Bill Inserts, Messages, and Newsletters

• Minnesota and South Dakota customers - Install LED bulbs and save.
• Notice of update - Energy Adjustment Rider in South Dakota. 

• Built to cool, heat, and save! Get year-round comfort and savings with a cold-climate heat pump.
• Minnesota customers - Get up to $50 when you recycle your old, but working, appliance.
• Notice of franchise fee - Dalton, Minnesota customers
• Notice of franchise fee - Gary, Minnesota customers 
• Notice of update - Renewable Resource Cost Recovery Rider in North Dakota.
• Notice of update - Energy Efficiency Partnership Cost Recovery Rider in South Dakota.

• Minnesota residential customers - Solutions for your home. Money in your pocket! Check out our rebates and programs for savings.
• Minnesota customers - Charge up for summer with electric lawn equipment rebates!
• South Dakota residential customers - Enroll in CoolSavings and make it a year to save!
• South Dakota customers - Final rates begin this month. 

• Minnesota customers - Our House Therapy program offers free home energy audits to qualified customers. 
• Minnesota customers - New Electric Vehicle Credit Rider (EVantage).
• Minnesota and North Dakota residential customers - Enroll in CoolSavings and make it a year to save!
• Notice of update - LED Street and Area Lighting Rate Schedule in North Dakota.
• Notice of update - Transmission Cost Recovery Rider in South Dakota.

• Use our My Account portal to manage your electric service account online.
• Minnesota customers - Save on an EV with rebates and lower rates!
• Share your feedback with the Minnesota Public Utilities Commission about our Minnesota Rate Case.
• Notice of update to Electric Utility Infrastructure Cost (EUIC) Rider in Minnesota.
• Interconnection notice for Minnesota customers.
• North Dakota Transmission Cost Recovery Rider.

• Minnesota customers - We’ve requested a rate review in Minnesota. Interim rates begin January 1, 2026. Learn more about what’s driving our request and the potential impact to your bill.
• Minnesota customers - Enjoy simple budget billing with Even Monthly Payment. 
• Minnesota customers - Notice of Supplemental Energy Adjustment. 
• Minnesota customers - New Thermal Market Energy Pricing Rider.
• Minnesota Transmission Cost Recover Rider.
• North Dakota Metering & Distribution Technology (MDT) Cost Recovery Rider.
• North Dakota customers - New Thermal Market Energy Pricing Rider.
• North Dakota and South Dakota customers - Enjoy simple budget billing with Even Monthly Payment. 

• Heat your life and save money with an electric water heater.
• Minnesota Energy Adjustment Rider notice.
• Minnesota Energy Conservation and Optimization Rider notice.
• Minnesota Energy-Intensive Trade-Exposed (EITE) Rider notice.
• South Dakota customers - We’ve requested a rate review in South Dakota. Interim rates begin December 1, 2025. Learn more about what’s driving our request and the potential impact to your bill.

• Minnesota customers - Make the switch to an electric snow blower and receive a rebate.
• Minnesota customers - Our House Therapy program offers free home energy audits to qualified customers.
• Bill payment assistance for military personnel in Minnesota.
• Minnesota and South Dakota customers - Install a smart thermostat and take advantage of generous rebates!
• South Dakota customers - Install LED bulbs and save.

• We’re shining a light on the people behind the power—our employees—who're making a difference in the communities we serve. From volunteering to mentoring, they bring our shared values to life every day.
• Built to cool, heat, and save! Get year-round comfort and savings with a heat pump.
• Minnesota customers - Install LED bulbs and save. It's the smart way to light your life.
• Minnesota Revenue Decoupling Adjustment Rider notice.

• We’re shining a light on the people behind the power—our employees—who're making a difference in the communities we serve. From volunteering to mentoring, they bring our shared values to life every day.
• Heat your life and save money with an electric water heater. 
• Minnesota customers - Upgrade your electrical panel and save money!
• Cold Weather Rule - How to avoid disconnection during cold-weather months in Minnesota.
• Notice of Annual Energy Adjustment True-up in Minnesota.
• Notice of Supplemental Energy Adjustment in Minnesota. 
• Notice of update to Uplift Program Rider in Minnesota.
• North Dakota medical emergency card - Third-party notification.
• Phase-In Rider notice for South Dakota customers.

• We’re shining a light on the people behind the power—our employees—who're making a difference in the communities we serve. From volunteering to mentoring, they bring our shared values to life every day.
• Minnesota customers - Get up to $50 when you recycle your old, but working, appliance.
• Minnesota residential customers - You may qualify for medically necessary equipment protection. 
• Minnesota and South Dakota customers - Tune up to save with rebates for heat pump and air-conditioner maintenance.
• South Dakota customers - Notice of new Thermal Market Energy Pricing Rider.

