Redwood City, California, July 24, 2007 – Trilliant Incorporated, the industry's leading provider of advanced metering infrastructure (AMI) based on open standards, today announced an agreement to supply the Trilliant AMI Mesh Network solution for the "Responsive Pricing and Smart Meter" pilot program to be run by Louisville Gas and Electric (LG&E). LG&E, a subsidiary of E.ON U.S., a member of the world's largest investor owned energy supplier, will open the program to 2000 residential and small commercial volunteer customers encompassing gas and electric metering, energy conservation tools and in-premise displays.

Designed to test the idea that consumers who can easily access information on use and cost will shift usage patterns to take advantage of varying prices during the day, the program was approved by the Kentucky Public Service Commission (PSC). A customer, who chooses to reduce usage during the high-cost, high-peak load periods, through direct action or preconfigured set points, will see an overall reduction in their electric bill. Shifting usage away from those periods can benefit both the utility and its customers by reducing the maximum loads and thus lessening the need to build new power plants to meet peak demand.

"LG&E's proposed responsive pricing pilot program will incorporate time-of-use pricing with a real-time, critical peak pricing component; smart metering and information displays; and a Demand Side Management component for those customers who choose to participate in responsive pricing," said Greg Fergason, demand-side management program manager for E.ON U.S. "The implementation of this variable rate structure will be possible through the use of smart meters, information displays and DSM equipment such as programmable thermostats and load control switches."

"Automation of the usage of these loads will allow Pilot participants to shift usage without manual intervention on a daily basis. Indeed, our investigation for the Pilot indicates that using such technology has been successful resulting in high customer satisfaction and significant shifting of usage from hours of high demand," continued Fergason.

The integrated solution includes the Trilliant AMI Mesh Network, intelligent communications modules enabling smart electric and gas meters, home area network (HAN) devices and hosted software applications. The HAN includes smart thermostats, remote appliance controllers (RAC) and an in-home display (IHD) device that provides usage data obtained from the electric meter (peer-to-peer application). Trilliant bases its mesh wireless technology on the global 2.4GHz (gigahertz) IEEE 802.15.4 standards.

"This is the type of program, combining great technology with smart monitoring of consumer use, that will help us all wisely manage our energy resources in the future. When combined with dynamic pricing and consumer awareness programs, we believe that advanced metering infrastructure provides the foundation for sustainable, sound energy management," said Bill Vogel, president and CEO of Trilliant

For more information on the LG&E Responsive Pricing and Smart Meter Program:
http://www.eon-us.com/newsroom/archive2007/news_071207.asp
http://www.kentucky.gov/Newsroom/psc/pscpr7-12-2007A.htm

About E.ON U.S.
E.ON U.S., headquartered in Louisville, Kentucky, U.S.A., is a diversified energy services company. E.ON U.S. owns and operates Louisville Gas and Electric Company, a regulated utility that serves 318,000 natural gas and 390,000 electric customers in Louisville and 16 surrounding counties, and Kentucky Utilities Company, a regulated electric utility in Lexington, Kentucky, U.S.A., that serves 518,000 customers in 77 Kentucky counties and five counties in Virginia.Trilliant Incorporated, the industry's leading provider of advanced metering infrastructure (AMI) based on open standards, today announced an agreement to supply the Trilliant AMI Mesh Network solution for the "Responsive Pricing and Smart Meter" pilot program to be run by Louisville Gas and Electric (LG&E). LG&E, a subsidiary of E.ON U.S., a member of the world's largest investor owned energy supplier, will open the program to 2000 residential and small commercial volunteer customers encompassing gas and electric metering, energy conservation tools and in-premise displays.

About Trilliant
Trilliant is an industry-leading provider of advanced metering infrastructure (AMI), demand response, and grid management solutions in addition to installation, program management and meter revenue cycle services. With more than 20 years experience delivering meter communications solutions, the company is focused on enabling choice for utilities from meter, network and IT infrastructures to full or hybrid outsource models involving metering services, submetering, AMI system management and data management services. Trilliant has more than 100 utility customers including Duke Energy, E.ON US (Louisville Gas & Electric), Hydro One, Hydro Quebec, Milton Hydro, Northeast Utilities, OneOK, PowerStream, Public Service Electric & Gas, San Diego Gas & Electric, Toronto Hydro Electric System Ltd., and Union Gas. The Company is privately owned. For more information: www.trilliantinc.com.

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