Rate Cases
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Rates and Tariffs
Montana-Dakota Utilities is a regulated utility under the jurisdiction of regulatory commissions in the states it serves. The rates and tariffs listed below are approved by each state’s regulatory commission. Following are links to each commission:
Integrated Resource Plan
Montana-Dakota Utilities’ Integrated Resource Plan (IRP) is used to determine the best value resource plan for its customers. The IRP process includes four main areas: Load forecasting, demand-side analysis, supply-side analysis and integration and risk analysis. A summary of the 2021 IRP study results is provided in the PDF files below:
Monthly Fuel & Purchased Power Adjustments
This charge changes monthly as the cost of fuel and purchased power fluctuates throughout the year. The document below shows the Fuel & Purchased Power Adjustment charge per kWh for the current and prior months applicable in North Dakota and South Dakota.
NORTH DAKOTA: Fuel and Purchased Power Adjustment
SOUTH DAKOTA: Fuel and Purchased Power Adjustment
Electric
Natural Gas
| RATE SCHEDULE | NAME | EFFECTIVE DATE |
|---|---|---|
| 1 | Table of Contents | 4/1/2021 |
| 2 | Communities Served | 4/1/2021 |
| 3 | Rate Summary Sheet | 12/1/2024 |
| 4 | Thermal Zone Boundaries | 5/1/2024 |
| 60 | Residential Gas Service | 4/1/2021 |
| 70 | Firm General Gas Service | 4/1/2021 |
| 71 | Small Interruptible General Gas Service | 4/1/2021 |
| 72 | Optional Seasonal General Gas Service | 4/1/2021 |
| 74 | Firm General Contracted Demand Service | 4/1/2021 |
| 81/82 | Transportation Service | 4/1/2021 |
| 85 | Large Interruptible General Gas Service | 4/1/2021 |
| 87 | Gas Tax Tracking Adjustment | 1/1/2024 |
| 88 | Gas Cost Tracking Adjustment Procedure | 4/1/2021 |
| 89 | Universal System Benefits Charge | 4/1/2021 |
| 90 | Conservation Program Tracking Mechanism | 9/1/2023 |
| 100 | Conditions of Service | 4/1/2021 |
| 101 | Gas Meter Testing Program | 4/1/2021 |
| 119 | Interruptible Gas Service Extension Policy | 4/1/2021 |
| 120 | Firm Gas Service Extension Policy | 4/1/2021 |
| 124 | Replacement, Relocation and Repair of Gas Service Lines | 4/1/2021 |
| RATE SCHEDULE | NAME | EFFECTIVE DATE |
|---|---|---|
| 1 | Table of Contents | 9/1/2024 |
| 2 | Rate Summary Sheet | 12/1/2024 |
| 3 | Preliminary Statement | 9/1/2024 |
| 4 | Sample Forms | 9/1/2024 |
| 5 | List of Gas Contracts with Deviations | 9/1/2024 |
| 60 | Residential Gas Service | 9/1/2024 |
| 70 | Firm General Gas Service | 9/1/2024 |
| 71 | Small Interruptible General Gas Service | 9/1/2024 |
| 72 | Optional Seasonal General Gas Service | 9/1/2024 |
| 74 | Firm General Contracted Demand Service | 9/1/2024 |
| 81/82 | Transportation Service | 9/1/2024 |
| 85 | Large Interruptible General Gas Service | 9/1/2024 |
| 87 | Distribution Delivery Stabilization Mechanism | 9/1/2024 |
| 88 | Purchased Gas Cost Adjustment | 9/1/2024 |
| 90 | Conservation Program Tracking Mechanism | 9/1/2024 |
| 100 | General Provisions | 9/1/2024 |
| 115 | Summary Billing Plan | 9/1/2024 |
| 119 | Interruptible Gas Service Extension Policy | 9/1/2024 |
| 120 | Firm Gas Service Extension Policy | 9/1/2024 |
| 124 | New Installation, Replacement, Relocation and Repair of Gas Service Lines | 9/1/2024 |
| 134 | Rules and Policies for Implementing Master Metering Restrictions | 9/1/2024 |
| 140 | Meter Data and Privacy Policy | 9/1/2024 |
| RATE SCHEDULE | NAME | EFFECTIVE DATE |
|---|---|---|
| 0 | Title Sheet | 3/1/2020 |
| 1 | Table of Contents | 4/23/2020 |
| 2 | Communities Served | 3/1/2020 |
| 3 | Rate Summary Sheet | 12/1/2024 |
| 5 | Thermal Zone Boundaries | 8/1/2024 |
| 6 | Consumer Interest History | 1/1/2024 |
| 60 | Residential Gas Service | 3/1/2020 |
| 70 | Firm General Gas Service | 3/1/2020 |
| 71 | Small Interruptible General Gas Service | 3/1/2020 |
| 72 | Optional Seasonal General Gas Service | 3/1/2020 |
| 81/82 | Transportation Service | 3/1/2020 |
| 85 | Large Interruptible General Gas Service | 3/1/2020 |
| 88 | Purchased Gas Cost Adjustment | 3/1/2020 |
| 100 | Conditions of Service | 4/11/2024 |
| 119 | Interruptible Gas Service Extension Policy | 3/1/2020 |
| 120 | Firm Gas Service Extension Policy | 3/1/2020 |
| 122 | AutoPay Plan | 4/23/2020 |
| 124 | New Installation, Replacement, Relocation and Repair of Gas Service Lines | 3/1/2020 |
| 125 | Balanced Billing Plan | 3/1/2020 |
| 136 | Rule Covering Company Meter Testing Program | 7/9/2020 |
| 137 | Service Interruption Reporting Plan | 3/1/2020 |
| 222 | Proposed Natural Gas Tariffs | 3/1/2020 |