Power plant noise debated

Resident Diane Brandon set up the meeting with NAEA following an incident last July, when a noise some have compared to a jet engine blast woke people from their sleep. A valve on the bypass system for the steam turbine had become stuck, causing a safety valve to lift to relieve pressure in the boiler.

At the outset, Brandon said this meeting was only about the gas-fired Newington Energy power plant, not to be confused with two other plants, Schiller Station and Newington Station, both farther down river and both owned by Public Service of New Hampshire.

NAEA representatives John Bahrs, director of commercial asset management, and Ed Sundheim, director of technical services, spoke about the plant's operation and safety record.

The Newington Energy plant is a state-of-the art combined cycle gas turbine power plant, and its safety record since NAEA took over in 2008 was unblemished by any safety violations, Bahrs said.

"We have an (Occupational Safety and Health Administration voluntary participation program) safety rating, a self-imposed program," he said, and "top notch people" from General Electric who operate the plant.

"We don't want this to happen," Sundheim said, adding that the plant spent $600,000 last fall in upgrades to reduce normal operating noise.

Residents emphasized that it was the lack of warning or knowledge that concerned them the most about the extremely loud noises. Residents tried to investigate by calling the emergency 911 system, but no one knew what was happening, they said.

"There was an alarm state among many people that night," said Brandon, who asked if people could have "just clicked on our computer and seen what was going on."

Dan Bogannam, who lives across the river from Schiller Station, said the main issue was the psychological shock that people experience when such a loud noise occurs. People think of terrorists when that happens, he said, but added: "We do live across the river from three power plants... and we have to expect that a sound like that is coming from one of those plants."

"We're not the only ones over there," said Bahrs, referring to the other power plants and Pease, which periodically create loud noises.

Bahrs said, when an emergency is occurring, it is difficult for plant operators to communicate with the public.

"One thing that we may be able to institute is having someone from the plant call the police station and let them know what was going on," he said.