Attached files

file filename
EX-23 - EX 23 CONSENT - NORTHWESTERN CORPex23-1_consent.htm
EX-21 - EX 21 SUBSIDIARIES - NORTHWESTERN CORPex21_subsidiaries.htm
EX-32.2 - EX 32.2 CERTIFICATION - NORTHWESTERN CORPex32-2_certification.htm
EX-10.2 - EX 10.2 BOND PURCHASE AGREEMENT - NORTHWESTERN CORPex10-2_bondpurchagmt.htm
EX-31.2 - EX 31.2 CERTIFICATION (SECTION 302) - NORTHWESTERN CORPex31-2_certification.htm
EX-12.1 - EX 12.1 EARNINGS TO FIXED CHARGES - NORTHWESTERN CORPex12-1_earningstofixed.htm
10-K - 10-K 12/31/2009 - NORTHWESTERN CORPk10_123109.htm
EX-31.1 - EX 31.2 CERTIFICATION (SECTION 302) - NORTHWESTERN CORPex31-1_certification.htm

EXHIBIT 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of NorthWestern Corporation (the “Company”) on Form 10-K for the period ended December 31, 2009, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert C. Rowe, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:
 
1)  
The Report fully complies with the requirements of Sections 13(a) or 15(d) of the Securities Exchange Act of 1934; 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: February 12, 2010
 
/s/ ROBERT C. ROWE
   
Robert C. Rowe
   
President and Chief Executive Officer