Limited Power of Attorney for
Section 16 Reporting Obligations


To:  	Mark McKinnies
	Chief Financial Officer
	ADA-ES, Inc.
	8100 SouthPark Way, Unit B
       Littleton, CO  80120

I, Richard L. Miller, hereby authorize ADA-ES, Inc., through its agents or
employees, as my true and lawful attorneys-in-fact, with full power and
authority as hereinafter described on behalf of and in the name, place
and stead of the undersigned to:

(1)	prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5
(including any amendments thereto) with respect to the securities of ADA-ES,
Inc., a Colorado corporation (the "Company"), with the U.S. Securities and
Exchange Commission, any national securities exchanges and the Company, as
considered necessary or advisable under Section 16(a) of the Securities
Exchange Act of 1934 and the rules and regulations promulgated thereunder,
as amended from time to time (the "Exchange Act");

(2)	seek or obtain, as the undersigned's representative and on
the undersigned's behalf, information on transactions in the Company's
securities from any third party, including brokers, employee benefit
plan administrators and trustees, and the undersigned hereby authorizes
any such person to release any such information to the undersigned and
approves and ratifies any such release of information; and

(3)	perform any and all other acts which in the discretion of such
attorney-in-fact are necessary or desirable for and on behalf
of the undersigned in connection with the foregoing.

The undersigned acknowledges that:

(1)	this Power of Attorney authorizes, but does not require, such
attorney-in-fact to act in their discretion on information provided to such
attorney-in-fact without independent verification of such information;

(2)	any documents prepared and/or executed by such attorney-in-fact
on behalf of the undersigned pursuant to this Power of Attorney
will be in such form and will contain such information and
disclosure as such attorney-in-fact, in his or
her discretion, deems necessary or desirable;

(3)	neither the Company nor such attorney-in-fact assumes (i) any liability
for the undersigned's responsibility to comply with the requirement of the
Exchange Act, (ii) any liability of the undersigned for any failure to comply
with such requirements, or (iii) any obligation or liability of the undersigned
for profit disgorgement under Section 16(b) of the Exchange Act; and

(4)	this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under the
Exchange Act, including without limitation the
reporting requirements under Section 16 of the Exchange Act.

	The undersigned hereby gives and grants the foregoing
attorney-in-fact full power and authority to do and perform
all and every act and thing whatsoever requisite, necessary
or appropriate to be done in and about the foregoing matters
as fully to all intents and purposes as the undersigned might
or could do if present, hereby ratifying all that such attorney-in-fact
of, for and on behalf of the undersigned, shall lawfully do or cause
to be done by virtue of this Limited Power of Attorney.

	This Power of Attorney shall remain in full force and effect
until revoked by the undersigned in a signed writing delivered
to such attorney-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 13th day of July, 2006.


				Signed: ______/s/_______

				Print:  Richard L. Miller

				Dated:  July 13, 2006


STATE OF Colorado			)
					)
County of Douglas			)

Subscribed and Sworn to before me this 13th day of July, 2006,
by Richard L. Miller.

						________/s/____________
							Notary Public

My Commission expires:___10/1/2007____

