Calculator

Use the calculator below to compare your electricity supply costs to those of National Grid’s Basic Service costs, as well as to quantify the environmental benefits of participating in the Chelmsford Choice Greener option and the Chelmsford Choice Greenest option.

Please note: Your electricity delivery costs (the cost to bring electricity to your home or business) are determined by National Grid and will not be affected by your participation in the Chelmsford Choice program.

To use the calculator, find your monthly electricity use on your National Grid bill and enter it into the box below (kWh).

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

Chelmsford Choice Costs and Benefits
	Chelmsford Choice Basic (default)	Chelmsford Choice Greener (option) An additional 40% renewable electricity, over and above the minimum required by the state	Chelmsford Choice Greenest (option) 100% renewable electricity, all from New England
Program price ($/kWh)	$0.14843	$0.16415	$0.17849
Monthly electricity supply charges ($/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
12-month average National Grid price ($/kWh)	$0.15357	$0.14109	$0.13774
Monthly electricity supply charges ($/month)

Calculator

Chelmsford Choice Costs and Benefits

Compare to National Grid's Basic Service price