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 Power Choice Greener and Power Choice Greenest options in Southborough Community Power Choice.

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 Southborough Community Power Choice.

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)

Southborough Community Power Choice Costs and Benefits
	Power Choice Standard (default) minimum from renewable sources required by law	Power Choice Greener (option) 50% from regional renewable sources	Power Choice Greenest (option) 100% from regional renewable sources
Program price ($/kWh)	$0.13016	$0.13886	$0.15886
Monthly electricity supply charges ($/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	$0.12936
Monthly electricity supply charges ($/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 prices shown are the average of National Grid’s Basic Service prices for the past 12 months. Because National Grid’s fixed Basic Service prices change seasonally, using an average price provides the most accurate comparison.

Savings cannot be guaranteed

Please note that, while Southborough Community Power Choice seeks to provide a price that is equal to or lower than National Grid’s average Basic Service prices, there is no guarantee of savings compared with National Grid’s Basic Service prices because future National Grid prices are unknown.

Calculator

Southborough Community Power Choice Costs and Benefits

Compare to National Grid's Basic Service price

Savings cannot be guaranteed