Energy Adjustment and Riders

Minnesota electric service statements include an Energy Adjustment and a Resource Adjustment, which includes five costs. For more information than what you find on this page, please refer to specific rate schedules.

Beginning July 1, 2022, Energy Adjustment rates reflect revised Service Categories and Energy Adjustment Factor ratios as approved by the Minnesota Public Utilities Commission in our 2020 Minnesota Rate Review (Docket No. E017/GR-20-719 Application of Otter Tail Power Company for Authority to Increase Rates for Electric Service in Minnesota).   

Once a year, we compare actual costs to forecasted costs for the prior calendar year and compute a rate that trues-up the difference.

For the 12 months ending December 31, 2021, the true-up rate is a charge of $.0008 per kilowatt-hour. The Minnesota Public Utilities Commission approved the charge and the collection time frame of September 1 through December 31, 2022, in their July 5, 2022, Order in Docket No. E017/AA-20-462.  This charge is part of the monthly Energy Adjustment on customers bills.

September through December 2022 rates have been revised to reflect forecasted changes in costs. These rates are provisionally implemented and subject to true-up by the Minnesota Public Utilities Commission.

Service category

Residential

2023
Residential
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023 $ .03132 per kWh  
November 1, 2023 $ .02918 per kWh  
October 1, 2023 $ .02409 per kWh  
September 1, 2023  $ .02352 per kWh  
August 1, 2023  $ .02589 per kWh  
July 1, 2023  $ .02250 per kWh  
June 1, 2023  $ .02639 per kWh  
May 1, 2023  $ .02211 per kWh  
April 1, 2023  $ .02208 per kWh  
March 1, 2023     $ .03040 per kWh  
February 1, 2023   $ .03317 per kWh  
January 1, 2023  $ .03599 per kWh  
2022
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02645 per kWh 
 November 1, 2022 $ .02947 per kWh 
 October 1, 2022 $ .03197 per kWh 
 September 1, 2022 $ .02443 per kWh 
 August 1, 2022 $ .02310 per kWh 
 July 1, 2022 $ .02190 per kWh 

Farm

2023
Farm
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .03051 per kWh  
November 1, 2023  $ .02842 per kWh  
October 1, 2023  $ .02346 per kWh  
September 1, 2023  $ .02291 per kWh  
August 1, 2023  $ .02521 per kWh  
July 1, 2023  $ .02192 per kWh  
June 1, 2023  $ .02570 per kWh  
May 1, 2023  $ .02154 per kWh  
April 1, 2023  $ .02151 per kWh  
March 1, 2023  $ .02961 per kWh  
February 1, 2023  $ .03231 per kWh  
January 1, 2023 $ .03505 per kWh  
2022
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02576 per kWh  
 November 1, 2022 $ .02870 per kWh  
 October 1, 2022 $ .03114 per kWh  
 September 1, 2022 $ .02379 per kWh  
 August 1, 2022 $ .02250 per kWh  
 July 1, 2022 $ .02134 per kWh  

General Service

2023
General Service
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .03105 per kWh  
November 1, 2023  $ .02892 per kWh  
October 1, 2023  $ .02388 per kWh  
September 1, 2023  $ .02331 per kWh  
August 1, 2023  $ .02566 per kWh  
July 1, 2023  $ .02230 per kWh  
June 1, 2023  $ .02616 per kWh  
May 1, 2023  $ .02191 per kWh  
April 1, 2023  $ .02189 per kWh  
March 1, 2023  $ .03013 per kWh  
February 1, 2023  $ .03288 per kWh  
January 1, 2023 $ .03567 per kWh  
2022
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02622 per kWh  
 November 1, 2022 $ .02921 per kWh  
 October 1, 2022 $ .03169 per kWh  
 September 1, 2022 $ .02421 per kWh  
 August 1, 2022 $ .02290 per kWh  
 July 1, 2022 $ .02171 per kWh  

Large General Service - Non Time of Day

2023
Large General Service - Non Time of Day
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .03029 per kWh  
November 1, 2023  $ .02822 per kWh  
October 1, 2023  $ .02330 per kWh  
September 1, 2023  $ .02274 per kWh  
August 1, 2023  $ .02503 per kWh  
July 1, 2023  $ .02176 per kWh  
June 1, 2023  $ .02552 per kWh  
May 1, 2023  $ .02138 per kWh  
April 1, 2023  $ .02135 per kWh  
March 1, 2023  $ .02940 per kWh  
February 1, 2023  $ .03208 per kWh  
January 1, 2023 $ .03480 per kWh  
2022
Large General Service - Non Time of Day
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02558 per kWh  
 November 1, 2022 $ .02850 per kWh  
 October 1, 2022 $ .03092 per kWh  
 September 1, 2022 $ .02362 per kWh  
 August 1, 2022 $ .02234 per kWh  
 July 1, 2022 $ .02118 per kWh  

