Exhibit 99.1

CERTIFICATION OF ECHELON CORPORATION CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, M. Kenneth Oshman, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Echelon Corporation on Form 10-Q for the quarterly period ended September 30, 2002 (“the 10-Q Report”):

(a)  fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(b)  the information contained in such 10-Q Report fairly presents, in all material respects, the financial condition and results of operations of Echelon Corporation.

ECHELON CORPORATION
By:	/s/    M. KENNETH OSHMAN         M. Kenneth Oshman, Chairman of the Board and Chief Executive Officer (Principal Executive Officer)

Date:  November 13, 2002