Press Release

Itron and Tendril Join Forces to Smarten the Smart Grid

Agreement will provide tight integration over OpenWay® by Itron and allow Itron to resell Tendril TREE

SAN DIEGO — DistribuTECH 2009 — February 3, 2009 - Itron Inc. (NASDAQ: ITRI) announced today they have entered into a formal agreement with Tendril, a leading provider of demand-side residential energy management solutions for the utility industry, that will extend the reach of the Tendril Residential Energy Ecosystem (TREE) and provide seamless integration with OpenWay.

The agreement will leverage the strength of Itron's industry-leading sales force, which generated more than $1 billion in business in North America during 2008, and allow them to resell Tendril's industry-leading TREE energy management solution to utilities and energy retailers nationwide. Tendril TREE integrates with OpenWay by Itron to support energy management and conservation products and programs. OpenWay is emerging as the advanced metering infrastructure (AMI) solution of choice for measuring, and ultimately managing, energy usage in the 21st century.

The program also includes all points of contact and integration with the TREE Platform, including meter and AMI backhaul technologies, Home Area Network (HAN) device manufacturers, utility billing and customer care systems and other third-party energy management service providers.

"We are very excited to be able to leverage the expertise of the Itron sales force as we continue to extend the reach of our TREE system," said Adrian Tuck, CEO, Tendril Networks Inc. "The years of experience that Itron has selling to utilities and energy retailers makes them an invaluable asset to Tendril."

"We're pleased to work with Tendril to offer utilities and their customers exciting, new ways to manage and conserve energy," said Russ Vanos, Itron vice president of marketing. "Our work with Tendril proves that the interoperability and extensibility of the OpenWay architecture enables a smarter energy system."

About Itron

Itron enables utilities and cities to safely, securely and reliably deliver critical infrastructure solutions to communities in more than 100 countries. Our portfolio of smart networks, software, services, meters and sensors helps our customers better manage electricity, gas and water resources for the people they serve. By working with our customers to ensure their success, we help improve the quality of life, ensure the safety and promote the well-being of millions of people around the globe. Itron is dedicated to creating a more resourceful world. Join us:

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Alison Mallahan

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