AUGUSTA — A group of Central Maine Power ratepayers says it’s going to the state’s highest court in its fight against the utility’s use of so-called “smart meters.”

The Public Utilities Commission this summer dismissed a 19-person complaint that challenged CMP’s smart-meter program, in which it’s replacing 600,000 traditional electric meters with wireless digital devices.

The PUC allows CMP customers to opt out of using the meters at a cost of $12 a month, but the commission dismissed the complaint raising concerns about safety, privacy and other issues.

Lead plaintiff Ed Friedman of Bowdoinham says the notice of appeal to Maine’s Supreme Judicial Court was filed Monday.

CMP says smart meters are safe, cut energy use and allow utilities to pinpoint problems during power outages more quickly.