choice Energy; and Xcel Energy through its Windsource program.

News Release - Boulder exceeds goals of Wind Challenge; Becomes Green Power Community

News Release - City of Boulder challenges community to increase wind power purchases

Western Resource Advocates Contact: Susan Innis, (303) 444-1188, ext 221

City of Boulder Contacts:
Carolyn Weinreich, Office of Environmental Affairs, (303) 441-1914
Jodie Carroll, Media Relations, (303) 441-3155

November 2005 - Utility customers participating in green pricing programs that offer some form of protection from fossil-fuel price changes are finding that their green power premiums are shrinking or even turning negative. For example, as of November 1, Colorado customers participating in Xcel Energy's Windsource program are paying 0.66¢/kWh less for wind energy than for "regular" electricity because of an increase in the utility's energy cost adjustment (ECA). Since the ECA announcement, Xcel has sold out of its remaining available wind energy supply and has established a waiting list for new program signups.

In Oklahoma, OG&E Electric Services customers purchasing the OG&E Wind Power product now pay 0.13¢/kWh less for wind energy than for traditional electricity and customers of Edmond Electric's pure&simple wind power program now pay 0.33¢/kWh less. Both utilities adjust their fuel charge monthly. Finally, in September, Austin Energy announced an increase in its fuel charge, which will bring the rate for its most recent GreenChoice product offering to near parity with the standard electric rate.

News Release - Fuel Charge Increase Coming

News Article - Energy Bargain Blowing in the Wind

September 2005 - The price premium for Xcel Energy's Colorado Windsource product has fallen once again. When the product was launched in 1997, the wind energy premium was set at 2.5¢/kWh and participating customers were exempted from certain cost adjustments, the most important of which is the "electric commodity adjustment" or ECA. With the ECA rising along with fuel costs, the effective premium for the Windsource product has now fallen to 0.97¢/kWh—however, Windsource customers are still subject to the base energy rate charge of about 1.3¢/kWh. With the price change, a typical Xcel Energy residential customer in Colorado can now purchase 100% wind energy at an average monthly cost of about $5.70.

Separately, the Center for Resource Solutions announced that Xcel Energy applied for and received Green-e certification for the Colorado Windsource product. The Green-e program provides independent, third-party certification to assure that renewable energy products meet strict environmental and consumer protection standards.

News Release - Green-e Certifies Xcel Energy's Windsource Renewable Energy Product

More Information - Xcel Energy Colorado Windsource Tariff Sheet (PDF 85 KB)

June 2005 - Xcel Energy announced that more than 11,000 Minnesota-based customers have signed up for the utility's Windsource program, prompting the utility to add new wind turbines to meet the increased demand. Under the program, customers can purchase 100-kWh blocks of wind energy for an additional $2.00 monthly charge, or a rate premium of 2¢/kWh. Systemwide, more than 40,000 customers are participating in the Windsource program, which is offered by the utility in its Minnesota, Colorado and New Mexico service territories.

News Release - Xcel Energy's Windsource program a hit in Minnesota

November 2002 - The Minnesota Public Utilities Commission recently approved a wind energy option for Xcel Energy's 1.1 million Minnesota-based customers. Under the Windsource program, customers will have an option to purchase 100-kWh blocks of wind power for $2.00 each, or a premium of 2¢/kWh. Xcel plans to launch the program in January 2003 with 1.8-MW of wind power supplied from a small wind vendor in southwestern Minnesota.

Xcel Energy Contact: Andy Sulkko (303) 294-2554
ME3 Contact: J. Drake Hamilton (651) 726-7562

May 2002 - The Star Tribune reported that, pending regulatory approval, Xcel Energy plans to introduce its Windsource green pricing option to its Minnesota-based customers this summer. Similar to its Colorado-based program, Xcel proposes to offer customers the option to purchase wind energy in 100-kWh monthly blocks for an extra $2.50 per month (or 2.5¢/kWh) or customers can choose to have all of their power supplied as wind energy. Minnesota law requires the state's electric utilities to offer customers voluntary options to purchase power generated from renewable sources.