• Minnesota customers - Add comfort where it counts! Insulate and seal air leaks to receive rebates.
• Notice of update to Renewable Resource Cost Recovery Rider in Minnesota.
• Notice of new Residential Time of Day Pilot Rate in Minnesota.
• Minnesota and South Dakota customers - Get year-round comfort and savings with a heat pump.
• Notice of update to Energy Efficiency Partnership (EEP) Cost Recovery Rider in South Dakota.
• North Dakota customers - Get year-round comfort and savings with a heat pump.

• When you need us most, we're here. 
• Minnesota customers - Get up to $50 when you recycle your old, but working, appliance.
• Minnesota and South Dakota customers - Install LED bulbs and save.
• Notice of update to Renewable Resource Cost Recovery Rider in North Dakota.
• South Dakota residential customers - Solutions for your home. Money in your pocket! Check out our rebates and programs for savings.
• South Dakota customers - We’ve requested a rate review in South Dakota. Learn more about what’s driving our request and the potential impact to your bill.

• When you need us most, we're here.
• Minnesota residential customers - Solutions for your home. Money in your pocket! Check out our rebates and programs for savings.
• Minnesota customers - Get up to $50 when you recycle your old, but working, appliance.
• Minnesota customers - Charge up for summer with electric lawn equipment rebates!
• North Dakota residential customers - Enroll in CoolSavings and make it a year to save!

North Dakota customers
We filed a request with the North Dakota Public Service Commission to approve two new rate options for certain large customers, effective January 1, 2027, including a Large General Service – Tier II – Time of Day Rate and a Large General Service – Tier III – High Power Compute Rate. These updates also include related changes to our Index, Matrices, and Rider Rate Schedules. 

These changes don't affect current electric rates or existing customer bills. 

For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
On May 21, 2026, we filed a request with the South Dakota Public Utilities Commission (SDPUC) to adjust our Phase-In Rider, which recovers costs from projects that help ensure we can continue to provide safe, reliable, and low-cost service.

The filing can be found at https://puc.sd.gov/Dockets/Electric/2026/.

Customers may join with 24 others to file written objections to this increase and to request that the SDPUC suspend the rate and hold a public hearing on the filing. 

For more information, contact us at 800-257-4044 or visit otpco.com.

North Dakota customers
We filed a request with the North Dakota Public Service Commission to approve updates to our Real Time Pricing tariff (including related indexes, matrices, and rider rate schedules) and to our Energy Adjustment Rider.

For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers

• We filed a request with the South Dakota Public Utilities Commission to approve updates to our Real Time Pricing Rider and associated updates to the Index, Matrices, and Rider Rate Schedules within our Rate Book, effective January 1, 2026.
  
  The filing can be found at https://puc.sd.gov/Dockets/Electric/2025.
  
  For more information, contact us at 800-257-4044 or visit otpco.com.
  
  

• On November 3, 2025, we filed a request with the South Dakota Public Utilities Commission (SDPUC) to decrease our Transmission Cost Recovery Rider, which is part of the Transmission Cost Recovery line on your bill. The proposed change is for electricity use beginning March 1, 2026. 

  The filing can be found at https://puc.sd.gov/Dockets/Electric/2025.

  Customers may join with 24 others to file written objection to this decrease and to request that the SDPUC suspend the rate and hold a public hearing on the filing.

  For more information, contact us at 800-257-4044 or visit otpco.com.

North Dakota customers
On September 15, 2025, we filed a request with the North Dakota Public Service Commission to update our Transmission Cost Recovery Rider, which is on the Transmission Rider line of your bill. 

The proposed change is for bill usage beginning January 1, 2026. This rate adjustment is currently a proposal; if the Commission suspends it, the new rates won't become effective until the Commission grants approval.   

If approved, customers can expect the following average monthly bill impacts: 

• Large General Service: $201.29 (from $0.711 to $1.239 per kW)
• Controlled Service: $0.00 (from $0.00 to $0.00 per kWh)
• Lighting: $0.04 (from $0.00120 to $0.00213 per kWh)
• Residential and all other service: $1.96 (from $0.00240 to $0.00387 per kWh)

For more information, contact us at 800-257-4044 or visit otpco.com.

North Dakota customers
On August 1, 2025, we filed a request with the North Dakota Public Service Commission to adjust our Metering & Distribution Technology (MDT) Cost Recovery Rider, which is part of the Metering & Distribution Technology Rider line on your bill. This rider allows us to recover costs associated with advanced metering infrastructure and our demand response system.

The proposed change to our MDT Cost Recovery Rider would begin January 1, 2026. The new rate for residential customers would be $1.84 with a monthly bill impact of $0.77. This change is proposed only and, if suspended by the Commission, won't go into effect until the Commission acts. For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
We filed a request with the South Dakota Public Utilities Commission (SDPUC) to approve our new Thermal Market Energy Pricing Rider and associated updates to the Index, Matrices, and Rider Rate Schedules within our Rate Book, effective August 1, 2025.

