Saturday, March 12, 2011

Turbine project delayed again

Defective turbine blades will set back the completion of Potsdam's hydroelectric project by about a month.

Village Administrator David H. Fenton said Friday the problem was discovered when workers assembling the components in Barrie, Ontario, noticed that air pockets had formed in the stainless steel castings. The air pockets left several holes in the steel, raising concerns about the strength of the blades.

The twin turbines have four blades each on them, with a ninth blade sent over as a spare part. The blades were made by Orengine International Ltd. of Genova, Italy.

"Five of the blades were not considered serviceable," Mr. Fenton said. "They will have to recast all of the turbine blades."

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