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CHICAGO--([ BUSINESS WIRE ])--Constellation Energy (NYSE: CEG), a longtime energy supplier to thousands of Illinois businesses and more recently to more than 43,000 residential customers, will continue its renewable energy support for Chicagolandas sports franchises by sponsoring the first agreena games for the Chicago Bulls and Chicago Blackhawks at the United Center.

"We take pride in working together with Constellation and the United Center on this initiative."

As a prelude to Earth Day, Constellation will sponsor agreena games for the Blackhawks on April 1 and the Bulls on April 2 by purchasing Green-e Energy Certified [ renewable energy certificates ] (RECs) to match the electricity use on each game day. RECs represent the environmental benefit of electricity generated by wind and therefore avoid carbon dioxide emissions. Constellation sponsored similar efforts last year for the Chicago Bears, Cubs and White Sox.

aConstellation is thrilled to help the Bulls and Blackhawks enhance their energy efficiency and environmental sustainability and welcomes the opportunity to literally power these two great teams by supplying electricity to the United Center,a said Bruce Stewart, chief marketing officer for Constellation. aUsing RECs to avoid greenhouse gas emissions from electricity use is an effective approach for Chicagoas storied sports franchises as it helps raise awareness and support by their legions of loyal fans.a

In addition to powering the United Center, Constellation also supplies electricity to Wrigley Field and the Bearsa Halas Hall team offices and practice facilities.

aThrough our new relationship with Constellation Energy, we're in a position to work with a national industry leader as we continue to look for ways to improve our environmental performance and to educate our fans about the importance of energy conservation,a said Michael Reinsdorf, president and chief operating officer of the Chicago Bulls. aOne of the first activations of this valuable partnership is the Bulls'GoGreen Game' on April 2. We look forward to working with Constellation Energy on this event and other fan-focused initiatives.a

aConstellationas greening of the Chicago Blackhawks game on April 1supplements several of our teamas environmental efforts,a said Chicago Blackhawks Executive Vice President Jay Blunk. aWe take pride in working together with Constellation and the United Center on this initiative.a

When Constellation serves as a proud sponsor of the Blackhawks and Bulls agreena games in April, it also will be an opportunity for fans to learn more about the growing trend to shop and save on home electricity, just as consumers shop for internet or phone service.

About 262,000 Illinois residents have [ chosen new home electricity suppliers ] in the past year. Constellation Energy, through its Constellation NewEnergy retail business, offers Illinois residents savings up to 18 percent off ComEdas current rate and up to 22 percent off current rates in the Ameren service territories. More information is available at [ home.constellation.com ]. Constellation customers who [ refer a friend ] may be eligible to receive a $25 Constellation Visa Prepaid Card.

ComEd's and Amerenas rates are subject to change and, therefore, we cannot guarantee savings over the full term of our price plans.Constellationas price does not include any taxes, utility distribution charges or other utility fees, charges or credits. In ComEdas service territory, estimated savings are based on ComEd's current BES residential (non-electric space heating) rate. Customers on ComEd's BES residential (electric space heating) rate will not save.In Ameren, estimated savings are based on Amerenas current BGS residential (non-electric space heating) rate for the rate zone in which customer resides. Customers on Amerenas BGS residential (electric space heating) rate will not save. For additional information on our price comparison, visit [ home.constellation.com ].

About Constellation Energy

Constellation Energy ([ www.constellation.com ]) is a leading competitive supplier of power, natural gas and energy products and services for homes and businesses across the continental United States. It owns a diversified fleet of generating units, totaling approximately 12,000 megawatts of generating capacity, and is a leading advocate for clean, environmentally sustainable energy sources, such as solar power and nuclear energy. The company delivers electricity and natural gas through the Baltimore Gas and Electric Company (BGE), its regulated utility in Central Maryland. A FORTUNE 500 company headquartered in Baltimore, Constellation Energy had revenues of $13.8 billion in 2011.