Texas-New Mexico Power Company

577 N. Garden Ridge Blvd.

Lewisville, Texas 75067

EXHIBIT 32.3

CERTIFICATION PURSUANT TO 18 U.S.C. § 1350, AS ADOPTED PURSUANT TO § 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q for the period ended March 31, 2011, for Texas-New Mexico Power Company (“Company”), as filed with the Securities and Exchange Commission on May 6, 2011 (“Report”), each of the undersigned officers of the Company certifies, pursuant to 18 U.S.C. §1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Report fully complies with the requirements of § 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 6, 2011	By:	/s/ Patricia K. Collawn
		Patricia K. Collawn
		President and Chief Executive Officer
		Texas-New Mexico Power Company
	By:	/s/ Thomas G. Sategna
		Thomas G. Sategna
		Vice President, Controller
		Texas-New Mexico Power Company