Exhibit 24.1

LIMITED POWER OF ATTORNEY

	The undersigned hereby constitutes and appoints Sophia Lee
with full power of substitution, as the undersigned's true and
lawful attorney-in-fact to:

(1)	prepare, execute in the undersigned's name and
on the undersigned's behalf, and submit to the U.S.
Securities and Exchange Commission (the "SEC") a
Form ID, including amendments thereto, and any
other documents necessary or appropriate to obtain
codes and passwords enabling the undersigned to
make electronic filings with the SEC of reports
required by Section 16(a) of the Securities Exchange
Act of 1934, as amended, or any rule or regulation
of the SEC;

(2)	execute for and on behalf of the undersigned, in the
undersigned's capacity as officer and/or director of
Altus Power, Inc. (the "Company"), Forms 3, 4, 5
and any Schedules 13D or 13G in accordance with
Section 16(a) of the Securities Exchange Act of 1934,
as amended, and the rules thereunder;

(3)	do and perform any and all acts for and on behalf
of the undersigned that may be necessary or desirable
to complete and execute any such Form 3, 4, or 5 or
Schedule 13D or 13G, complete and execute any
amendment or amendments thereto, and timely file such
form with the SEC and any stock exchange or similar
authority; and

(4)	take any other action of any type whatsoever in
connection with the foregoing that, in the opinion of
each such attorney-in-fact, may be of benefit to, in the
best interest of, or legally required by, the undersigned,
it being understood that the documents executed by each
such attorney-in-fact on behalf of the undersigned
pursuant to this Power of Attorney shall be in such form
and shall contain such terms and conditions as each such
attorney-in-fact may approve in each such
attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the exercise of
any of the rights and powers herein granted, as fully to all intents and
purposes as the undersigned might or could do if personally present, with
full power of substitution or revocation, hereby ratifying and confirming
all that each such attorney-in-fact, or each such attorney-in-fact's
substitute or substitutes, shall lawfully do or cause to be done by
virtue of this power of attorney and the rights and powers herein
granted.  The undersigned acknowledges that each foregoing
attorney-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming,
any of the undersigned's responsibilities to comply with Section
16 of the Securities Exchange Act of 1934, as amended.

       This Power of Attorney shall remain in full force and effect until
the undersigned is no longer required to file Forms 3, 4, 5, and any
Schedules 13D or 13G with respect to the undersigned's holdings of and
transactions in securities issued by the Company, unless earlier revoked
by the undersigned in a signed writing delivered to each foregoing
attorney-in-fact.

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       IN WITNESS WHEREOF, the undersigned has caused this
Power of Attorney to be executed as of this 16th  day of February, 2022.


		/s/ William Concannon
		Name: William Concannon