Constellation Energy (NYSE: CEG) today announced an agreement with PureSense Environmental, Inc. to provide automated load response programs to customers of PureSense Environmental's energy response program, PureSenseESP. The relationship will provide the real-time irrigation management company the opportunity to offer their growers Constellation Energy's innovative load response programs to help them curb their energy usage and keep their businesses environmentally friendly.

"An agreement with PureSense is a natural fit for our load response program. It allows PureSense customers to further enhance the sustainability practices of their businesses while simultaneously earning revenue through a combination of the latest technologies in energy and water efficiency," said Randy Palombi, Vice President, demand response and utility sales, Constellation Energy. "Our load response programs help customers curtail energy usage in an easy, predictable and non-intrusive way."

Through this collaboration, eligible PureSense customers will have access to 24-hour load response support and VirtuWattTM, a sophisticated energy management platform that can help them build their energy strategy. In addition, Constellation Energy can offer additional products to PureSense customers including power, gas, solar, energy efficiency and renewables.

"We are excited to bring the knowledge and experience of a 14 billion dollar company to our growing customer base," said Chris Berkner, President and CEO of PureSense. "The joint offering by Constellation Energy and PureSense provides agricultural customers the tools and services to accurately manage both their energy and water usage."

Constellation Energy currently manages approximately 1,700 megawatts of load response for commercial and industrial customers in the PJM, New England, New York, ERCOT, California and Ontario regions. The company's VirtuWatt web application, which is also available as an app for both iPhone® and iPad®, enables customers to better monitor and manage their electricity use and maximize the financial benefits of demand response programs through minute-to-minute metering, real-time pricing information, marketplace bidding capabilities and automated energy curtailment strategies.

PureSense Environmental currently provides real-time irrigation intelligence to over 300 growers who grow over 50 different crop types across 10 states, and most recently Mexico. Through its Irrigation ManagerTM software application, Soil Moisture System, and Pump Monitoring and Control growers can make better irrigation decisions that improve their bottom line.

To watch a brief video about Constellation Energy's VirtuWatt Energy Manager, please visit: http://www.youtube.com/ConstellationEnergy#p/u/1/m62Rs6b0Vcw.

To watch a brief video about PureSense, please visit: http://www.youtube.com/profile?user=PureSenseSoftware#p/u/1/j3ZNBO7H8c4

iPhone® is a registered trademark of Apple Inc.

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 $14.3 billion in 2010.

About PureSense

PureSense (www.PureSense.com) is the premier real-time irrigation intelligence company providing remote monitoring, control and decision support tools to the agricultural industry. Since 2006, PureSense has provided useful, innovative technology and unparalleled service and support to over 300 growers who grow over 50 crop types across 10 states. PureSense has also recently expanded operations into Mexico. PureSense delivers upon its customer promise by empowering growers to make better irrigation decisions that enhance crop yield, crop health and cost reduction. In addition, PureSense soil moisture and water pump monitoring enable growers to leap forward in efforts to achieve resource sustainability goals.

Constellation Energy
Media Contact:
Christina Pratt, 410-470-7433
or
Investor Contact:
Sandra Brummitt, 410-470-6440
or
Media Line: 410-470-7433
www.constellation.com
or
PureSense Media Contact:
Amber Wighton, 805-441-3689
or
PureSense: 888-882-7873
www.PureSense.com