Large General Service - Time of Day

2023
Large General Service - Time of Day
  Class Energy Adjustment Factor (EAF)
Effective Date On-Peak Shoulder Off-Peak
December 1, 2023  $ .03761 per kWh   $ .03296 per kWh   $ .02522 per kWh 
November 1, 2023  $ .03504 per kWh  $ .03071 per kWh  $ .02350 per kWh
October 1, 2023  $ .02893 per kWh   $ .02535 per kWh   $ .01940 per kWh 
September 1, 2023  $ .02822 per kWh  $ .02218 per kWh  $ .01537 per kWh
August 1, 2023  $ .03106 per kWh  $ .02442 per kWh  $ .01691 per kWh
July 1, 2023  $ .02700 per kWh  $ .02122 per kWh  $ .01470 per kWh
June 1, 2023  $ .03167 per kWh  $ .02489 per kWh  $ .01724 per kWh
May 1, 2023  $ .02655 per kWh  $ .02326 per kWh  $ .01780 per kWh
April 1, 2023  $ .02651 per kWh   $ .02323 per kWh   $ .01778 per kWh 
March 1, 2023  $ .03650 per kWh   $ .03199 per kWh   $ .02448 per kWh 
February 1, 2023  $ .03983 per kWh   $ .03491 per kWh   $ .02671 per kWh 
January 1, 2023  $ .04321 per kWh   $ .03787 per kWh   $ .02898 per kWh 
2022
Large General Service - Time of Day
  Class Energy Adjustment Factor (EAF)
Effective Date On-Peak Shoulder Off-Peak
December 1, 2022  $ .03176 per kWh   $ .02783 per kWh   $ .02130 per kWh 
November 1, 2022  $ .03538 per kWh   $ .03101 per kWh   $ .02373 per kWh 
October 1, 2022  $ .03839 per kWh   $ .03364 per kWh   $ .02574 per kWh 
September 1, 2022  $ .02931 per kWh   $ .02304 per kWh   $ .01596 per kWh 
August 1, 2022  $ .02772 per kWh   $ .02179 per kWh   $ .01509 per kWh 
July 1, 2022  $ .02628 per kWh   $ .02066 per kWh   $ .01431 per kWh 

Irrigation Service

2023
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .02745 per kWh  
November 1, 2023  $ .02557 per kWh  
October 1, 2023  $ .02111 per kWh  
September 1, 2023  $ .02061 per kWh  
August 1, 2023  $ .02269 per kWh  
July 1, 2023  $ .01972 per kWh  
June 1, 2023  $ .02313 per kWh  
May 1, 2023  $ .01938 per kWh  
April 1, 2023  $ .01935 per kWh  
March 1, 2023  $ .02664 per kWh  
February 1, 2023  $ .02907 per kWh  
January 1, 2023 $ .03154 per kWh  
2022
Irrigation Services
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02318 per kWh  
 November 1, 2022 $ .02583 per kWh  
 October 1, 2022 $ .02802 per kWh  
 September 1, 2022 $ .02141 per kWh  
 August 1, 2022 $ .02025 per kWh  
 July 1, 2022 $ .01920 per kWh  

Outdoor Lighting

2023
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .02566 per kWh  
November 1, 2023  $ .02390 per kWh  
October 1, 2023  $ .01973 per kWh  
September 1, 2023  $ .01926 per kWh  
August 1, 2023  $ .02120 per kWh  
July 1, 2023  $ .01843 per kWh  
June 1, 2023  $ .02162 per kWh  
May 1, 2023  $ .01811 per kWh  
April 1, 2023  $ .01809 per kWh  
March 1, 2023  $ .02490 per kWh  
February 1, 2023  $ .02717 per kWh  
January 1, 2023 $ .02948 per kWh  
2022
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02166 per kWh  
 November 1, 2022 $ .02414 per kWh  
 October 1, 2022 $ .02619 per kWh  
 September 1, 2022 $ .02001 per kWh  
 August 1, 2022 $ .01892 per kWh  
 July 1, 2022 $ .01794 per kWh  

OPA (Municipal Pumping)

2023
OPA (Municipal Pumping)
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .03030 per kWh  
November 1, 2023  $ .02823 per kWh  
October 1, 2023  $ .02330 per kWh  
September 1, 2023  $ .02275 per kWh  
August 1, 2023  $ .02504 per kWh  
July 1, 2023  $ .02177 per kWh  
June 1, 2023  $ .02553 per kWh  
May 1, 2023  $ .02139 per kWh  
April 1, 2023  $ .02136 per kWh  
March 1, 2023  $ .02941 per kWh  
February 1, 2023   $ .03209 per kWh  
January 1, 2023 $ .03481 per kWh  
2022
OPA (Municipal Pumping)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02559 per kWh 
 November 1, 2022 $ .02851 per kWh 
 October 1, 2022 $ .03093 per kWh 
 September 1, 2022 $ .02363 per kWh 
 August 1, 2022 $ .02235 per kWh 
 July 1, 2022 $ .02119 per kWh 

Controlled Service Deferred Load

2023
Controlled Service Deferred Load
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .02823 per kWh  
November 1, 2023  $ .02630 per kWh  
October 1, 2023  $ .02171 per kWh  
September 1, 2023  $ .02120 per kWh  
August 1, 2023  $ .02333 per kWh  
July 1, 2023  $ .02028 per kWh  
June 1, 2023  $ .02379 per kWh  
May 1, 2023  $ .01993 per kWh  
April 1, 2023  $ .01990 per kWh  
March 1, 2023  $ .02740 per kWh  
February 1, 2023  $ .02990 per kWh  
January 1, 2023 $ .03244 per kWh  
2022
Controlled Service Deferred Load
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02384 per kWh 
 November 1, 2022 $ .02656 per kWh 
 October 1, 2022 $ .02882 per kWh 
 September 1, 2022 $ .02201 per kWh 
 August 1, 2022 $ .02082 per kWh 
 July 1, 2022 $ .01974 per kWh 

