Massachusetts Attorney General Maura Healey announced that her office has negotiated an agreement with National Grid that returns more than $1.5 million to 4,500 National Grid residential gas customers who, as stated by the AG's office, "were wrongfully charged a more expensive rate."
Under the agreement, National Grid will issue bill credits to more than 4,500 residential gas customers who were incorrectly charged the company’s non-heating rate instead of the less expensive heating rate. Credit amounts will be customer-specific and issued later this year.
Note that the overcharging, and refunds, only relate to delivery service. Residential heating and non-heating customers pay the same Cost of Gas Adjustment (supply rate)