Electric Supply Rates 

The supply portion of your bill is the cost of electricity you use. Customers have the choice of a six-month fixed price or a monthly variable price. Both rates are based on the current market price of electricity.

How Frequently Supply Rates Change

Fixed supply rates change twice each year—on January 1 and July 1—as demand for energy increases or decreases.

Final Basic Service rates are subject to change and await final regulatory approval.

Current Small and Large Business Supply Rates

Looking for Residential Supply Rates? Click here.

These rates are listed in cents per kilowatt-hour (kWh). A kWh is a measure of energy use over time. 

Upon opening your account, all small business customers are placed on a fixed rate. You may choose the monthly variable rate, however you can only do this once.

The rates for each period are based on our contract with the Basic Service provider.


Small Business and Lighting
Rates A9, B1, B2, B5, B9, C1, C2, C3, 22, 23, 31, 33, 35, 41, 55, 79, 81, 82, 88, 02, 06, 19, 36, 51, 52, 80

  • January 1, 2022 through June 30, 2022 - $0.14761
  • July 1, 2022 through December 31, 2022 - $0.17827

Large Business (NEMA)
Rates B3, B7, 62, 70

  • July 1, 2022 through September 30, 2022 - $0.21883
  • October 1, 2022 through December 31, 2022 - $0.30613


Large Business (SEMA)
Rates G6, G8, 24, 84

  • July 1, 2022 through September 30, 2022 - $0.20959
  • October 1, 2022 through December 31, 2022 - $0.30127

If you're a large commercial/industrial or street light customer, you're automatically placed on a monthly variable rate. This rate changes monthly to reflect the actual cost of electricity purchased each month.

You may choose the fixed rate, however you can only do this once.


Small Business and Lighting
Rates A9, B1, B2, B5, B9, C1, C2, C3, 22, 23, 31, 33, 35, 41, 55, 79, 81, 82, 88, 02, 06, 19, 36, 51, 52, 80

  • January 2022 - $0.20741
  • February 2022 - $0.20032
  • March 2022 - $0.14360
  • April 2022 - $0.10837
  • May 2022 - $0.09838
  • June 2022 - $0.09705
  • July 2022 - $0.17327
  • August 2022 - $0.16792
  • September 2022 - $0.15091
  • October 2022 - $0.14465
  • November 2022 - $0.17895
  • December 2022 - $0.24596


Large Business (NEMA)
Rates B3, B7, 62, 70

  • July 2022 - $0.22688
  • August 2022 - $0.22510
  • September 2022 - $0.20307
  • October 2022 - $0.21053
  • November 2022 - $0.28610
  • December 2022 - $0.40476

Large Business (SEMA)
Rates G6, G8, 24, 84

  • July 2022 - $0.21725
  • August 2022 - $0.21510
  • September 2022 - $0.19472
  • October 2022 - $0.21053
  • November 2022 - $0.28610
  • December 2022 - $0.40476

How We Calculate the Supply Rate

We measure your usage using kilowatt hours (kWh). This is a measure of energy use over time. We then multiply your usage (kWh) by the supply rate to determine your supply charge.

See past electric supply rates

Compare With Third Party Suppliers 

You have the option of choosing Eversource or another energy supplier to obtain energy on your behalf.