Rates & Tariffs

Transparent Pricing. Fair Service. Member-Focused Rates.

Thumb Electric Cooperative’s rates are designed to be fair, transparent, and aligned with the needs of our member-consumers. Our Board of Directors reviews and approves all rates to ensure affordability and long-term reliability. Jump to:

Rates Overview

Electric Service Rates

Full Tariff & Regulatory Info

Rates Overview

How TEC Sets and Structures Rates

Our electric rates are not-for-profit and member-focused. They’re designed and reviewed by TEC’s elected Board of Directors, with adjustments made based on system needs, regulatory compliance, and cost-of-service.

Whether you're a full-time resident, seasonal user, business owner, or agricultural operation, we offer rate plans tailored to your usage type. Each plan includes a basic service charge and an energy usage rate per kilowatt-hour (kWh).

Electric Service Rates

Rate Schedules by Service Type

  • For year-round residential and farm use

    • Basic Monthly Service Charge: $30.00

    • Energy Charge: $0.13500 per kWh

  • For seasonal homes and low-usage properties

    • Basic Monthly Service Charge: $35.50'

    • Energy Charge: $0.15500 per kWh

    • Billing Note: May be billed monthly or annually, depending on meter readings

  • For businesses, public buildings, churches, schools, under 50 kW demand

    • Basic Monthly Service Charge: $33.00

    • Energy Charge: $0.13450 per kWh

  • For seasonal or low-usage non-residential facilities

    • Monthly Minimum: $38.00

    • Energy Charge: $0.14950 per kWh

    • Notes: Ideal for irrigation, pumps, seasonal schools, etc.

  • For commercial/industrial loads over 50 kW

    • Demand Charge: $11.00 per kW

    • Energy Charge: $0.09350 per kWh

  • For Dual-fuel, geothermal, and electric heating systems

    • Energy Charge: $0.09500 per kWh

    • Interruption Limits: 400 hours/year, 8 hours/day max

  • For night-time controlled energy storage (legacy rate)

    • Available Hours: 11:00 p.m. – 7:00 a.m.

    • Energy Charge: $0.09500 per kWh

    • Note: Only available to existing enrollees before Feb 1, 2024

  • For water heaters with cooperative-installed control devices

    • Option 1 Credit: $2.50/month (40+ gal, 350+ kWh/month, 4 hrs/day control)

    • Option 2 Credit: $3.50/month (80+ gal, 500+ kWh/month, 6 hrs/day control)

    • Note: Closed to new members as of Feb 1, 2024

  • For security and street lighting under yearly contract

    • Rates by Fixture Type:

      • 175W Mercury Vapor – $18.00

      • 400W Mercury Vapor – $25.00

      • 100W HPS – $18.00

      • 250W HPS – $25.00

      • 40W LED – $12.00*

    • Additional Costs: $3–$15 per month per pole or transformer if required

  • For large loads (350 kW+) located near substations

    • Demand Charge: $11.00 per kW

    • Energy Charge: $0.06900 per kWh

Full Tariff & Regulatory Info

Understanding TEC’s Full Rate Book

TEC’s Rate Book for Electric Service outlines all rules, rate schedules, and technical standards approved by our Board of Directors and governed under Michigan law. This includes:

  • Administrative rules for residential and commercial billing

  • Technical standards for electric service

  • Policies on service quality, safety, metering, and interconnection

  • Stray voltage mitigation and underground service guidelines

View Full Tariff Sheet (PDF)

Visit the Michigan Public Service Commission (MPSC) Website for statewide regulatory resources and standards