CONTACT INFORMATION

Excelergy
www.excelergy.com

Hydro One
www.hydroone.com

LEXINGTON, MA and TORONto, ONTARIO, CANADA, October 30, 2000 -  Excelergy Corporation, a provider of leading e-infrastructure technology solutions for the retail energy industry, announced today that Hydro One, one of the largest electricity delivery companies in Ontario, has implemented the Excelergy eXACT™ solution set to provide primary data transaction and trading partner communications management.

"We are pleased to be working with Excelergy," said Christopher Booth, chief information officer of Hydro One Networks Company. "Hydro One is committed to Supporting the deregulated efforts in the Canadian market, and with Excelergy's eXACT solution we'll be able to manage the transactions and facilitate the electronic communications required under deregulation."

Using the eXACT solution set, Hydro One will be able tovalidate transaction information, manage errors and exceptions and communicate corrected information with speed, accuracy and efficiency.* eXACT will be integrated with Hydro One's existing customer information and billing system, Customer One, developed by Anderson Consulting. The eXACT solution implemented for Hydro One is fully compliant with Ontario Energy Board's mandated Electronic Business Transaction (EBT) standards.

"Hydro One has given Excelergy the opportunity to Continue expanding our presence in Ontario, and to build on our experience in helping companies meet the challenges of the Canadian market," said Cary Bullock, president of Excelergy. "We are delighted that Hydro One has chosen our eXACT solution to manage its growing number of EBTs."

About Hydro One
Hydro One is principally engaged in electricity transmission, distribution, and energy services businesses and serves approximately one million retail customers in Ontario. Hydro One owns and operates one of the largest transmission and distribution systems in North America.

About Excelergy
Excelergy delivers complete e-infrastructure solutions to retail energy companies operating in the global energy market. Excelergy's innovative suite of EDI- and XML-enabled products includes the Excelergy ABP™ 3000 customer billing and information system, the Excelergy eXACT™ family of business-to-business transaction management solutions, and the web-based Energymarketplace energy portal. Headquartered in Lexington, MA, Excelergy also has U.S. offices in Santa Monica, CA and Atlanta, GA. Its European headquarters is located in Bristol, England.

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