Press Release

Itron's Smart Meter Earns First Interoperable Device Interface Specifications Certification

Use of open standards and publically available specifications make interoperability a reality

ISSY-LES-MOULINEAUX, France—September 27, 2011—Itron, Inc. (NASDAQ: ITRI) announced today that it is the first company to earn the IDIS (Interoperable Device Interface Specifications) certification for its electricity smart meter. Following rigorous conformance testing performed by KEMA, an external and accredited laboratory, Itron's smart meter met the strict performance requirements set out by the IDIS association.

Such specifications are important because interoperability between system components is key in all smart metering projects, as its absence often results in the need for new specifications and additional testing to integrate and operate new system components, which can be costly and time-consuming.

The IDIS association develops, maintains and promotes publicly available technical specifications based on open standards, as well as supports the specification implementation in interoperable products. The certification of Itron's smart meter ensures its full interoperability with other smart metering system components that are compliant with the IDIS specifications. This specification and certification is the beginning of a truly interoperable environment, allowing utilities to invest in smart metering with confidence.

"At Itron, we are committed to working toward interoperability. Receiving the first IDIS certification for one of our smart meters shows our determination to close the gaps in standards and move forward in the field," said Jean-François Brun, Itron vice president Global Marketing, Energy. "With IDIS specifications, interoperability is guaranteed, among other things, for meter registration, remote tariff programming, on demand and scheduled meter reading, and firmware update."

Information on IDIS association and specifications are available at:

For additional information about KEMA laboratories:

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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