Calculator

The goal of Grafton Energy Choice is to provide savings when compared with the average of National Grid’s changing prices. This calculator makes it easy to compare Grafton Energy Choice prices with National Grid’s average prices. Prices shown are the most recent 12-month averages. For current prices, visit the Prices page.

The calculator also quantifies the environmental impact of participating in the Energy Choice Green option.

Grafton Energy Choice impacts only your Electricity Supply price. National Grid’s Delivery Services charges are not impacted by the program.

Your monthly electricity use: (Enter the number of kWh you use in any given month)

Grafton Energy Choice Costs and Benefits
	Energy Choice Basic (option) Receive the minimum amount of renewable electricity required by state law	Energy Choice Standard (default) + 20% from renewable sources	Energy Choice Green (option) 100% renewable electricity
Program price ($/kWh)	$0.13235	$0.14035	$0.16195
Monthly electricity supply charges ($/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*
Compare to National Grid's Basic Service price (the most recent 12-month average**)
	Residential	Commercial	Industrial SEMA	Industrial WCMA
12-month average National Grid price ($/kWh)	$0.17128	$0.16036	$0.13715	$0.12923
Monthly electricity supply charges ($/month)

* 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.

** Please note that the National Grid Basic Service price shown is the average of National Grid’s Basic Service prices for the past 12 months. Because National Grid’s fixed Basic Service prices change so frequently (every 6 months for residential and commercial accounts and every 3 months for industrial accounts), using an average price provides the most accurate comparison.

Savings cannot be guaranteed

Please note: While Grafton Energy Choice offers the potential for savings when compared with National Grid’s Basic Service prices, there is no guarantee of savings. This is because National Grid’s prices change every 6 months or less and future prices are unknown.

Calculator

Grafton Energy Choice Costs and Benefits

Compare to National Grid's Basic Service price

Savings cannot be guaranteed