News Article - Xcel to introduce 'green pricing' wind power program - No longer online at Star Tribune

Additional Information - Minnesota Public Utilities Commission Staff Briefing Paper on Xcel Renewable Energy Rider (PDF Download: 68K) Download Acrobat Reader

October 2001 - Xcel Energy (formerly Public Service of Colorado) announced that it has added the output from a second wind project to supply power for its Windsource green pricing program. The new project, rated at 30 megawatts (MW), is located in northeastern Colorado near Peetz, and is the second supply addition for the Windsource program this year. In August, Xcel added 10 MW to its existing Ponnequin wind facility in northern Colorado, which has provided power for the program since its inception. With the new additions, Xcel now offers nearly 60 MW of wind power for purchase by its 1.6 million Colorado-based customers.

More than 17,000 customers now participate in Windsource, including more than 400 businesses and four wholesale customers.

News Release - Colorado's Second Commercial Wind Farm Debuts - No longer online at

News Article - 2nd wind farm plugged in (Rocky Mountain News)

Xcel Contact: Andy Sulkko (303) 294-2554

December 2000 - Sandia National Laboratories announced a 1-MW wind power purchase from Xcel Energy (formerly Southwestern Public Service) that, under state law, will trigger the installation of a second wind turbine to supply the utility's Windsource program. Currently, 291 Xcel customers are purchasing wind energy from a single 660-kW turbine located near Clovis, New Mexico.

The additional wind energy will be purchased through the U.S. Department of Energy's (DOE) Albuquerque Operations Office and is expected to meet about 6% of the annual load of DOE's Waste Isolation Pilot Plant (WIPP). The laboratory plans to offset the cost of the wind power through savings from energy efficiency improvements. Sandia plans to competitively procure a total of up to 10 MW of wind power by 2010.

News Release - Sandia to Stimulate Statewide Wind Power Development

News Release - Sandia energy order could blow new life into wind electricity (Albuquerque Tribune)

September 2000 - In August, the Colorado Air Pollution Control Division (APCD) finalized a settlement with the largest electricity user in the state by which the company agrees to purchase approximately $300,000 worth of wind power for up to five years to offset a violation of air quality regulations. The state typically allows violators to offset up to 80% of a civil penalty by performing a Supplemental Environmental Project (SEP). In this case, the two parties agreed to a SEP in which the company will place funds into an escrow account to be managed by Public Service Company of Colorado (PSCo), which will be used to pay for power from the utility's WindSource program. The average annual purchase called for in the SEP is roughly equivalent to the annual output of one 750-kW wind turbine.

More Information - Renewable Energy Special Enforcement Project Summary

APCD Contact: Jill Cooper (303) 692-3269

August 2000 - Public Service Company of Colorado (PSCo) announced plans to expand its Colorado-based wind energy capacity by 36 megawatts to meet the growing demand for its Windsource green pricing product. PSCo plans to add 10 MW of capacity to the 20 MW already installed at its Ponnequin wind site and to contract for the remaining 26 MW from a private developer.

Current Windsource subscribers pay an additional $2.50 per month for every 100 kWh of wind energy received, or 2.5¢/kWh. However, PSCo noted that it might seek regulatory approval to raise the premium for new subscribers by as much as 1.0¢/kWh.

News Release - Public Service Co. of Colorado Expands Windsource - No longer online at

News Article - Demand prompts PSC to harvest more power from its wind farms (Denver Post)

News Article - Public Service hopes to triple size of wind energy program (Rocky Mountain News)

PSCo Contact: Andy Sulkko (303) 294-2554

April 2000 - By a margin of nearly 5 to 1, students at the University of Colorado voted to increase student fees by $1.00 per semester so that several campus buildings can be powered with wind energy. The wind purchase measure was placed on the ballot following a petition drive that garnered 1,300 student signatures. The affirmative vote for wind energy represented the largest margin of victory of any measure on the ballot.

The student voter turnout of nearly 30% was also the highest in University of Colorado history, far eclipsing the previous high of 12%. According to college officials, the record turnout can be directly attributed to student campaigning in support of the wind energy measure.

The amount of wind energy that will be purchased is roughly equivalent to the entire annual output of one large, 750-kW wind turbine. The wind energy will be purchased from Public Service Company of Colorado, which operates the WindSource green pricing program.

