The goal of the Exelon opsGHG™ project is to develop and implement an environmental management information system (EMIS) to track and measure greenhouse gas (GHG) emissions. This EMIS solution, provided by ESP (Environmental Software Providers) is being used by Exelon to support the development and maintenance of a corporate-wide GHG emissions inventory that is consistent with prevailing protocols, standards and industry best practices. These are represented by the World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD) GHG Protocol Initiative, US EPA Climate Leaders Partnership, and American Petroleum Institute (API) Compendium guidelines. The GHG tracking tool will enable Exelon to meet the requirements for data accuracy, transparency, measurement and monitoring that are evolving at the international, national, regional, state and local levels. The opsGHG™ database EMIS, will serve as the basis for establishing and tracking progress towards Exelon's GHG commitments.

In pursuit of those goals, Exelon purchased opsGHG™ - a module in ESP's Greenhouse Gas Suite™ - and contracted URS Corporation, an ESP implementation partner, to perform the implementation. The Exelon - URS - ESP team has worked closely together on this first, enterprise-wide application of the opsGHG™ software. The resulting EMIS system based on opsGHG was successfully delivered, on time and within budget, to Exelon in December 2003. The system is currently undergoing internal stress testing at Exelon, and is anticipated to be fully operational in a production environment in March 2004.

Exelon Corporation, a Fortune 500 Company, (NYSE: EXC) is one of the nation's largest electric utilities with approximately 5 million customers and more than $15 billion in annual revenues. Its two principal lines of business are generating and delivering electricity to wholesale customers and delivering electricity and gas to retail customers. Its subsidiary, Exelon Generation, has one of the industry's largest portfolios of diversified electricity generation capacity, with a nationwide reach and strong positions in the Midwest and Mid-Atlantic. Exelon Energy Delivery serves retail customers: more than 3.4 million electricity customers in Northern Illinois through Commonwealth Edison and about 1.5 million electricity and 440,000 natural gas customers in Southeastern Pennsylvania through PECO Energy. Visit www.exeloncorp.com for more information.

Exelon is a participant in the US Department of Energy's 1605(b) and US EPA's Climate Leaders programs to reduce greenhouse gas emissions, and is executing various greenhouse gas reduction and mitigation initiatives. This includes the implementation of innovative strategies like the opsGHG™ project to measure and manage greenhouse emissions while yielding a number of additional environmental and business benefits.

URS has been supporting Exelon with the implementation of these strategies with its environmental expertise and in-depth knowledge of the Greenhouse Gas Suite™ software. (URS assisted the development of the API Compendium and has been an ESP partner on several large scale enterprise wide implementations of opsEnvironmental™, ESP's sister product to the Greenhouse Gas Suite™ software.) URS contributes to the success of its clients by bringing cost-reducing engineering, environmental, and construction solutions to them. URS is one of the industry's leading services firms serving government agencies, industrial, and commercial companies worldwide. Ranked as the #1 design firm for three (3) consecutive years by Engineering News-Record (April 2003), URS has more than 20,000 employees and operations in 30 countries. URS configures, deploys and supports information technology (IT) enabled solutions that deliver work-process efficiencies (reduced costs and increased agility) and decision support to our clients. URS IT services are provided in addition to, and as an integral part of, our comprehensive professional services in planning, engineering, architecture, environmental and applied sciences, and program and construction management. Visit www.urs-etechnology.com for more information.