Central Maine Power utility lines are seen on Oct. 6, 2021, in Pownal, Maine Credit: Robert F. Bukaty / AP

HALLOWELL, Maine — Maine utility regulators have closed an investigation into allegations raised in a lawsuit against the parent company of Central Maine Power.

The Maine Public Utilities Commission ended its investigation this month after a lawsuit against Avangrid was withdrawn.

No evidence was submitted in court to back claims that Avangrid bought unnecessary equipment so it could charge higher electricity rates and increase its profits, the PUC said. Avangrid denied the allegations, described the plaintiff as a “disgruntled employee” and filed a defamation lawsuit.

“We are pleased that these false allegations made against CMP in court have been withdrawn and the regulatory inquiry has been closed as well,” said Joseph Purington, CMP’s CEO.

The allegations were made by Paulo Silva, chief executive officer of Security Limits Inc. of Pennsylvania. Silva said he stands by the allegations and may refile his lawsuit in a different venue.