About 40,000 National Grid customers in eastern New York recently received bills that were $10 less than what they actually owed.
The incorrect bills that went out were the result of a clerical error, said National Grid spokesman Patrick Stella. The error reflected an incorrect cost per therm — a unit of natural gas — on the supply side of the bill and affected natural gas customers who were billed in the first few weeks of the month.
“It is important to note that National Grid does not profit from this charge,” he said in an email. “This error was on the ‘supply’ portion of the bill, which is the amount of money we spend to purchase the actual natural gas customers use. The cost is passed on to customers without markup. The corrected bill amount will be used to correctly reimburse the supplier for gas that the customers have already used.”
National Grid has more than 550,000 customers in eastern New York. About 260,000 are natural gas customers.
Customers who received incorrect bills will see the canceled bill reflected on their most recent statement, along with the corrected statement. Any payment that has been made will appear as a credit on their most recent billing statement. Customers who did not get a letter were not affected by the error, Stella said.
The error comes a week after the state Public Service Commission authorized a $32 million temporary credit for National Grid to prevent an electric rate increase next month due to the cold winter so far. Earlier this month, New York set a winter peak electrical demand record of 25,738 megawatts.
Anyone having an issue paying their bill can call National Grid at 1-800-642-4272.