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Veolia Energy Partners with Comcast Center in Sustainability Effort

10/30/08  • Energy
PHILADELPHIA, Oct. 30, 2008-  Veolia Energy North America, the owner and operator of the largest portfolio of district energy (heating and cooling) networks in the United States, confirmed that the company is providing heating and cooling services to the Comcast Center in Philadelphia through its subsidiary, Trigen-Philadelphia Energy Corporation. Comcast Center, which opened its doors in June of this year, is the tallest sustainable building in the country and designed for LEED certification by the U.S. Green Building Council.

"We knew from the outset that we wanted this building to be developed with sustainability and energy efficiency in mind," said John Gattuso, Senior Vice President & Director, National Urban Development, of Liberty Property Trust, the project developer."Veolia Energy helped us realize both goals with both the short-term and long-term cost savings offered by district energy, a particularly attractive option considering the upcoming market deregulation."

District energy plays an integral role in Philadelphia's infrastructure.The network of underground steam pipes owned, operated and maintained by Veolia Energy, totals about 30 miles in length and serves approximately 300 customers.

"When we researched different energy sources for Comcast Center, we considered many different options and evaluated them on a variety of criteria, from utility flexibility to sustainability to construction and maintenance cost," said Scott H. Lawson, PE, LEED of PHY, Inc., Principal in Charge for the project."We felt that it was important to provide the building operator with the ability to heat and cool the facility in the most cost effective manner.Veolia Energy provides a high ROI over the life of the building and is the only service provider that can offer the unique qualities and reduced construction costs associated with district energy.They were ultimately the best long-term solution when all factors were considered."

Steam from Veolia Energy's system is utilized for cooling as part of a hybrid chilled water plant.By introducing a steam absorption chiller, the operator can select steam as an energy source during summer months in order to decrease peak power consumption and reduce electrical demand charges.

In addition, steam from Veolia Energy's system is also used to heat building common areas and to preheat all office ventilation air.By utilizing steam in these systems, the winter peak electrical demand is effectively eliminated.Use of Veolia Energy's steam system also eliminates the need for total dependency on boilers, freeing up square footage and lessening in-house maintenance requirements.

"We are proud to work with all of the companies that collaborated to achieve the energy efficiency and sustainability goals for Comcast Center," said Bill DiCroce, SVP of Veolia Energy North America's East Region."District energy is a tested and reliable delivery system that provides an innovative solution to Comcast Center's needs, and we look forward to partnering with them in their continued quest for environmentally friendly solutions."

About Veolia Energy North America
A subsidiary of Veolia Environnement, Veolia Energy North America is a leading provider of custom, sustainable energy and facility operations and management solutions in the United States.Since its creation, Veolia Energy has focused on energy and environmental optimization. It meets customer expectations by delivering customized, end-to-end solutions to ensure efficient energy supply, including management of heating and cooling systems, energy plant engineering and maintenance services, and facility operations and management services for a wide range of industries.In Philadelphia, Veolia Energy serves more than 300 customers in the central business district, heating and cooling approximately 100 million square feet of customer space. These environmentally-responsible energy services help customers reduce their carbon footprint through increased energy efficiency.With nearly 320,000 employees globally, Veolia Environnement reported revenue of $48 billion in 2007.

About Liberty Property Trust
Liberty Property Trust (NYSE:LRY), headquartered in Malvern, Penn., is dedicated to enhancing people's lives through extraordinary work environments. The real estate investment trust (REIT) serves customers in the United States and United Kingdom through the development, acquisition, ownership and management of superior office and industrial properties. Liberty's 74 million square foot portfolio offers exceptional locations and flexible design to more than 2,100 tenants at 700 office, distribution and light manufacturing facilities. The company is a leader in the development of high performance green buildings. www.libertyproperty.com.

About PHY, Inc.
Paul H. Yeoman's, Inc. (PHY, Inc.) is one of the Philadelphia area's most established engineering firms, offering a superior combination of solid engineering consulting services with state of the art technical capabilities to best serve our extremely diversified client base.www.phyinc.com.

Contact : Veolia Energy North America - Rowan Sanders
Tel : 617-849-6656