GEORGETOWN, GUYANA and TORONTO, CANADA. March 31, 2009 - Advanced Utility Systems (Advanced) is pleased to announce that Guyana Power & Light Inc. (GPL) has selected CIS Infinity to replace its legacy customer information and billing (CIS) solution.

GPL’s choice of Advanced Utility Systems further strengthens Advanced’s commitment to The Caribbean Community and Common Market (CARICOM) member nations.

Based in Georgetown, Guyana, GPL is the largest supplier of electricity in the country of Guyana – serving approximately 130,000 electric customers. Guyana is part of mainland South America, situated on the Northern Coast. Guyana is bordered by Suriname to the east, Brazil to the south and southwest, Venezuela to the west, and the Atlantic Ocean to the north.

GPL began their search for a new CIS in early 2007. Working with the Inter-American Development Bank (“IDB”) GPL was able to identify and qualify firms to bid on replacing their existing legacy CIS system. After a rigorous evaluation, and thorough reference checks, GPL selected Advanced and CIS Infinity as their preferred CIS solution. As part of this evaluation, Advanced also presented to GPL the robust functionality of CIS Infinity and Advanced’s commitment to CARICOM member nations.

As Steve Hammond, General Manager of Advanced Utility Systems commented: “After a detailed, transparent, and methodical evaluation process, GPL was in a position to select Advanced and CIS Infinity. GPL’s selection of Advanced further strengthens our goal of becoming the premier provider of CIS Software to CARICOM members. Advanced is very committed to implementing a successful project to GPL, and increasing the efficiency and effectiveness of GPL operations. CIS Infinity will bring true value to not only GPL, but also the country and citizens of Guyana.”

Implementation of CIS Infinity is scheduled to being in May 2009. Advanced Utility Systems is excited to begin a long and mutually successful partnership with GPL and the Country of Guyana.

For more information on Advanced and CIS Infinity® visit our website at www.advancedutility.com.

About Advanced Utility Systems
Advanced is a wholly-owned subsidiary of Harris Computer Systems that provides Customer Information and Billing solutions exclusively to utilities and municipalities. Harris is a leading provider of financial management and Customer Information Systems (CIS) software solutions. Since 1976, Harris has focused on providing feature-rich and robust turnkey solutions to all levels of local government as well as public power and water markets throughout North America. Harris' focus is on creating long-term relationships with our customers and ensuring that we meet the changing needs of our customers over time. For further information on Harris Computer Systems, please visit our website at www.Harriscomputer.com.

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