South Central Montana Rates Summary

Residential Service Rates (PDF)
(all residential services, see rate schedule for Rules and Regulations)

• Basic Charge (single-phase service): $24.31 per month
• Basic Charge (three-phase service): $36.28 per month
• Energy Charge: $0.1364 per kWh
• No Demand Charge

Small General Service Rates (PDF)
(non-residential services less than 50 kW)

• Basic Charge (single-phase service): $36.53 per month
• Basic Charge (three-phase service): $51.87 per month
• Energy Charge: $0.11918 per kWh
• No Demand Charge

Medium General Service Rates (PDF)
(non-residential services 50 kW to less than 100 kW)

• Basic Charge (single-phase service): $38.47 per month
• Basic Charge (three-phase service): $53.09 per month
• Energy Charge: $0.07508 per kWh
• Demand Charge: $12.77 per kW
• Reactive Power Charge: $1.29 per kVar
• Primary Meter Discount: -1.5% of total bill and -$0.15 per kW

Large General Service Rates (PDF)
(non-residential services 100 kW to less than 400 kW)

• Basic Charge: $64.24 per month
• Load Size Charge: $1.26 per kW
• Energy Charge: $0.05631 per kWh
• Demand Charge: $15.41 per kW
• Reactive Power Charge: $1.29 per kVAR
• Primary Meter Discount: -1.5% of total bill and -$0.15 per kW

Extra Large General Service Rates (PDF)
(non-residential services 400 kW to less than 1,000 kW)

• Basic Charge: $107.28 per month
• Load Size Charge: $1.53 per kW
• Energy Charge: $0.04915 per kWh
• Demand Charge: $19.17 per kW
• Reactive Power Charge: $1.29 per kVAR
• Primary Meter Discount: -1.5% of total bill and -$0.15 per kW

Industrial Service Rates (PDF)
(services 1,000 kW or greater)

• Basic Charge: $350.81 per month
• Load Size Charge: $1.57 per kW
• Energy Charge: $0.04189 per kWh
• Demand Charge: $23.99 per kW
• Reactive Power Charge: $1.29 per kVAR
• Primary Meter Discount: -1.5% of total bill and -$0.15 per kW

Lighting Security Service Rate (PDF)

• 70 or 100 watt, High Pressure Sodium (HPS) $9.10 per month
• 200 watt, HPS $11.54 per month
• 400 watt, HPS $17.96 per month
• 175 watt, Mercury Vapor (MV)* $10.94 per month
• 400 watt, MV* $18.72 per month
• 1000 watt, MV* $36.42 per month

Municipal Metered Street Lights (PDF)

• Energy Charge: $0.05474 per kWh

Government-School-Recreation Field Lighting Service Rates (PDF)

• Basic Charge: $5.11 per month
• Demand Charge:
  • No Charge for first 15 kW
  • $3.23 per kW for all kW greater than 15 kW.
• Energy Charge: $0.04273 per kWh

Line-Retention-Service-Rates (PDF)

• Residential – RES51: 50% of Basic Charge
• Small General Service – SGS51: 50% of Basic Charge
• Medium General Service – MGS51: Basic Charge
• Large General Service – LGS51: Basic Charge