Controlled Service Interruptible

2023
Controlled Service Interruptible
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .02933 per kWh  
November 1, 2023  $ .02733 per kWh  
October 1, 2023  $ .02256 per kWh  
September 1, 2023  $ .02202 per kWh  
August 1, 2023  $ .02424 per kWh  
July 1, 2023  $ .02107 per kWh  
June 1, 2023  $ .02471 per kWh  
May 1, 2023  $ .02070 per kWh  
April 1, 2023  $ .02068 per kWh  
March 1, 2023  $ .02847 per kWh  
February 1, 2023  $ .03106 per kWh  
January 1, 2023 $ .03370 per kWh  
2022
Controlled Service Interruptible
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02477 per kWh 
 November 1, 2022 $ .02759 per kWh 
 October 1, 2022 $ .02994 per kWh 
 September 1, 2022 $ .02287 per kWh 
 August 1, 2022 $ .02163 per kWh 
 July 1, 2022 $ .02051 per kWh 

Controlled Service Off-Peak

2023
Controlled Service Off-Peak
Effective Date Class Energy Adjustment Factor (EAF)
December 1, 2023  $ .02720 per kWh  
November 1, 2023  $ .02534 per kWh  
October 1, 2023  $ .02092 per kWh  
September 1, 2023  $ .02042 per kWh  
August 1, 2023  $ .02247 per kWh  
July 1, 2023  $ .01954 per kWh  
June 1, 2023  $ .02291 per kWh  
May 1, 2023  $ .01920 per kWh  
April 1, 2023  $ .01917 per kWh  
March 1, 2023 $ .02640 per kWh  
February 1, 2023  $ .02880 per kWh  
January 1, 2023 $ .03125 per kWh  
2022
Controlled Service Off-Peak
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2022 $ .02297 per kWh 
 November 1, 2022 $ .02559 per kWh 
 October 1, 2022 $ .02776 per kWh 
 September 1, 2022 $ .02121 per kWh 
 August 1, 2022 $ .02006 per kWh 
 July 1, 2022 $ .01902 per kWh 

Beginning January 1, 2021, Energy Adjustment rates include all forecasted costs of fuel to generate electricity to serve our retail customers, forecasted transportation costs for that fuel, and forecasted costs we'll incur to buy energy to supplement our own power plants.  Base rates no longer include recovery of a portion of fuel and purchased energy costs.  All fuel and purchased energy costs are recovered through the rates below.  Prior to January 1, 2021, a portion of fuel and purchased energy costs were recovered through base rates.

Service category

Residential

2022
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .02142 per kWh   
 May 1, 2022 $ .02166 per kWh   
 April 1, 2022 $ .02243 per kWh   
 March 1, 2022 $ .02250 per kWh   
 February 1, 2022 $ .02489 per kWh   
 January 1, 2022 $ .02144 per kWh   
2021
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .02214 per kwh  
 November 1, 2021 $ .02231 per kwh  
 October 1, 2021 $ .02138 per kwh  
 September 1, 2021 $ .02094 per kwh  
 August 1, 2021 $ .02393 per kwh  
 July 1, 2021 $ .02205 per kwh  
 June 1, 2021 $ .01520 per kwh  
 May 1, 2021 $ .01434 per kwh  
 April 2, 2021 $ .01404 per kwh  
 March 2, 2021 $ .01578 per kwh  
 February 1, 2021 $ .01696 per kwh  
 January 4, 2021 $ .01507 per kwh  

 

2020
Residential
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00144 per kwh 
 November 2, 2020 -$ .00272 per kwh 
 October 2, 2020 -$ .00015 per kwh 
 September 1, 2020 -$ .00573 per kwh 
 August 3, 2020 -$ .00410 per kwh 
 July 2, 2020 -$ .00420 per kwh 
 June 2, 2020 -$ .00032 per kwh 
 May 1, 2020 -$ .00003 per kwh 
 April 2, 2020 $ .00107 per kwh 
 March 3, 2020 $ .00056 per kwh 
 February 3, 2020 $ .00296 per kwh 
 January 3, 2020 $ .00373 per kwh 

 

2019
Residential
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00362 per kwh
November 1, 2019 -$ .00368 per kwh
October 2, 2019 $ .00404 per kwh
September 3, 2019 $ .00331 per kwh
August 2, 2019 -$ .00354 per kwh
July 2, 2019 -$ .00187 per kwh
June 3, 2019 -$ .00035 per kwh
May 2, 2019 -$ .00070 per kwh
April 3, 2019 -$ .00168 per kwh
March 6, 2019 -$ .00050 per kwh
February 8, 2019 $ .00439 per kwh
January 4, 2019 $ .00567 per kwh

 

Farm

2022
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .02070 per kWh  
 May 1, 2022 $ .02093 per kWh  
 April 1, 2022 $ .02167 per kWh  
 March 1, 2022 $ .02174 per kWh  
 February 1, 2022 $ .02405 per kWh  
 January 1, 2022 $ .02071 per kWh  
2021
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .02139 per kwh  
 November 1, 2021 $ .02156 per kwh  
 October 1, 2021 $ .02066 per kwh  
 September 1, 2021 $ .02024 per kwh  
 August 1, 2021 $ .02312 per kwh  
 July 1, 2021 $ .02131 per kwh  
 June 1, 2021 $ .01469 per kwh  
 May 1, 2021 $ .01386 per kwh  
 April 2, 2021 $ .01357 per kwh  
 March 2, 2021 $ .01524 per kwh  
 February 1, 2021 $ .01638 per kwh  
 January 4, 2021 $ .01456 per kwh  

