BOSTON (NEWS CENTER) — The parent company of Central Maine Power is facing a class-action lawsuit which alleges that electricity costs were raised impacting all six New England states, including Maine.

According to Hagens Berman Sobol Shapiro website Eversource Energy and Avangrid, which are CMP's parent company, overcharged customers in a "years-long scheme" that impacted six states from 2013-2016 and raised power costs by 20 percent.

Two Mainers and four other New Englanders are bringing the lawsuit against the electricity company, which own several utility subsidiaries.

“Eversource and Avangrid are two of the largest energy companies in New England, and we believe they chose to use their substantial market power to unlawfully jack-up consumers’ electric bills,” said Tom Sobol, partner at Hagens Berman, a national class-action law firm leading the case for consumers. “It appears these companies willfully engaged in this scheme for years, and we intend to help those affected reclaim their losses, and stop this behavior.”

The lawsuit was filed in federal court in Boston on November 16, 2017.