Echelon Corporation to Announce Q1 2005 Results April 20th, 2005; To C

    Business Editors/High-Tech Writers

    SAN JOSE, Calif.--(BUSINESS WIRE)--April 18, 2005--Echelon Corporation (Nasdaq:ELON) will be holding its quarterly earnings conference call for investors and analysts on April 20th, 2005 at 2:00 pm PT. The earnings announcement itself is scheduled to cross the wire shortly after 1:00 pm PT. Echelon is sending out this release regarding Q1, 2005 only to comply with Federal Regulation FD.
    Financial analysts will be notified by fax which toll-free number they should call to access the Q1, 2005 conference call. Other interested parties may listen in on the conference call via live webcast at http://www.echelon.com. Alternatively, the general public may also access the call at or 800-467-8998 (callers outside the US please use +1-312-461-9296); however, due to a limited number of available phone lines, the company asks that only those persons without web access call this number.

    About Echelon Corporation

    Echelon Corporation (Nasdaq:ELON) is a pioneer and world leader in control networking -- networks that connect machines and other electronic devices -- for the purpose of sensing, monitoring and controlling the world around us. Echelon's component and system-level hardware and software products are used by OEMs, VARs, system integrators, utilities -- and virtually every class of institution -- to design, build, deploy and/or operate robust, scaleable, standards-based control networks and devices. Echelon technology can be found in thermostats, light switches and controllers, electricity meters, appliances, heating and air-conditioning systems, traffic signals, trains, aircraft, factories, and buildings -- in more than 50 million "smart" devices made by thousands of manufacturers. Further information regarding Echelon can be found at http://www.echelon.com.

    Echelon, LonWorks, and the Echelon logo are trademarks of Echelon Corporation registered in the United States and other countries. Other marks belong to their respective holders.

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CONTACT: Echelon Corporation Steve Nguyen, 408-938-5272 (Press) qnguyen@echelon.com Chris Stanfield, 408-938-5243 (Investor Relations) cstanfield@echelon.com

KEYWORD: CALIFORNIA INDUSTRY KEYWORD: HARDWARE SOFTWARE NETWORKING ADVISORY CONFERENCE CALLS SOURCE: Echelon Corporation

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