We also filed a request with the SDPUC for approval of a $0.00053 per kilowatt-hour increase to our Energy Efficiency Partnership Cost Recovery Rider. This rider allows us to recover costs associated with energy-efficiency programs and education for our South Dakota customers. 

Customers may join with 24 others to file written objections to this increase and request the SDPUC suspend the rate and hold a public hearing on the filing.

These filings can be found at https://puc.sd.gov/Dockets/Electric/2025.

For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
On January 31, 2025, we filed a request with the South Dakota Public Utilities Commission to update our Small Power Producer Riders, My Renewable Energy Credits (My RECs) Rider, and our Voluntary Rider – Availability Matrix Rate Schedules, effective April 1, 2025.

The filing can be found at puc.sd.gov/Dockets/Electric/2025/default.aspx.

For more information, contact us at 800-257-4044 or visit otpco.com.

North Dakota customers
On December 31, 2024, we filed a request with the North Dakota Public Service Commission (PSC) to adjust our Renewable Resource Cost Recovery Rider, which is part of the Renewable Rider line on your bill. This rider allows us to recover costs associated with renewable generation resources. 

The rate is proposed to decrease to 0.081% of base charges and credits for the recovery period beginning April 1, 2025. A residential customer using 1,000 kilowatt-hours could see a monthly bill decrease of approximately $1.62 on April 1, 2025. This change would not be effective until the PSC reviews and approves. 

For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
On December 20, 2024, we filed a request with the South Dakota Public Utilities Commission (SDPUC) to adjust our Phase-In Rider, which recovers costs from projects that help ensure we can continue to provide safe, reliable, and low-cost service.

The filing can be found at https://puc.sd.gov/Dockets/Electric/2024/.

Customers may join with 24 others to file written objections to this increase and to request that the SDPUC suspend the rate and hold a public hearing on the filing.

For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
On November 1, 2024, we filed a request with the South Dakota Public Utilities Commission (SDPUC) to increase our Transmission Cost Recovery Rider, which is part of the Transmission Cost Recovery line on your bill. The proposed change is for bill use on and after March 1, 2025.

The filing can be found at https://puc.sd.gov/Dockets/Electric/2024.

Customers may join with 24 others to file written objection to this increase and to request that the SDPUC suspend the rate and hold a public hearing on the filing. 

For more information, contact us at 800-257-4044 or visit otpco.com.

North Dakota customers
On September 16, 2024, we filed a request with the North Dakota Public Service Commission to update our Transmission Cost Recovery Rider, which is on the Transmission Rider line of your bill. The proposed change is for bill usage beginning January 1, 2025. This change is proposed only, and if suspended by the Commission, new rates wouldn’t take effect until the Commission approves them. 

If approved, customers can expect the following average monthly bill impacts:

• Large General Service: -$154.43 (from $1.095 to $0.711 per kW)
• Controlled Service: -$0.82 (from $0.00051 to $0.00 per kWh)
• Lighting: -$0.10 (from $0.00331 to $0.00120 per kWh)
• Residential and all other service: -$1.25 (from $0.00336 to $0.00240 per kWh)

For more information, contact us at 800-257-4044 or visit otpco.com.

North Dakota customers
On August 1, 2024, we filed a request with the North Dakota Public Service Commission to increase our Metering & Distribution Technology (MDT) Cost Recovery Rider, which is part of the Metering & Distribution Technology Rider line on your bill. This rider allows us to recover costs associated with advanced metering infrastructure and our demand response system.

The proposed change to our MDT Cost Recovery Rider would begin January 1, 2025. The new rate for residential customers would be $1.07 with a monthly bill impact of $0.34. This change is proposed only and, if suspended by the Commission, won't go into effect until the Commission acts. For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
On June 3, 2024, we filed a request with the South Dakota Public Utilities Commission (SDPUC) to increase our Phase-In Rider, which recovers costs from projects that help ensure we can continue to provide safe, reliable, and low-cost service.

The filing can be found at https://puc.sd.gov/Dockets/Electric/2024/.

Customers may join with 24 others to file written objections to this increase and to request that the SDPUC suspend the rate and hold a public hearing on the filing.

For more information, contact us at 800-257-4044 or visit otpco.com.

South Dakota customers
On May 1, 2024, we filed a petition with the South Dakota Public Utilities Commission for approval of a $0.00026 per kilowatt-hour (kWh) decrease to our Energy Efficiency Partnership (EEP) Cost Recovery Rider. This rider allows us to recover costs associated with energy-efficiency programs and education for our South Dakota customers.

The filing can be found at https://puc.sd.gov/Dockets/Electric/2024/. 

Customers may join with 24 others to file written objections to this decrease and request the Commission suspend the rate and hold a public hearing on the filing.

For more information, contact Customer Service at 800-257-4044 or visit otpco.com.

North Dakota customers
North Dakota interim rates take effect this month. You’ll see an average net increase of 6.03%. Look for details at otpco.com/NDRateCase.