Repercussions from a shake-up at the Public Utility Regulatory Authority continued Thursday when United Illuminating promised to appeal the proposed denial of a requested rate increase because it claims the draft decision is “tainted by bias” on the part of resigning authority Chief Marissa Gillett.

UI’s continuing, harsh criticism of Gillett at the hearing and an energetic defense by Attorney General William Tong’s office suggest the contention between PURA and the utility industry that has grown during Gillett’s five years in office did not disappear with her decision a week ago to resign.

But there was a positive sign: UI proposed holding discussions with other parties to the rate case in an effort to reach a consensus decision and those parties tentatively agreed on the conditi

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