News Release - University of Colorado Students Vote "Yes" for Wind Power

News Article - CU vote OKs wind power (Denver Post

CU contacts: Ghita Levenstein, (303) 492-3229 or Wendy Hunter, (303) 492-8308

September 1999 - Yampa Valley, which serves about 21,000 accounts in Steamboat Springs and other cities in northwestern Colorado, is offering its customers the opportunity to purchase 100-kWh blocks of wind power for 3¢/kWh. Yampa Valley has entered into an agreement with Public Service Company of Colorado (PSCO) to purchase about half of the output from one of the turbines installed at the Ponnequin wind site in northern Colorado. As of August 1999, Yampa had sold about 260 of the 700 blocks available for the program. Delivery of the wind power, originally scheduled for April, is awaiting FERC approval of the wholesale power contract.

August 1999 - Public Service Company of Colorado (PSCo) announced that it has completed construction of the 20-MW, Colorado-based wind project that supplies power for its Windsource green pricing program. Currently, 19 MW of the wind power have been subscribed by more than 12,000 residential customers and about 250 businesses. PSCo customers pay a premium of 2.5¢/kWh for the wind energy, which they can buy in 100-kWh monthly blocks.

News Release - Windsource Subscribers to Receive Wind Power by August (Public Service - 7/22/99)

PSCo Contact: Andy Sulko (303) 294-2554

February 1999 - Xcel Energy (formerly Southwestern Public Service) has begun marketing the Windsource program to its New Mexico-based customers. The program offers electricity generated from a 700-kW wind turbine scheduled to be completed this spring. The wind power is being sold to participating customers at a premium of $3.00 per 100-kWh block. Similar to the program of its sister company, Xcel Energy Colorado, customers can choose to purchase as few or as many blocks of wind energy as they want, up to their total monthly consumption.

Xcel notes that the turbine could provide 1,540 customers, or about 1.5% of the utility's New Mexico customer base, with one 100-kWh block of wind power each month — the average customer uses 700 kWh to 800 kWh of electricity monthly. The utility will commit to build a second turbine when the output of the first turbine is 80% subscribed. SPS is the first utility in New Mexico to offer its customers the opportunity to purchase wind energy.

News Release - SPS: Now You May Choose Wind Power

January 1999 - Public Service Company of Colorado (PSCo) announced that the first seven wind turbines installed to provide power for the company's Windsource program are now generating electricity for the first 2,000 program subscribers. In total, 9,000 of the utility's customers have signed up for the program. Participating customers can purchase 100-kWh blocks of wind energy to meet some or all of their electricity needs at a rate premium of $2.50 per block per month. Current plans call for a total of 16 MW of wind generating capacity to be installed at the site to serve the program.

Separately, PSCo announced that it has selected the first four schools to receive photovoltaic (PV) systems through its Solar Schools program. The systems are being funded by the company's Renewable Energy Trust in partnership with the Colorado Governor's Office of Energy Management and Conservation (OEMC), and the Utility PhotoVoltaic Group.

The Renewable Energy Trust is a tax-deductible fund established in 1993 to develop small-scale renewable energy projects. Approximately 15,000 customers contribute to the trust, either through fixed contributions or using a bill "round-up" option. To date, more than 30 small projects have been completed. In 1998, the trust turned its attention to the installation of PV systems on schools. Current plans call for 20 schools to receive systems during the 1998-99 school year and as many as 20 more by the end of 2000.

News Release - Public Service Company Announces Solar Program For Colorado Schools
News Release - Fledgling Wind Farm Generates Momentum (Denver Post)

July 1998 - Public Service Company of Colorado reports that, as of May 31, 1998, subscriptions to the utility's Windsource program had reached the equivalent of 13.3 MW of wind energy generating capacity. The information is contained in the company's Spring/Summer 1998 mailing for Windsource subscribers. The breakdown of subscriptions by customer type are: 9.05 MW - residential; 2.0 MW - commercial; and 2.25 MW - wholesale customers.

May 1998 - Xcel Energy (formerly Southwestern Public Service) has issued an RFP for a 700-kW wind turbine that will provide power for New Mexico's first green pricing program. The program is a condition of PUC approval for a 200-MW gas turbine installed in 1997. The wind power will be sold at a premium of $3.00 per 100-kWh block. If enough customers sign up for the program, Xcel will install an additional 500 kW. Marketing is set to begin this summer and the turbine is scheduled to come on-line in 1999.

