Price calculator

Use the calculator below to:

  • Compare the cost of participating in Valley Green Energy to your utility’s Basic Service.
  • Quantify the environmental impact of participating in VGE 100% Green.

Valley Green Energy impacts only your electricity supply price. Your utility’s delivery charges are not impacted by the program.

To use the calculator:

Find your monthly electricity use (in kWh) on your Eversource or National Grid electric bill and enter it into the box below.

(Enter the number of kWh you use in any given month)

Valley Green Energy Costs and Benefits
VGE Basic
Minimum required from renewable sources
 VGE 100% Green
100% from renewable sources
Program price ($/kWh) $0.13206 $0.16474 $0.00000
Monthly electricity supply charges ($/month)

Your environmental impact after one year of participation in the program will be equivalent to:
Avoiding this many pounds of CO2
Driving this many fewer miles*
* This calculator calculates equivalencies using information provided by the EPA’s Greenhouse Gas Equivalencies Calculator. Greenhouse gas emissions avoided are calculating using the most recently available NEPOOL GIS emissions factor.

Utility Price Calculator

Compare to National Grid's Basic Service price

National Grid’s most recent 12-month average prices: While the program offers a long-term fixed price, National Grid’s Basic Service prices change every 6 months or less. As a result, comparing the program price with the most recent 12-month average of National Grid’s prices can provide a more accurate comparison than comparing with only National Grid’s current price.
Residential Commercial Industrial
12-month average National Grid price ($/kWh) $0.15428 $0.13952 $0.14645
Monthly electricity supply charges ($/month)

National Grid’s current prices:
Residential and commercial prices are in effect February 1 – July 31, 2026.
Industrial prices are in effect February 1 – April 30, 2026.
Residential Commercial Industrial
Current National Grid price ($/kWh) $0.15372 $0.13493 $0.17125
Monthly electricity supply charges ($/month)

Compare to Eversource's Basic Service price

Eversource’s most recent 12-month average prices: While the program offers a long-term fixed price, Eversource’s Basic Service prices change every 6 months or less. As a result, comparing the program prices with the most recent 12-month average of Eversource’s prices can provide a more accurate comparison than comparing with only Eversource’s current price.
Residential Small business Large business
12-month average Eversource price ($/kWh) $0.13588 $0.13453 $0.13300
Monthly electricity supply charges ($/month)

Eversource’s current prices:
Residential and small business prices are in effect February 1 – July 31, 2026.
Large business prices are in effect February 1 – April 30, 2026.
Residential Small business Large business
Current Eversource price ($/kWh) $0.13683 $0.13634 $0.1463
Monthly electricity supply charges ($/month)

Savings cannot be guaranteed

Please note that, while Valley Green Energy offers the potential for savings when compared with your utility’s Basic Service prices, there is no guarantee of savings. This is because your utility’s Basic Service prices change every 6 months or less and future prices are unknown.