 

2020
Farm
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00139 per kwh  
 November 2, 2020 -$ .00263 per kwh  
 October 2, 2020 -$ .00015 per kwh  
 September 1, 2020 -$ .00554 per kwh  
 August 3, 2020 -$ .00396 per kwh  
 July 2, 2020 -$ .00406 per kwh  
 June 2, 2020 -$ .00031 per kwh  
 May 1, 2020 -$ .00003 per kwh  
 April 2, 2020 $ .00104 per kwh  
 March 3, 2020 $ .00054 per kwh  
 February 3, 2020 $ .00286 per kwh  
January 3, 2020  $ .00361 per kwh  

 

2019
Farm
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00350 per kwh
November 1, 2019 -$ .00356 per kwh
October 2, 2019 $ .00390 per kwh
September 3, 2019 $ .00320 per kwh
August 2, 2019 -$ .00342 per kwh
July 2, 2019 -$ .00181 per kwh
June 3, 2019 -$ .00033 per kwh
May 2, 2019 -$ .00068 per kwh
April 3, 2019 -$ .00162 per kwh
March 6, 2019 -$ .00048 per kwh
February 8, 2019 $ .00424 per kwh
January 4, 2019 $ .00567 per kwh

 

General Service

2022
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .02090 per kWh  
 May 1, 2022 $ .02113 per kWh  
 April 1, 2022 $ .02188 per kWh  
 March 1, 2022 $ .02195 per kWh  
 February 1, 2022 $ .02428 per kWh  
 January 1, 2022 $ .02091 per kWh  
2021
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021  $ .02160 per kwh  
 November 1, 2021 $ .02176 per kwh  
 October 1, 2021  $ .02086 per kwh  
 September 1, 2021 $ .02043 per kwh  
 August 1, 2021  $ .02334 per kwh  
 July 1, 2021 $ .02151 per kwh  
 June 1, 2021  $ .01483 per kwh  
 May 1, 2021 $ .01399 per kwh  
 April 2, 2021   $ .01370 per kwh  
 March 2, 2021 $ .01539 per kwh  
 February 1, 2021 $ .01654 per kwh  
 January 4, 2021 $ .01470 per kwh  
2020
General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00140 per kwh   
 November 2, 2020 -$ .00265 per kwh   
 October 2, 2020 -$ .00015 per kwh   
 September 1, 2020 -$ .00559 per kwh   
 August 3, 2020 -$ .00400 per kwh   
 July 2, 2020 -$ .00410 per kwh   
 June 2, 2020 -$ .00031 per kwh   
 May 1, 2020 -$ .00003 per kwh   
 April 2, 2020 $ .00105 per kwh   
 March 3, 2020 $ .00054 per kwh   
 February 3, 2020 $ .00289 per kwh   
 January 3, 2020 $ .00364 per kwh   

 

2019
General Service
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00353 per kwh
November 1, 2019 -$ .00359 per kwh
October 2, 2019 $ .00394 per kwh
September 3, 2019 $ .00323 per kwh
August 2, 2019 -$ .00346 per kwh
July 2, 2019 -$ .00183 per kwh
June 3, 2019 -$ .00034 per kwh
May 2, 2019 -$ .00069 per kwh
April 3, 2019 -$ .00164 per kwh
March 6, 2019 -$ .00049 per kwh
February 8, 2019 $ .00428 per kwh
January 4, 2019 $ .00567 per kwh

 

Large General Service

2022
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .01888 per kWh  
 May 1, 2022 $ .01909 per kWh  
 April 1, 2022 $ .01977 per kWh  
 March 1, 2022 $ .01983 per kWh  
 February 1, 2022 $ .02193 per kWh  
 January 1, 2022 $ .01889 per kWh  
2021
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .01951 per kwh   
 November 1, 2021 $ .01966 per kwh   
 October 1, 2021 $ .01884 per kwh   
 September 1, 2021 $ .01845 per kwh   
 August 1, 2021 $ .02109 per kwh   
 July 1, 2021 $ .01943 per kwh   
 June 1, 2021 $ .01340 per kwh   
 May 1, 2021 $ .01264 per kwh   
 April 2, 2021 $ .01238 per kwh   
 March 2, 2021 $ .01390 per kwh   
 February 1, 2021 $ .01494 per kwh   
 January 4, 2021 $ .01328 per kwh   
2020
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00127 per kwh    
 November 2, 2020 -$ .00239 per kwh    
 October 2, 2020 -$ .00014 per kwh    
 September 1, 2020 -$ .00505 per kwh    
 August 3, 2020 -$ .00361 per kwh    
 July 2, 2020 -$ .00370 per kwh    
 June 2, 2020 -$ .00028 per kwh    
 May 1, 2020 -$ .00003 per kwh    
 April 2, 2020 $ .00095 per kwh    
 March 3, 2020 $ .00049 per kwh    
 February 3, 2020 $ .00261 per kwh    
 January 3, 2020 $ .00329 per kwh    

 

