GB 2 New Haven transformer fails; company outlines repair and replacement options, vendors and environmental concerns

NEW HAVEN, Conn. — At an evidentiary hearing before the Public Utilities Regulatory Authority on Oct. 30, 2025, GB 2 New Haven LLC described a premature failure of a station service transformer that prevents the plant from using its natural‑gas compression equipment and outlined options to restore the facility’s contractual dual‑fuel capability.

Michael Bruno, executive vice president of strategy and corporate development for GB 2 New Haven, said the transformer ‘‘failed without any notice’’ during normal standby operation and that a replacement or repair will be necessary to restore the gas interconnection. Bruno said the company ‘‘intends to repair or replace the damaged equipment in order to restore the dual fuel capability of the facility’’ unless the authority directs otherwise.

Why it matters: the transformer powers the plant’s fuel‑gas compressor auxiliaries (lights, heaters, lube oil pumps and compressor motors). Without it GB 2 cannot compress gas to the pressures required to run the engines on natural gas, a capability that the company said is part of its obligations under the contract‑for‑differences and PURA orders.

What the company described on the record

• Premature failure and useful life: GB 2 witnesses said a typical transformer useful life is about 20–25 years and…