CHESHIRE, Conn. (August 14, 2012)--A Connecticut utility has reimbursed a woman almost $10,500 after acknowledging that it billed her for 25 years for the electricity used to power streetlights near her home.

Grace Edwards told the Hartford Courant she discovered the billing error after a prospective buyer for the house in Cheshire asked for a history of utility charges.

Connecticut Light & Power said a developer who previously owned the home had agreed to pay for the lights.

The company initially refused to reimburse Edwards but relented when the state's Office of Consumer Counsel got involved.

The overcharges amounted to about $35 each month.

CL&P spokesman Mitch Gross said the utility apologized to Edwards for the error and inconvenience.