NorthWestern Energy Electric Monthly Supply Rates
 New Rate Effective Date February 1, 2011
Electric Residential  
Electric Lighting
Effective Date
Price/kWh
 
Change
  Effective Date
Price/KWh
 
Change
March 01, 2011 $0.062537
    $ 0.062537   March 01, 2011 $ 0.058864
    $ 0.058864
April 01, 2011 $0.062129
    $(0.000408)   April 01, 2011 $ 0.058495
    $(0.000369)
May 01, 2011 $0.061003
    $(0.001126)   May 01, 2011 $ 0.057360
    $(0.001135)
June 01, 2011 $0.060706
    $(0.000297)   June 01, 2011 $ 0.057092
    $(0.000268)
July 01, 2011 $0.061023
    $ 0.000317   July 01, 2011 $ 0.057401
    $ 0.000309
August 01, 2011 $0.061258
    $ 0.000235   August 01, 2011 $ 0.057614
    $ 0.000213
September 01, 2011 $0.061090
    $(0.000168)   September 01, 2011 $ 0.057462
    $(0.000152)
October 01, 2011 $0.060819
    $(0.000271)   October 01, 2011 $ 0.057217
    $(0.000245)
November 01, 2011 $0.060451
    $(0.000368)   November 01, 2011 $ 0.056884
    $(0.000333)
December 01, 2011 $0.060640
    $ 0.000189   December 01, 2011 $ 0.057055
    $ 0.000171
January 01, 2012 $0.060895
    $ 0.000255   January 01, 2012 $ 0.057292
    $ 0.000237
February 01, 2012 $0.060867
    $(0.000028)   February 01, 2012 $ 0.057267
    $(0.000025)
                  
General Service 1 Secondary Non Demand  
General Service 1 Secondary Demand
Effective Date
Price/kWh
 
Change
  Effective Date
Price/KWh
 
Change
March 01, 2011 $0.058864
    $ 0.058864   March 01, 2011 $ 0.062537
    $ 0.062537
April 01, 2011 $0.058495
    $(0.000369)   April 01, 2011 $ 0.062129
    $(0.000408)
May 01, 2011 $0.057360
    $(0.001135)   May 01, 2011 $ 0.061003
    $(0.001126)
June 01, 2011 $0.057092
    $(0.000268)   June 01, 2011 $ 0.060706
    $(0.000297)
July 01, 2011 $0.057401
    $ 0.000309   July 01, 2011 $ 0.061023
    $ 0.000317
August 01, 2011 $0.057614
    $ 0.000213   August 01, 2011 $ 0.061258
    $ 0.000235
September 01, 2011 $0.057462
    $(0.000152)   September 01, 2011 $ 0.061090
    $(0.000168)
October 01, 2011 $0.057217
    $(0.000245)   October 01, 2011 $ 0.060819
    $(0.000271)
November 01, 2011 $0.056884
    $(0.000333)   November 01, 2011 $ 0.060451
    $(0.000368)
December 01, 2011 $0.057055
    $ 0.000171   December 01, 2011 $ 0.060640
    $ 0.000189
January 01, 2012 $0.057292
    $ 0.000237   January 01, 2012 $ 0.060895
    $ 0.000255
February 01, 2012 $0.057267
    $(0.000025)   February 01, 2012 $ 0.060867
    $(0.000028)
                  
General Service 1 Primary Non Demand  
General Service 1 Primary Demand
Effective Date
Price/kWh
 
