A glitch in a new billing system used by BGE has resulted in some customers being double billed for some electricity supply charges.
Aaron Koos, a spokesman for the company, said the issue affects about 14,000 or about 1 percent of its 1.2 million customers in central Maryland who buy their electricity from suppliers other than BGE.
"We've identified the issue and the affected customers," Koos said.
BGE serves electricity customers in Baltimore City, Anne Arundel, Baltimore, Carroll, Harford, Howard, Montgomery and Prince George's counties.
The company explained the issue after a customer, who asked to remain anonymous, contacted Patch Wednesday about the over-charges.
BGE is in the midst of upgrading its billing system for the first time in more than 20 years. The change over has resulted in "some challenges," according to Rob Gould, another BGE spokesman.
In this case, a difference of one day between the billing date and the meter reading date resulted in some customers being overcharged in March. The error could result in hundreds of dollars in over-charges depending on an individual customer's usage, Koos said.
He said customers who believe they have been affected have several options.
Customers who have already paid their bills will receive a credit on their bill for next month.
Customers who believe they have been over-charged but have not paid their bill can either pay the bill and receive a credit or call BGE at 800-685-0123 to get their correct bill total.
Koos said the company is also working with customers to waive late charges and set up payment plans for anyone with difficulty paying their bills as a result of the billing system change over.