2019
Large General Service
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00319 per kwh
November 1, 2019 -$ .00325 per kwh
October 2, 2019 $ .00356 per kwh
September 3, 2019 $ .00292 per kwh
August 2, 2019 -$ .00312 per kwh
July 2, 2019 -$ .00165 per kwh
June 3, 2019 -$ .00031 per kwh
May 2, 2019 -$ .00062 per kwh
April 3, 2019 -$ .00148 per kwh
March 6, 2019 -$ .00044 per kwh
February 8, 2019 $ .00387 per kwh
January 4, 2019 $ .00567 per kwh

 

Irrigation Service

2022
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .01895 per kWh  
 May 1, 2022 $ .01917 per kWh  
 April 1, 2022 $ .01985 per kWh  
 March 1, 2022 $ .01991 per kWh  
 February 1, 2022 $ .02202 per kWh  
 January 1, 2022 $ .01897 per kWh  
2021
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .01959 per kwh  
 November 1, 2021 $ .01974 per kwh  
 October 1, 2021 $ .01892 per kwh  
 September 1, 2021 $ .01853 per kwh  
 August 1, 2021 $ .02117 per kwh  
 July 1, 2021 $ .01951 per kwh  
 June 1, 2021 $ .01345 per kwh  
 May 1, 2021 $ .01269 per kwh  
 April 2, 2021 $ .01243 per kwh  
 March 2, 2021 $ .01396 per kwh  
 February 1, 2021 $ .01500 per kwh  
 January 4, 2021 $ .01333 per kwh  

 

2020
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00127 per kwh    
 November 2, 2020 -$ .00240 per kwh    
 October 2, 2020 -$ .00014 per kwh    
 September 1, 2020 -$ .00507 per kwh    
 August 3, 2020 -$ .00362 per kwh    
 July 2, 2020 -$ .00372 per kwh    
 June 2, 2020 -$ .00028 per kwh    
 May 1, 2020 -$ .00003 per kwh    
 April 2, 2020 $ .00095 per kwh    
 March 3, 2020 $ .00049 per kwh    
 February 3, 2020 $ .00262 per kwh    
 January 3, 2020 $ .00330 per kwh    

 

2019
Irrigation Service
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00320 per kwh
November 1, 2019 -$ .00326 per kwh
October 2, 2019 $ .00358 per kwh
September 3, 2019 $ .00293 per kwh
August 2, 2019 -$ .00313 per kwh
July 2, 2019 -$ .00166 per kwh
June 3, 2019 -$ .00031 per kwh
May 2, 2019 -$ .00062 per kwh
April 3, 2019 -$ .00149 per kwh
March 6, 2019 -$ .00044 per kwh
February 8, 2019 $ .00388 per kwh
January 4, 2019 $ .00567 per kwh

 

Outdoor Lighting

2022
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .01655 per kWh  
 May 1, 2022 $ .01673 per kWh  
 April 1, 2022 $ .01733 per kWh  
 March 1, 2022 $ .01738 per kWh  
 February 1, 2022 $ .01922 per kWh  
 January 1, 2022 $ .01656 per kWh  
2021
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .01710 per kwh  
 November 1, 2021  $ .01723 per kwh  
 October 1, 2021  $ .01652 per kwh  
 September 1, 2021  $ .01618 per kwh  
 August 1, 2021 $ .01848 per kwh  
 July 1, 2021  $ .01703 per kwh  
 June 1, 2021 $ .01174 per kwh  
 May 1, 2021  $ .01108 per kwh  
 April 2, 2021 $ .01085 per kwh  
 March 2, 2021  $ .01218 per kwh  
 February 1, 2021 $ .01310 per kwh  
 January 4, 2021  $ .01164 per kwh  

 

2020
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00111 per kwh  
 November 2, 2020 -$ .00210 per kwh  
 October 2, 2020 -$ .00012 per kwh  
 September 1, 2020 -$ .00443 per kwh  
 August 3, 2020 -$ .00316 per kwh  
 July 2, 2020 -$ .00325 per kwh  
 June 2, 2020 -$ .00025 per kwh  
 May 1, 2020 -$ .00002 per kwh  
 April 2, 2020 $ .00083 per kwh  
 March 3, 2020 $ .00043 per kwh  
 February 3, 2020 $ .00229 per kwh  
 January 3, 2020 $ .00288 per kwh  

 

2019
Outdoor Lighting
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00279 per kwh
November 1, 2019 -$ .00284 per kwh
October 2, 2019 $ .00312 per kwh
September 3, 2019 $ .00256 per kwh
August 2, 2019 -$ .00274 per kwh
July 2, 2019 -$ .00145 per kwh
June 3, 2019 -$ .00027 per kwh
May 2, 2019 -$ .00054 per kwh
April 3, 2019 -$ .00130 per kwh
March 6, 2019 -$ .00038 per kwh
February 8, 2019 $ .00339 per kwh
January 4, 2019 $ .00567 per kwh

 

OPA (Municipal Pumping/Electric Vehicle)

