Calculator

Please enter your monthly usage (kWh) which can be found on your utility bill and enter it into the green box in the upper right-hand corner below. The calculator will tabulate your supply charges for the month for each Hamilton CCA product option in comparison to National Grid’s Basic Service.

ENTER MONTHLY KWH:    
ELECTRICITY OPTIONS RATE Monthly
Supply Cost
LOCAL GREEN
5% Extra Renewable Energy
MA Class 1
$0.11206 $
LOCAL 50% GREEN
50% Extra Renewable Energy
MA Class 1
$0.12713 $
LOCAL 100 % GREEN
100% Extra Renewable Energy
MA Class 1
$0.14388 $
BASIC
No Extra Renewable Energy
$0.10954 $
NATIONAL GRID RATES, Winter 2021
RESIDENTIAL $0.12388 $
COMMERCIAL $0.10763 $
INDUSTRIAL (NEMA) $0.11325 $

Disclaimer: A goal of the aggregation program is to produce savings for customers, but savings cannot be guaranteed compared to the utility’s basic service rate which changes every six months for Residential and Small Commercial customers and every three months for Large Business customers. The aggregation program seeks to provide price stability and average savings over the full term of the program, but because future basic service rates are not known, there is no guarantee of savings.

Program rates will be in effect from December 2020 to December 2023.  
National Grid Basic Service rates change on May 1 and November 1 for Residential and Commercial accounts, and February 1, May 1, August 1 and November 1 for Industrial accounts.