CARTHAGE About 11:30 a.m. Tuesday, firefighters responded to a report of black smoke filling up the cogeneration plant on West End Avenue.
The Carthage Fire Department called in aerial trucks from Lowville and the town of Watertown to help in fighting the blaze at Carthage Energy LLC, 701 West End Ave.
It was reported on the scene that the fire was electrical and originated in a gear switch.
According to Brian J. Draper, Carthage-Wilna Fire District head driver, the fire was difficult to fight since the structure is so large, and the point of origin was hard to detect through thick smoke.
Once the fire was found in the back right-hand corner of the building, it did not take firefighters long to get it under control.
Mr. Draper estimated that it took 45 minutes to an hour for the fire to be secured. He attributed the timely handling of the situation to the abundance of manpower and the assistance given by power plant employees.
Natural Bridge Fire Chief Jason P. OMeara said there had been initial concerns over whether all of the machinery had been properly shut down and whether there was any danger of power surging back into the plant from the nearby National Grid substation, where the power generated by the plant is relayed.
Mr. OMeara said there was a lot of damage to the interior of Carthage Energy.
When the firefighters were wrapping up at the scene, an explosive sound was heard and the structure was evacuated.
Edward Cousins, plant operations and maintenance manager, said the noise was caused by a ruptured disc a fail-safe where steam is released.
Mr. Cousins confirmed that the fire originated in a gear switch but could not say whether the plant would be shut down or for how long.
Robert B. Ball, village of Carthage code enforcement officer, inspected the site and found that there was no structural damage. He said that machinery had been affected by the fire and water, and that the plant is calling in a high-voltage team to assess the damage and make repairs.
Also responding to the scene were West Carthage firefighters and Black River Ambulance. No injuries were reported.
According to Times archives, Carthage Energy LLC operates its 45-megawatt facility during the summer and peak heating months in the winter, when energy demands are high.