LIMITED POWER OF ATTORNEY SECURITIES LAW COMPLIANCE

The undersigned, as an officer or director of Echelon Corporation (the Corporation),
hereby constitutes and appoints C. Michael Marszewski, Ronald Sege, and Rebecca Baybrook
and each of them, the undersigned's true and lawful
attorney-in-fact and agent to complete and execute such Forms 144, Form ID, Forms 3, 4
and 5 and other forms as such attorney shall in his or her discretion determine to be
required or advisable pursuant to Rule 144 promulgated under the Securities Act of 1933,
as amended, Section 16 of the Securities Exchange Act of 1934, as amended, and the
rules and regulations promulgated thereunder, or any successor laws and regulations, as a
consequence of the undersigned's ownership, acquisition or disposition of securities of
the Corporation, and to do all acts necessary in order to file such forms with the
Securities and Exchange Commission, any securities exchange or national association,
the Corporation and such other person or agency as the attorney shall deem appropriate.
The undersigned hereby ratifies and confirms all that said attorneys-in-fact and agents
shall do or cause to be done by virtue hereof.

This Limited Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the
Corporation unless earlier revoked by the undersigned in a writing delivered to the
foregoing attorneys-in-fact.

This Limited Power of Attorney is executed at San Jose, CA, as of the date set forth
below.

          Signature: /s/ William R. Slakey
          Print Name: William R. Slakey
          Dated: 6/7/2013
Witness: /s/ Marsha Larsen
Print Name: Marsha Larsen

Dated: 6/7/2013 STATE OF CALIFORNIA
COUNTY OF Santa Clara

On June 7, 2013, before me, Ariel Kim, Notary Public, personally appeared
William R. Slakey, who proved to me on the basis of satisfactory
evidence to be the Person(s) whose name(s) is/are subscribed to the within
instrument and acknowledged to me that he/she/they executed the same in
his authorized capacity(ies), and that by his/her/they signature(s) on the
instrument the person(s), or the entity upon behalf of which the person(s) acted,
executed the instrument.

I certify under PENALTY OF PERJURY under the laws of the State of California that
the foregoing paragraph is true and correct.

WITNESS my hand and official seal.

Signature: /s/ Ariel Earnfar Kim
Notary Public

ECHELON CORP 4