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).