2022
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .02051 per kWh  
 May 1, 2022 $ .02074 per kWh  
 April 1, 2022 $ .02148 per kWh  
 March 1, 2022 $ .02154 per kWh  
 February 1, 2022 $ .02383 per kWh  
 January 1, 2022 $ .02053 per kWh  
2021
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .02120 per kwh  
 November 1, 2021  $ .02136 per kwh  
 October 1, 2021  $ .02048 per kwh  
 September 1, 2021  $ .02005 per kwh  
 August 1, 2021 $ .02291 per kwh  
 July 1, 2021  $ .02112 per kwh  
 June 1, 2021 $ .01456 per kwh  
 May 1, 2021  $ .01373 per kwh  
 April 2, 2021 $ .01345 per kwh  
 March 2, 2021   $ .01511 per kwh  
 February 1, 2021  $ .01624 per kwh  
 January 4, 2021 $ .01443 per kwh  
2020
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00138 per kwh  
 November 2, 2020 -$ .00260 per kwh  
 October 2, 2020 -$ .00015 per kwh  
 September 1, 2020 -$ .00549 per kwh  
 August 3, 2020 -$ .00392 per kwh  
 July 2, 2020 -$ .00402 per kwh  
 June 2, 2020 -$ .00031 per kwh  
 May 1, 2020 -$ .00003 per kwh  
 April 2, 2020 $ .00103 per kwh  
 March 3, 2020 $ .00053 per kwh  
 February 3, 2020 $ .00284 per kwh  
 January 3, 2020 $ .00357 per kwh  

 

2019
OPA (Municipal Pumping/Electric Vehicle)
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00346 per kwh
November 1, 2019 -$ .00353 per kwh
October 2, 2019 $ .00387 per kwh
September 3, 2019 $ .00317 per kwh
August 2, 2019 -$ .00339 per kwh
July 2, 2019 -$ .00179 per kwh
June 3, 2019 -$ .00033 per kwh
May 2, 2019 -$ .00067 per kwh
April 3, 2019 -$ .00161 per kwh
March 6, 2019 -$ .00048 per kwh
February 8, 2019 $ .00420 per kwh
January 4, 2019 $ .00567 per kwh

 

Controlled Service Water Heating

2022
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .02155 per kWh  
 May 1, 2022 $ .02179 per kWh  
 April 1, 2022 $ .02257 per kWh  
 March 1, 2022 $ .02263 per kWh  
 February 1, 2022 $ .02504 per kWh  
 January 1, 2022 $ .02156 per kWh  
2021
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .02227 per kwh  
 November 1, 2021  $ .02244 per kwh  
 October 1, 2021  $ .02151 per kwh  
 September 1, 2021  $ .02107 per kwh  
 August 1, 2021 $ .02407 per kwh  
 July 1, 2021  $ .02219 per kwh  
 June 1, 2021 $ .01529 per kwh  
 May 1, 2021  $ .01443 per kwh  
 April 2, 2021 $ .01413 per kwh  
 March 2, 2021  $ .01587 per kwh  
 February 1, 2021 $ .01706 per kwh  
 January 4, 2021  $ .01516 per kwh  

 

2020
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00144 per kwh   
 November 2, 2020 -$ .00273 per kwh   
 October 2, 2020 -$ .00015 per kwh   
 September 1, 2020 -$ .00577 per kwh   
 August 3, 2020 -$ .00412 per kwh   
 July 2, 2020 -$ .00423 per kwh   
 June 2, 2020 -$ .00032 per kwh   
 May 1, 2020 -$ .00003 per kwh   
 April 2, 2020 $ .00108 per kwh   
 March 3, 2020 $ .00056 per kwh   
 February 3, 2020 $ .00298 per kwh   
 January 3, 2020 $ .00376 per kwh   

 

2019
Controlled Service Water Heating
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00364 per kwh
November 1, 2019 -$ .00371 per kwh
October 2, 2019 $ .00406 per kwh
September 3, 2019 $ .00333 per kwh
August 2, 2019 -$ .00356 per kwh
July 2, 2019 -$ .00189 per kwh
June 3, 2019 -$ .00035 per kwh
May 2, 2019 -$ .00071 per kwh
April 3, 2019 -$ .00169 per kwh
March 6, 2019 -$ .00050 per kwh
February 8, 2019 $ .00441 per kwh
January 4, 2019 $ .00567 per kwh

 

Controlled Service Interruptible (Dual Fuel)

2022
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .02164 per kWh  
 May 1, 2022 $ .02189 per kWh  
 April 1, 2022 $ .02266 per kWh  
 March 1, 2022 $ .02273 per kWh  
 February 1, 2022 $ .02515 per kWh  
 January 1, 2022 $ .02166 per kWh  
2021
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .02237 per kwh  
 November 1, 2021  $ .02254 per kwh  
 October 1, 2021  $ .02160 per kwh  
 September 1, 2021  $ .02116 per kwh  
 August 1, 2021 $ .02418 per kwh  
 July 1, 2021 $ .02228 per kwh  
 June 1, 2021  $ .01536 per kwh  
 May 1, 2021 $ .01449 per kwh  
 April 2, 2021  $ .01419 per kwh  
 March 2, 2021 $ .01594 per kwh  
 February 1, 2021  $ .01713 per kwh  
 January 4, 2021 $ .01522 per kwh  
2020
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00145 per kwh   
 November 2, 2020 -$ .00275 per kwh   
 October 2, 2020 -$ .00016 per kwh   
 September 1, 2020 -$ .00579 per kwh   
 August 3, 2020 -$ .00414 per kwh   
 July 2, 2020 -$ .00425 per kwh   
 June 2, 2020 -$ .00032 per kwh   
 May 1, 2020 -$ .00003 per kwh   
 April 2, 2020 $ .00108 per kwh   
 March 3, 2020 $ .00056 per kwh   
 February 3, 2020 $ .00299 per kwh   
 January 3, 2020 $ .00377 per kwh   

 

