The Structure Group(R) Deploys nMarket(R) for City of Pasadena's Water and Power Department to Support Activities in the California Market.

HOUSTON -- The Structure Group(R), an industry leader in consulting and software for major energy market operators and participants, announced today that it has successfully installed its nMarket(R) California software for Pasadena Water and Power (PWP), a department of the City of Pasadena, California. The product was purchased by PWP to facilitate scheduling, bidding and settlement validation with the California Independent System Operator (CAISO).

"After a careful evaluation of the products available to perform interfacing and shadow settlements with the California ISO, we found that Structure's nMarket product had the functionality that we needed for California business operations," said Robert Sherick, Director of Power Supply for Pasadena. "In addition, the product is widely used by other market participants, so we felt confident that the implementation and integration of the system would go smoothly."

nMarket is now being used by PWP to help manage the submission of energy and transmission schedules to the CAISO as well as create and submit ancillary service bids and real-time imbalance energy bids. This helps ensure that the benefits of participating in the CAISO are maximized while minimizing the costs to PWP's electric customers.

Pasadena is also using Structure's nMarket software to create shadow settlement statements, in order to verify the CAISO's preliminary and final settlement statements for the power transactions. Utilizing nMarket, Pasadena has also realized the ability to generate numerous reports to support both front- and back-office business activities for the City of Pasadena's power trading business.

"This was a great project for us. Structure's team of professionals completed implementation, integration and training for PWP in 10 weeks," Structure Director JP Harper said. "We are seeing continued strong interest in our nMarket California product as companies begin to prepare for the upcoming CAISO market protocol changes scheduled for late 2007."

The PWP implementation represents the 21st installation of Structure's nMarket California product in North America. Structure's nMarket product supports current California market rules and will be used by many Schedule Coordinators to support market trials in the newly redesigned CAISO market.

About Pasadena Water and Power, in Pasadena, California

Pasadena Water and Power (PWP) began providing electricity in 1906 and began delivering water in 1912. The city built its first electric generating steam plant in 1907 and took over operation of its municipal street lighting from Edison Electric. In 1909, Pasadena began the extension of its operations to commercial and residential customers that resulted in the replacement of all Edison Electric service in the city by 1920. Today, PWP provides electric service to more than 61,000-metered accounts over a 23 square-mile service area, in Pasadena, at competitive rates.

About The Structure Group

The Structure Group is a leading provider of energy trading business solutions and consulting services to market participants in North America and Europe. Established in 1998, Structure has experience working with organizations in all stages of the energy value chain. Structure introduced nMarket(R) in 2000 to assist energy organizations with the bidding, scheduling, dispatch and settlement of energy trades and ancillary services in regional power markets. Power marketers who participate in the California, ERCOT, Midwest, New England, New York, PJM, SPP and Ontario markets are currently using the product. The Structure Group recently introduced nMarket Gas. For more information about The Structure Group, visit www.thestructuregroup.com or contact us directly at [e-mail].