Change
  Effective Date
Price/KWh
 
Change
March 01, 2011 $0.060822
    $ 0.060822   March 01, 2011 $ 0.057206
    $ 0.057206
April 01, 2011 $0.060425
    $(0.000397)   April 01, 2011 $ 0.057206
    $ 0.000000
May 01, 2011 $0.059330
    $(0.001095)   May 01, 2011 $ 0.056103
    $(0.001103)
June 01, 2011 $0.059041
    $(0.000289)   June 01, 2011 $ 0.055840
    $(0.000263)
July 01, 2011 $0.059349
    $ 0.000308   July 01, 2011 $ 0.056141
    $ 0.000301
August 01, 2011 $0.059578
    $ 0.000229   August 01, 2011 $ 0.056350
    $ 0.000209
September 01, 2011 $0.059415
    $(0.000163)   September 01, 2011 $ 0.056201
    $(0.000149)
October 01, 2011 $0.059151
    $(0.000264)   October 01, 2011 $ 0.055960
    $(0.000241)
November 01, 2011 $0.058794
    $(0.000357)   November 01, 2011 $ 0.055634
    $(0.000326)
December 01, 2011 $0.058977
    $ 0.000183   December 01, 2011 $ 0.055802
    $ 0.000168
January 01, 2012 $0.059225
    $ 0.000248   January 01, 2012 $ 0.056033
    $ 0.000231
February 01, 2012 $0.059198
    $(0.000027)   February 01, 2012 $ 0.056009
    $(0.000024)
                  
Irrigation Non Demand  
Irrigation Demand
Effective Date
Price/kWh
 
Change
  Effective Date
Price/KWh
 
Change
March 01, 2011 $0.058864
    $ 0.058864   March 01, 2011 $ 0.058864
    $ 0.058864
April 01, 2011 $0.058495
    $(0.000369)   April 01, 2011 $ 0.058495
    $(0.000369)
May 01, 2011 $0.057360
    $(0.001135)   May 01, 2011 $ 0.057360
    $(0.001135)
June 01, 2011 $0.057092
    $(0.000268)   June 01, 2011 $ 0.057092
    $(0.000268)
July 01, 2011 $0.057401
    $ 0.000309   July 01, 2011 $ 0.057401
    $ 0.000309
August 01, 2011 $0.057614
    $ 0.000213   August 01, 2011 $ 0.057614
    $ 0.000213
September 01, 2011 $0.057462
    $(0.000152)   September 01, 2011 $ 0.057462
    $(0.000152)
October 01, 2011 $0.057217
    $(0.000245)   October 01, 2011 $ 0.057217
    $(0.000245)
November 01, 2011 $0.056884
    $(0.000333)   November 01, 2011 $ 0.056884
    $(0.000333)
December 01, 2011 $0.057055
    $ 0.000171   December 01, 2011 $ 0.057055
    $ 0.000171
January 01, 2012 $0.057292
    $ 0.000237   January 01, 2012 $ 0.057292
    $ 0.000237
February 01, 2012 $0.057267
    $(0.000025)   February 01, 2012 $ 0.057267
    $(0.000025)
                  
GS-2 Substation  
GS-2 Transmission
Effective Date
Price/kWh
 
Change
  Effective Date
Price/KWh
 
Change
March 01, 2011 $0.060300
    $ 0.060300   March 01, 2011 $ 0.059938
    $ 0.059938
April 01, 2011 $0.059906
    $(0.000394)   April 01, 2011 $ 0.059546
    $(0.000392)
May 01, 2011 $0.058820
    $(0.001086)   May 01, 2011 $ 0.058467
    $(0.001079)
June 01, 2011 $0.058534
    $(0.000286)   June 01, 2011 $ 0.058183
    $(0.000284)
July 01, 2011 $0.058839
    $ 0.000305   July 01, 2011 $ 0.058487
    $ 0.000304
August 01, 2011 $0.059066
    $ 0.000227   August 01, 2011 $ 0.058712
    $ 0.000225
September 01, 2011 $0.058904
    $(0.000162)   September 01, 2011 $ 0.058551
    $(0.000161)
October 01, 2011 $0.058643
    $(0.000261)   October 01, 2011 $ 0.058291
    $(0.000260)
November 01, 2011 $0.058289
    $(0.000354)   November 01, 2011 $ 0.057938
    $(0.000353)
December 01, 2011 $0.058471
    $ 0.000182   December 01, 2011 $ 0.058119
    $ 0.000181
January 01, 2012 $0.058717
    $ 0.000246   January 01, 2012 $ 0.058363
    $ 0.000244
February 01, 2012 $0.058690
    $(0.000027)   February 01, 2012 $ 0.058337
    $(0.000026)
                  
Electric supply rates change monthly based on current projected 12-month market prices. The revenues collected compared to actual costs incurred by NWE are trued up on an annual basis. NWE purchases wholesale electricity from producers and passes the cost directly to customers without markup.