Power of Attorney

I, Ronald N. Darnell, reside at 13201 Pine Forest Place NE, Albuquerque,
New Mexico 87111. I appoint Laurie S. Monfiletto, Vice President,
Human Resources, Corporate Headquarters, MS-0705, Albuquerque,
New Mexico 87158; Angela Pino, Manager, Compensation, Corporate
Headquarters, MS-0755, Albuquerque, New Mexico 87158;
or Donna Briggs, Administrator III, Corporate Headquarters, MS-0705,
Albuquerque, New Mexico 87158 to serve as my attorneys-in-fact to:

	(1)	execute for me in my capacity as an Officer of
	PNM Resources, Inc. (Company), Forms 3, 4, and 5 in accordance
	with Section 16(a) of the Securities Exchange Act of 1934
	(1934 Act) and the associated rules;

	(2)	perform for me all acts which may be necessary
	or desirable to complete and execute Forms 3, 4, and 5,
	complete and execute any amendments, and timely file the
	forms with the United States Securities and Exchange Commission
	and the New York Stock Exchange, or similar authority; or

	(3)	take any other action related to the powers identified
	in items (1) and (2), which, in the opinion of the attorneys-in-fact,
	may be legally required or beneficial to me.

	I acknowledge that the attorneys-in-fact are serving at my request
and neither they nor the Company are assuming any of my responsibilities to
comply with Section 16 of the 1934 Act. This Power of Attorney shall remain
in full force and effect until I am no longer required to file Forms 3, 4,
and 5 with respect to my holdings of and transactions in securities issued
by the Company, unless earlier revoked by me in a signed writing delivered
to the attorneys-in-fact.


				/s/ Ronald N. Darnell
				Ronald N. Darnell

			ACKNOWLEDGEMENT

State of New Mexico		)
				) ss.
County of Bernalillo		)

	The foregoing instrument was acknowledged before me on February 24,
2016 by Ronald N. Darnell.

				/s/Susan G. Gordon
				Notary Public

				My Commission Expires: September 12, 2016