2019
Controlled Service Interruptible (Dual Fuel)
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00366 per kwh
November 1, 2019 -$ .00372 per kwh
October 2, 2019 $ .00408 per kwh
September 3, 2019 $ .00335 per kwh
August 2, 2019 -$ .00358 per kwh
July 2, 2019 -$ .00189 per kwh
June 3, 2019 -$ .00035 per kwh
May 2, 2019 -$ .00071 per kwh
April 3, 2019 -$ .00170 per kwh
March 6, 2019 -$ .00050 per kwh
February 8, 2019 $ .00443 per kwh
January 4, 2019 $ .00567 per kwh

 

Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)

2022
Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
 June 1, 2022 $ .01947 per kWh  
 May 1, 2022 $ .01969 per kWh  
 April 1, 2022 $ .02039 per kWh  
 March 1, 2022 $ .02045 per kWh  
 February 1, 2022 $ .02262 per kWh  
 January 1, 2022 $ .01948 per kWh  
2021
Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2021 $ .02012 per kwh  
 November 1, 2021  $ .02028 per kwh  
 October 1, 2021  $ .01944 per kwh  
 September 1, 2021  $ .01903 per kwh  
 August 1, 2021 $ .02175 per kwh  
 July 1, 2021  $ .02004 per kwh  
 June 1, 2021 $ .01382 per kwh  
 May 1, 2021  $ .01304 per kwh  
 April 2, 2021 $ .01276 per kwh  
 March 2, 2021 $ .01434 per kwh  
 February 1, 2021 $ .01541 per kwh  
 January 4, 2021 $ .01370 per kwh  

 

2020
Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
 December 1, 2020 -$ .00131 per kwh   
 November 2, 2020 -$ .00247 per kwh   
 October 2, 2020 -$ .00014 per kwh   
 September 1, 2020 -$ .00521 per kwh   
 August 3, 2020 -$ .00372 per kwh   
 July 2, 2020 -$ .00382 per kwh   
 June 2, 2020 -$ .00029 per kwh   
 May 1, 2020 -$ .00003 per kwh   
 April 2, 2020 $ .00097 per kwh   
 March 3, 2020 $ .00051 per kwh   
 February 3, 2020 $ .00269 per kwh   
 January 3, 2020 $ .00339 per kwh   

 

2019
Controlled Service Deferred (Thermal Storage/Fixed Time of Delivery)
Effective Date Class Energy Adjustment Factor (EAF)
December 2, 2019 -$ .00329 per kwh
November 1, 2019 -$ .00335 per kwh
October 2, 2019 $ .00367 per kwh
September 3, 2019 $ .00301 per kwh
August 2, 2019 -$ .00322 per kwh
July 2, 2019 -$ .00170 per kwh
June 3, 2019 -$ .00032 per kwh
May 2, 2019 -$ .00064 per kwh
April 3, 2019 -$ .00153 per kwh
March 6, 2019 -$ .00045 per kwh
February 8, 2019 $ .00399 per kwh
January 4, 2019 $ .00567 per kwh

 

The Conservation Improvement Project (CIP) surcharge represents our investment in energy-efficiency programs that help our customers save energy. The CIP surcharge is based on the total kilowatt-hours (kWh) our customers use and the rate associated with that kWh usage except for Standby Service and those customers who have been granted an exemption.

 CIP surcharge factor for bills rendered: 
Class Section From July 1, 2022 to
September 30, 2022
On or after October 1, 2022
Rate per kWh
Residential (includes RDC) 9.01, 9.02 $0.00800 $0.00880
Farm 9.03 $0.00780 $0.00879
General Service 10.01, 10.02, 10.03, 10.07 $0.00803 $0.00893
Large General Service 10.04, 10.05, 10.06, 14.02, 14.03 $0.00765 $0.00897
Irrigation Service 11.02 $0.00695 $0.00544
Outdoor Lighting 11.03, 11.04, 11.07 $0.00656 $0.01267
OPA 11.05 $0.00775 $0.00749
Controlled Service Deferred Load
(Thermal Storage)
14.01, 14.06 $0.00723 $0.00939
Controlled Service Interruptible (Dual Fuel) 14.04 $0.00754 $0.00923
Controlled Service Off Peak
(Fixed time of delivery and EV charging)
14.07, 14.12

$0.00691

$0.00648

 

 

The Electric Utility Infrastructure Cost (EUIC) Recovery Rider allows our company to recover costs incurred for advanced metering infrastructure and a new outage management system.

Electric Utility Infrastructure Cost Recovery Rider per meter charge
Class Section Prior On or after September 1, 2022
per meter charge
Residential 9.01 n/a $0.45
Residential RDC 9.02 n/a $1.13
Farm 9.03 n/a $1.14
General Service 10.01, 10.02 n/a $1.74
General Service - TOU 10.03, 10.07 n/a $3.66
Large General Service 
   Primary / Transmission
10.04, 10.05, 10.06, 11.01 n/a $19.26
Large General Service
   Secondary
10.04, 10.05, 10.06, 11.01 n/a $4.30
Irrigation Service 11.02 n/a $2.94
Outdoor Lighting 11.03 n/a $1.16
OPA 11.05 n/a $1.17
Controlled Service Deferred Load 
   (Thermal Storage)
14.01, 14.06 n/a $1.13
Controlled Service Interruptible 
   Self-Contained
14.04 n/a $1.15
Controlled Service Interruptible 
   CT Metering
14.04 n/a $4.68
Controlled Service Off Peak
(Fixed time of delivery and EV charging)
14.07, 14.12 n/a $1.40

Our EITE Surcharge Rate applies to customers who do not qualify for the EITE (energy-intensive trade-exposed) Rate. Minnesota's energy policy supports lower electric rates for energy-intensive trade-exposed customers. We automatically exclude customers who receive Low Income Home Energy Assistance Program (LIHEAP) funds from the EITE Surcharge Rate.