Xcel Energy Contact: Bill Crenshaw (806) 378-2121

May 1998 - The first 700-kW turbine installed at Public Service Company of Colorado's (PSCo) wind farm is feeding clean power to WindSource subscribers. The turbine is the first of 17 turbines that will be installed by the end of the year.

PSCo reports that its WindSource program will be further expanded in response to continuing customer demand. Already, more than 50 businesses and organizations and 7,300 residential customers have signed up for the service, totaling more than 12 MW of demand.

February 1998 - Public Service Company of Colorado (PSCo) reports that more than 4,000 customers have subscribed to purchase 9.6 MW of wind power through the WindSource Program. Power from the first of seven Micon 750-kW turbines will begin flowing into the grid this month. Construction of the remaining six turbines should be completed in April.

August 1997 - The Weld County Planning Commission approved Public Service Company of Colorado's (PSCo) application to construct a 10-megawatt wind farm in northern Colorado to be financed through the Windsource program. Construction on the first 4.5 megawatts is scheduled to begin in August 1997, with six turbines expected to be running by the end of the year. Another seven turbines, or 5.25 megawatts, will be installed in the spring of 1998. To date, approximately 2,800 PSCo customers have subscribed to purchase a total of 6.85 megawatts.

July 1997 - The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL), in Golden, Colorado, will purchase 4,000 kilowatt hours from Public Service Company of Colorado's (PSCo) new Windsource program. Through Windsource, PSCo will generate electricity from wind-powered turbines near the Wyoming border.

NREL also uses solar energy to power streetlights, water pumps, and a lab entrance sign. An experimental 12-kilowatt rooftop solar system also feeds electricity back into PSCo's grid. In addition, more than 100 NREL employees have signed up for Windsource at home.

News Release - Energy Lab Supports Green Power

June 1997 - Two early Public Service Company of Colorado (PSCo) contribution programs have resulted in the installation of 15 kW of off-grid photovoltaics. Ten thousand customers have participated through a bill "round-up" program, contributing about $53,000 annually, and 5500 customers have contributed an average of $102,000 annually to the Renewable Energy Trust program. A third program, WindSource, has been launched to provide a wind energy-based service option to customers. As of May 1997, 800 customers had subscribed to WindSource. Through a fourth program, Solar Source, PSCo plans to install 20 rooftop PV systems during 1997.

April 1997 - The Colorado Public Service Commission approved PSCo's experimental wind power tariff in February 1997, and, on March 22, 1997, PSCo started marketing its Windsource program. More than 100 customers signed up for the program in the first day of marketing. PSCo expects the wind farm to generate electricity for 5000 homes by January 1998 and, by the summer of 1998, to generate electricity for 10,000 homes.

PSCo is also planning a pilot program to install 15 to 25 rooftop solar energy systems on customers' homes at below-market prices. Called Solarsource, the program is currently awaiting approval by the Public Service Commission. The program is made possible through Colorado SunService, a unique collaboration between PSCo, other Colorado utility companies, the U.S. Department of Energy, the Utility PhotoVoltaic Group, the Colorado Governor's Office of Energy Conservation, and Solarex, a solar manufacturer.

Renewable Energy Trust is another program sponsered by PSCo. Customers make voluntary monthly pledges in support of the accelerated growth of renewables. This program includes the Round Up for Renewables in which the rounded-up portion of the customers' monthly bill is added to the Trust.

March 1997 - On February 19, 1997, the Colorado Public Utility Commission adopted an order approving the settlement between Public Service Company of Colorado (PSCo) and other interested parties concerning PSCo's experimental wind power tariff. Customers will be able to subscribe to renewable resources in 100-kWh blocks. The settlement allows a premium of 2.5¢/kWh. The utility will either own or purchase power from small wind projects in northeastern Colorado. PSCo will involve environmental and community-based organizations and local governments in marketing and sales promotion activities, and will use a possible federal grant to buy down the cost of the wind energy and the green rate.

News Release - 'Green energy' an option; PSC plan calls for costly wind power

PSCo Contact: Jeff Ackerman (303) 294-2238 and Steve Dayney (303) 294-8596

Printable Version

Skip footer navigation to end of page.