EITE Surcharge Rate for bills rendered:
On or after December 1, 2022 $0.00034 per kWh
From December 1, 2021, through November 30, 2022 $0.00039 per kWh

 

As of January 2014 the Environmental Cost Recovery Rider (ECRR) allows our company to recover costs that we incur to meet state or federal environmental quality requirements for our electric generating facilities. The Minnesota Public Utilities Commission approved our request for an ECRR to include the costs associated with an air-quality control system (AQCS) at Big Stone plant in South Dakota. The AQCS allows Big Stone Plant to meet federal air quality requirements.

The ECRR factor is multiplied by our customers' monthly bills. It does not apply to any Mandatory Riders, sales tax, or any local assessments.

Environmental Cost Recovery Rider factor for bills rendered:
On or after December 1, 2018 0.0 percent
From November 1, 2017, through November 30, 2018 -0.935 percent
From September 1, 2016, through October 31, 2017 6.927 percent

The Renewable Resource Adjustment allows our company to recover costs previously offset by production tax credits associated with our renewable energy facilities. The energy generated by these facilities reduces the amount of fossil fuel and purchased energy necessary to meet our customers' needs.

The Renewable Resource Cost Recovery Rider from August 1, 2022 to present
  Energy Charge per kWh Demand Charge per kW
Large General Service (a) $0.00141 $0.538
Large General Service SES-Exempt (a) $0.00050 $0.673
All Other Service $0.00295 N/A
All Other Service SES-Exempt $0.00145 N/A
The Renewable Resource Cost Recovery Rider from January 1, 2021 to July 31, 2022
  Energy Charge per kWh
Demand Charge per kW
Large General Service (a) $0.000 $0.000
All Other Service $0.000 N/A

(a) Rate schedules 10.04 Large General Service, 10.05 Large General Service Time of Day, 10.06 Super Large General Service, 14.02 Real Time Pricing Rider, and 14.03 Large General Service Rider

 

Revenue Decoupling is an important regulatory tool in the state of Minnesota and has been used by other state utilities to support conservation efforts. In Docket No. E017/GR-15-1033 the Minnesota Public Utilities Commission (PUC) required Otter Tail Power Company to submit a decoupling proposal, which was subsequently reviewed and approved in Docket No. E017/GR-20-719 on a pilot basis, beginning July 1, 2022. The purpose of this rider is to support customer adoption of Distributed Energy Resources and work in conjunction with the Conservation Improvement Program (CIP) by neutralizing the impact of reduced sales due to promotion of energy conservation efforts. The Revenue Decoupling Mechanism (RDM) is applicable to the customers defined in Minnesota rate schedule 13.10, which defines the inputs and calculation of the RDM and subsequent application of the RDM to the customer groups.

The Revenue Decoupling Mechanism (RDM) Rider: July 1, 2022 to present
  Revenue Decoupling Adjustment
Basket #1 $0.0000 per kWh
Basket #2 $0.0000 per kWh
Basket #3 $0.0000 per kWh
Basket #4 $0.0000 per kWh
Basket #5 $0.0000 per kWh
Basket #6 $0.0000 per kWh

The Transmission Cost Recovery Rider allows our company to recover costs associated with transmission additions designed to meet our customers' growing energy needs, accommodate the delivery of additional renewable energy, and enhance transmission system reliability. 

The Transmission Cost Recovery Rider from August 1, 2022 to present
  Energy Charge per kWh Demand Charge per kW
Large General Service (a) N/A $0.905
Controlled Service (b) $0.00050 N/A
Lighting (c) $0.00269 N/A
All Other Service $0.00262 N/A
The Transmission Cost Recovery Rider from January 1, 2021 to July 31, 2022
  Energy Charge per kWh Demand Charge per kW
Large General Service (a) N/A $1.388
Controlled Service (b) $0.00060 N/A
Lighting (c) $0.00268 N/A
All Other Service $0.00416 N/A

(a) Rate schedules 10.04 Large General Service, 10.05 Large General Service - Time of Day, 10.06 Super Large General Service, 14.02 Real Time Pricing Rider, and 14.03 Large General Service Rider.

(b) Rate schedules 14.01 Water Heating, 14.04 Interruptible Load Self-Contained and CT Metering, 14.06 Deferred Load, 14.07 Fixed Time of Service, and 14.12 Off-Peak Electric Vehicle Rider.

(c) Rate schedules 11.03 Outdoor Lighting (Energy only), 11.04 Outdoor Lighting, and 11.07 LED Street and Area Lighting Dusk to Dawn.

 

The Uplift Program Rider allows our company to recover costs associated with a low-income affordability program for residential customers that qualify for Low-Income Home Energy Assistance Program (LIHEAP) aid.

Uplift Program Rider rate per month
Class Section Prior  On or after September 1, 2022
rate per month
Residential (includes RDC) 9.01, 9.02 n/a $0.81
Farm 9.03 n/a $1.62
General Service 10.01, 10.02, 10.03, 10.07 n/a $1.81
Large General Service 10.04, 10.05, 10.06 n/a $7.33
OPA 11.02, 11.05 n/a $1.04